[CentOS] php.ini disabled notices still shows notices in the logs

[George]

Hello,

I did some google searches but could not find anyone raising a similar 
issue immediatly but perhaps there is already somewhere a bugreport 
upstream about this I did overlook ...

When you disable notices in /etc/php.ini:
error_reporting = E_ALL & ~E_NOTICE
on a simple LAMP setup of CentOS 5.x (running 5.0 up to 5.5) I still see 
notices in the log files ... (which causes a serious overhead of logs in 
my case ...)
Anyone can confirm this and/or can point me towards bugreports/solutions?

Regards,

George
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[CentOS] centos 6 - changing resolv.conf by hand gets overwritten by rebooting

[George]

given machine with C6 x86_64 (seen on C 6.6 but also before and probably 
still present on C6.7) only 1 interface, there is dhcp on this network 
(for kickstarting) but the machines have static ip's, and NO 
networkmanager installed


contents of resolv.conf
search some.domain.here
nameserver x.x.x.x #dns1
nameserver y.y.y.y #dns2

change resolv.conf to:
search some.newdomain.here
nameserver z.z.z.z #dns3
nameserver a.a.a.a #dns4

reboot machine and the contents of resolv.conf is again:
search some.domain.here
nameserver x.x.x.x #dns1
nameserver y.y.y.y #dns2

change it again to:
search some.newdomain.here
nameserver z.z.z.z #dns3
nameserver a.a.a.a #dns4
reboot again
now it stick to the last update.

Already tried to set /etc/sysconfig/network-scripts/ifcfg-eth0 
NM_controlled=no

with no result
other suggestions around the internet suggest also to set in
/etc/sysconfig/network-scripts/ifcfg-eth0
usepeerdns=no
have not tried this but should check if this fixes stuff.

Question: can someone explain me WHY this would help if it does and if 
this a valid entry in /etc/sysconfig/network ?
since I don't want to go over all my machines (a couple thousand) 
figuring out how many interfaces they have and what their names are to 
reconfigure that for each interface (some even suggest this should be 
done for lo too).


See also dozens of questions like that using google:
https://www.google.com/search?q=centos+6+overwrites+resolv.conf+reboot

G.
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Re: [CentOS] Setting up postfix under CentOS-6

[george]

How about trying this out ->
http://www.howtoforge.com/virtual-users-and-domains-with-postfix-courier-mysql-and-squirrelmail-centos-6.3-x86_64



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Re: [CentOS] Odd problems with CR updates

[george]

Thanks, that was the solution for me too

Scott Robbins  writes:


> I may have solved this.  As I was doing CR updates in bits and pieces, I
> think I installed nss-softokn and didn't install nss-softokn-freebl.
> Installing both at the same time seems to have fixed the issue.  
> 




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Re: [CentOS] chromium-34.0.1847.132-1.el6

[George]

Chrome 24 (one of the last versions of chrome still able to run on 
centos 6) has new enough peperflash to run vsphere 5.5 webinterface 
(also needs openjdk 1.7 installed and some fonts to work properly)

George

On 26/04/14 00:59, Richer, Mark (CIV) wrote:
> Is there a version of chromium for CentOS with a new enough flash plug-in to 
> work with VMware vSphere client for ESXi 5.5?
>
> Thanks,
> Mark
>
> MARK H RICHER, MS CS
> NPS-NCR Digital Forensics Lab IT Manager
> Computer Science Department
> Naval Postgraduate School - National Capital Region (NCR)
> 900 N Glebe Rd, Rm 5-182, Arlington, VA 22203
> 571.858.3254 (o) 571.303.9498 
> (m)mhric...@nps.edu<mailto:mhric...@nps.edu>
>
> On Apr 25, 2014, at 18:54, "ngeorgop" 
> mailto:ngeor...@gmail.com>> wrote:
>
> New version of chromium (34.0.1847.132) chromium-34.0.1847.132-1.el6.i686.rpm
> <https://drive.google.com/file/d/0B9RlkKQB1POSR0pRLXU1Q1JQTmc/edit?usp=sharing>
> Source:  chromium-34.0.1847.132-1.el6.src.rpm
> <https://docs.google.com/file/d/0B9RlkKQB1POSd1NWWDM2bHRpU1k/edit>  I was
> *OBLIGED* to patch gtk2-2.20.1 in order to build it:
> gtk2-2.20.1-5.el6.i686.rpm
> <https://docs.google.com/file/d/0B9RlkKQB1POSVnAzVlhuakUwUkU/edit>
> gtk2-devel-2.20.1-5.el6.i686.rpm
> <https://docs.google.com/file/d/0B9RlkKQB1POSYjJSLXVTT0FucnM/edit>  Source:
> gtk2-2.20.1-5.el6.src.rpm
> <https://docs.google.com/file/d/0B9RlkKQB1POSdVQ0SG9hY1pmOHM/edit>  Waiting
> for comments
>
>
>
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[CentOS] Anybody running OpenClinica on CentOS?

[Siju George]

Hi,

Is anybody running OpenClinica on CentOS?


http://www.openclinica.org/page.php?pid=133

Thanks

--Siju
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[CentOS] not able to check in all code into svn which creates problem in deployment

[Agnello George]

HI

i  have currently started to deploy code into our production environment
from the the dev environment, we deploy code on to the production  from the
svn , ( i do a svn export ) , some times not  code is checked into the svn
and it does not throw me a error .

is there a way i can verify or write a script to check each file that is in
the SVN  is same as that in the dev environment .

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[CentOS] unable to check in code to svn when files contain spaces or characters

[Agnello George]

i got a file like this and i need add it into my svn

admin/upload_data/FINAL  leg  list  19_01_2010 to  agar  (Merged data in
one).xls

i as able to add other files with space using the following command :

 svn st |grep ? |cut -c8- |sed 's/ /\\ /g' |xargs svn add

however there are some special characters like ( ) +#@  that svn cannot
understand as the full path of  the file .

can some one help me in this in perl or in shell .

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Re: [CentOS] unable to check in code to svn when files contain spaces or characters

[Agnello George]

On Mon, Jan 24, 2011 at 6:25 PM, Nico Kadel-Garcia  wrote:

> On Mon, Jan 24, 2011 at 6:57 AM, Agnello George
>  wrote:
> > i got a file like this and i need add it into my svn
> >
> > admin/upload_data/FINAL  leg  list  19_01_2010 to  agar  (Merged data in
> > one).xls
>
> First: don't do this, seriously. You're begging for pain in your
> scripting to handle such files from now on.
>
>
> > i as able to add other files with space using the following command :
> >
> >  svn st |grep ? |cut -c8- |sed 's/ /\\ /g' |xargs svn add
>
> Second, stop playing with xargs in command line handling. It is not your
> friend.
>
> You should be able to do "svn add "admin/upload_data/FINAL leg list
>
>svn add "admin/upload_data/FINAL  leg  list  19_01_2010 to  agar
> (Merged data in one).xls"
>
> > however there are some special characters like ( ) +#@  that svn cannot
> > understand as the full path of  the file .
>
> Well, *YES*. You're going to have difficulty getting characters that
> mean things to the subversion somponent numbering scheme or the
> Subversion URL scheme, such as '@', '/', and '#' into the actual
> filenames. Even if you can leverage your way past this by stuffing in
> enough backslashes, you're effectively destabilizing your Subversion
> repository and scripting to handle it, especially post-commit scripts.
>
> > can some one help me in this in perl or in shell .
> >
> > --
> > Regards
> > Agnello D'souza
>
> Can you first explain why you want, or need,  to do this?
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 the reason i need to do this i want to automate the whole process  of
checking into to svn  from dev server and checking out to QA server  for
testing purpose , my script would change the config file in QA server  .

the developers have lots of issues while checking in .



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Re: [CentOS] unable to check in code to svn when files contain spaces or characters

[Agnello George]

On Mon, Jan 24, 2011 at 7:12 PM, Les Mikesell  wrote:

> On 1/24/11 5:57 AM, Agnello George wrote:
> > i got a file like this and i need add it into my svn
> >
> > admin/upload_data/FINAL  leg  list  19_01_2010 to  agar  (Merged data in
> one).xls
> >
> > i as able to add other files with space using the following command :
> >
> >   svn st |grep ? |cut -c8- |sed 's/ /\\ /g' |xargs svn add
> >
> > however there are some special characters like ( ) +#@  that svn cannot
> > understand as the full path of  the file .
> >
> > can some one help me in this in perl or in shell .
>
> What you need to know is too long to describe here, but first you need to
> find a
> list of shell metacharacters and how to quote them on the command line.
> Short
> version is that a \ quotes the next character single quotes quote
> everything
> except another single quote literally, double quotes cover most things but
> allow
> $variable expansion.
>
> Then you need to look at what subversion itself requires after you get the
> literal value past the shell parser.  I thought it was just that @ was
> interpreted as file@revision peg revision unless you append another @ to
> the end
> but there could be more restrictions.   All of that is simple enough to
> work
> around - but probably not worth it compared to using sensible names.
>  However
> the thing that is going to kill you is that files that differ only in case
> of
> one or more letters are different files on linux - and in a linux svn
> repository
> - but not on windows (where such things are most likely being created).
>  Enforce
> some rules before that happens.
>
> --
>   Les Mikesell
>lesmikes...@gmail.com
>
>

I found the solution ( i think )
i did

 svn add  html/Set min account.html
svn: warning: 'html/Set' not found
svn: warning: 'min' not found
svn: warning: 'account.html' not found


then i did
svn add  "html/Set min account.html"
A html/Set min account.html


so here is my final answer

instead of doing

for i in $(svn st | grep "?" | awk '{print $2}'); do svn add $i;done

i can do

for i in $(svn st | grep "?" | awk '{print $2}'); do svn add *"$i" *;done

This is working for me ... i wonder if i am going to stumble somewhere
...humm!

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[CentOS] rsync permission denied , without changing apache user and group setting

[Agnello George]

Hi

i got two server webserver1 and webserver2  i want to rsync some data form
webserver1 to webserver2  using a user called syncuser

( syncuser is added to the group apache : adduser -G apache syncuser )

here is my command :

[root@web1 projects]# rsync -avzh /var/www/projects/beta-website1
syncuser@web2server:/var/www/projects
syncuser@web2server password:
building file list ... done
beta-website1
rsync: failed to set times on "/var/www/projects/beta-website1": Operation
not permitted (1)
beta-website1/index.html
rsync: mkstemp "/var/www/projects/beta-website1/.index.html.ZW9de8" failed:
Permission denied (13)
rsync: failed to set times on "/var/www/projects/beta-website1": Operation
not permitted (1)

sent 219 bytes  received 54 bytes  60.67 bytes/sec
total size is 57  speedup is 0.21
rsync error: some files could not be transferred (code 23) at main.c(892)
[sender=2.6.8]


on webserver2 my permission are as follows ( i dont not want to change the
permissions, i want user and group to be apache   )

[root@web6 projects]# ll
total 20
drwxr-xr-x  2 apache apache  4096 Feb  7 15:54 beta-website1


Can some one help me understand how to sync thses  files .



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[CentOS] creating a htpasswd file for certain urls

[Agnello George]

H All

I am in a kind of fix , i  got a website ( beta.somesite.com ) .. that
need to be password protected , however there are two URLs that
should be allowed to all with out password access. Ona cent os box 5.5
i am running apache .

the entire site needs passwd protection except for the  Below  Urls .

http://beta.somesite.com/wp-content/uploads/2011/03/large_1990782-e1299229617964.jpg

http://beta.somesite.com/?cat=592&feed=rss2


Your advice will be of great help

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Re: [CentOS] creating a htpasswd file for certain urls

[Agnello George]

On Fri, Mar 18, 2011 at 10:07 PM, John Doe  wrote:
> From: Jason Slack-Moehrle 
>
>>> I am in a kind of fix , i  got a website ( beta.somesite.com ) ..  that
>>> need to be password protected , however there are two URLs  that
>>> should be allowed to all with out password access. Ona cent os box  5.5
>>> i am running apache .
>>> the entire site needs passwd  protection except for the  Below  Urls .
>
> Google ("apache protect pages except page") says:
> http://snipplr.com/view/28785/htaccess-password-protect-your-entire-site-except-certain-pages/
>
>



i think  the above link would of worked  , but i was able to fix the
first part of my problem :



DirectoryIndex index.php
Options Indexes FollowSymLinks MultiViews
AllowOverride None
AuthType Basic
AuthName "beta.somesite.com "
AuthUserFile /var/www/html/projects/beta.somesite.com/.htpasswd
Require valid-user
SetEnvIf request_uri "/wp-content" allow_all   #  this works perfectly
#SetEnvIf request_uriregex '/?cat=592&feed=rss2' allow_all
## this does not work ??!!
Satisfy any
Order allow,deny
Allow from env=allow_all



but the other part of my problem (
http://beta.somesite.com/?cat=592&feed=rss2  )  which is basically
params , which i am unable to allow for rss feeds .




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[CentOS] reliance netconnect as on a Linux system ( centos5.5 ) Modem not responding.

[Agnello George]

Hi

I am trying to connect a reliance netconnect data card on my linux box (
cent os )  , i am able to the detect the device /dev/ttyUSB0

these are the following steps I did :

Check your card is recognized by the kernel
# cat /proc/bus/usb/devices

.
.
T:  Bus=07 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 11 Spd=12  MxCh= 0
D:  Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=19d2 ProdID=fff5 Rev= 0.00
S:  Manufacturer=ZTE, Incorporated
S:  Product=USB Storage
S:  SerialNumber=0002
C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr=100mA
I:  If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50
Driver=usbserial_generic
E:  Ad=89(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=0a(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
.
.


i use the usb_modeswitch to detach it as a storage dev and attach it to a
usb dev


usb_modeswitch -v 0x19d2 -p 0xfff5 -d 1  19d2:fff5

usb_modeswitch -v 0x19d2 -p 0xfff5  -H 1


now i modprobe the usbserial


modprobe -v -r usbserial

modprobe -v usbserial vendor=0x12d1 product=0x1001


now do I do  a dmesg

::
usbcore: deregistering driver usbserial_generic
drivers/usb/serial/usb-serial.c: USB Serial deregistering driver generic
usbcore: deregistering driver usbserial
usbcore: registered new driver usbserial
drivers/usb/serial/usb-serial.c: USB Serial support registered for generic
usbserial_generic 7-2:1.0: generic converter detected
usb 7-2: generic converter now attached to ttyUSB0
usbcore: registered new driver usbserial_generic
drivers/usb/serial/usb-serial.c: USB Serial Driver core



i edit the vi /etc/wvdial.conf with the following content

[Dialer Defaults]
Modem = /dev/ttyUSB0
Baud = 57600
Setvolume = 0
Dial-AT-OK ATDT Command =
Init1 = ZTE
FlowControl = Hardware (CRTSCTS)
Phone = #777
Username = 7228412233
Password = 7228412233
New PPPD = yes
Carrier Check = no
Stupid Mode = yes


wen i try to detect the modem it gives me a failure

wvdialconf /etc/wvdial.conf

:::
Scanning your serial ports for a modem.

ttyS0<*1>: ATQ0 V1 E1 -- failed with 2400 baud, next try: 9600 baud
ttyS0<*1>: ATQ0 V1 E1 -- failed with 9600 baud, next try: 115200 baud
ttyS0<*1>: ATQ0 V1 E1 -- and failed too at 115200, giving up.
Port Scan<*1>: S1   S2   S3
WvModem<*1>: Cannot get information for serial port.
ttyUSB0<*1>: ATQ0 V1 E1 -- failed with 2400 baud, next try: 9600 baud
ttyUSB0<*1>: ATQ0 V1 E1 -- failed with 9600 baud, next try: 115200 baud
ttyUSB0<*1>: ATQ0 V1 E1 -- and failed too at 115200, giving up.


Sorry, no modem was detected!  Is it in use by another program?
Did you configure it properly with setserial?

Please read the FAQ at http://open.nit.ca/wvdial/
:::

when i try to run the wvdial command it give me a Modem not responding.

-qa ~]# wvdial
--> WvDial: Internet dialer version 1.54.0
--> Cannot get information for serial port.
--> Initializing modem.
--> Sending: ATZ
--> Sending: ATQ0
--> Re-Sending: ATZ
--> Modem not responding.


Can some one please help me with this , i searched ever forum available



Thanks a lot .
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Re: [CentOS] CentOS Security Advisories OVAL feed??

[Carl George]

> Q3) Does this indicate that only the latest CentOS (minor) release can
> be considered "secure" or "patched"?

Yes.  Security errata for previous Enterprise Linux minor releases are
a Red Hat product called Extended Update Support (EUS) [0].  CentOS
doesn't build EUS updates.  CentOS point releases are a point in time
reference and an implementation detail, not something you should try
to lock your system to.  When someone says they are using CentOS X.Y,
that just means that they haven't updated their system since X.Y+1 was
released.  Effectively, you don't have CentOS 8.1, you have outdated
CentOS 8.

[0] https://access.redhat.com/articles/rhel-eus

On Tue, Aug 4, 2020 at 11:34 AM  wrote:
>
> Dear List,
>
> I have spent some time playing around with oscap and the RHEL OVAL feed
> (https://www.redhat.com/security/data/oval/v2/RHEL8/, also check Chapter
> 16 of the RHEL 8 Design Guide). Because I could not find an existing
> OVAL file for CentOS, I downloaded one of the RHEL8 files and managed to
> modify (eg. the rhel-8.1-e4s.oval.xml) it to make it work on a CentOS
> machine. Basically I just had to change the package signing key check to
> use the CentOS key and I had to replace the redhat-release RPM package
> name with "centos-release". Obviously, this would violate all kinds of
> rights if redistributed, due to the fact that the upstream vendor is
> named all over the place, but technically it "worked".
>
> On an internal system running a freshly updated CentOS 8.1 system I
> ended up with three errors, titled:
>
> * RHSA-2019:4269: container-tools:rhel8 security and bug fix update
> (Important)
>
> * RHSA-2019:3403: container-tools:rhel8 security, bug fix, and
> enhancement update (Important)
>
> * RHSA-2019:2799: nginx:1.14 security update (Important)
>
> This raises some questions (some of them connected), namely:
>
> Q1) There are no equivalent CESA advisories for those RHSA advisories:
> why is that? Note that there are also no equivalent CentOS packages to
> those mentioned in the RHSA advisories. (My guess: because, when the
> advisories where issued, Centos already had moved on to 8.2)
>
> Q2) Does this indicate a problem in the release process / handling of
> upstream updates on the side of the CentOS project? Were the advisories
> missed at the time of issuance?
>
> Q3) Does this indicate that only the latest CentOS (minor) release can
> be considered "secure" or "patched"?
>
> Q4) Is there a native OVAL file released from the CentOS project
> covering these issues? It could be extremely similar to the RHEL one,
> but it should take the answers to the above questions into account (eg.
> it could require the latests minor-release and there would only be one
> file for CentOS 8 if the answer to Q3 is "yes").
>
> Q5) If the answer to the last question is "no": shouldn't there be such
> a resource?
>
> Thanks for any answers.
>
> peter
>
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Re: [CentOS] rsync upgrade

[Carl George]

FYI, the IUS rsync31u package is going to be retired (unmaintained) in
about a month.  Upstream confirmed that there will never be another
3.1.x release.

https://github.com/WayneD/rsync/issues/80
https://github.com/iusrepo/announce/issues/23

If there is still value in providing a newer rsync package for EL7 in
IUS, I'd recommend requesting an rsync3 package (now that we know that
upstream doesn't maintain old minor versions) on the wishlist.

https://github.com/iusrepo/wishlist

On Thu, Aug 6, 2020 at 6:11 PM John R. Dennison  wrote:
>
> On Thu, Aug 06, 2020 at 10:40:14AM -0500, Christopher Wensink wrote:
> > Can anyone tell me the repository to use to upgrade to a version of
> > rsync later than 3.1.2?
>
> IUS has 3.1.3 for EL7.  More information available via writeup at
> https://wiki.centos.org/AdditionalResources/Repositories or
> https://ius.io/
>
>
>
>
>
> John
>
> --
>  When a man tells you that he got rich through hard work, ask him: "Whose?"
>
> -- Don Marquis (1878-1937), American humorist, journalist, and author
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Re: [CentOS] C8 - Register with Red Hat

[Carl George]

The subscription-manager dnf plugin is disabled by default as part of
our debranding in both CentOS Linux and CentOS Stream.

c8: 
https://git.centos.org/rpms/subscription-manager/blob/580aca8629536c64577e6a443b9349ecb629cc17/f/SPECS/subscription-manager.spec#_850
c8s: 
https://git.centos.org/rpms/subscription-manager/blob/603dc4a304e237a71a056f674378ff5113a7f710/f/SPECS/subscription-manager.spec#_855

I don't know what caused it to be enabled on your system, but that is
the way it currently ships.

On Mon, Aug 17, 2020 at 6:54 PM Tony Schreiner  wrote:
>
> On Mon, Aug 17, 2020 at 7:37 PM Gregory P. Ennis  wrote:
>
> > On Mon, 17 Aug 2020 17:49:29 -0500
> > Gregory P. Ennis wrote:
> >
> > > What appears is below.
> >
> > Removing dependent packages is required.  Removing unused dependencies is
> > optional.
> >
> > dnf remove *subscription* --noautoremove
> >
> > should remove the dependent packages but keep thee unused dependencies if
> > you want them.
> >
> > There's also a setting in /etc/dnf/dnf.conf to set the default behaviour
> > of the autoremove
> > function.
> >
> > Having said that, I don't have any of those packages in your list on my
> > system and it's
> > working fine.  So removing them (probably) won't break anything.
> > --
> >
> > Frank,
> >
> > Thanks for the help. I used the -noautoremove switch and the following was
> > removed :
> >
> > abrt-2.10.9-11.el8.x86_64
> >
> >   abrt-addon-ccpp-2.10.9-11.el8.x86_64
> >
> >   abrt-addon-kerneloops-2.10.9-11.el8.x86_64
> >
> >   abrt-addon-pstoreoops-2.10.9-11.el8.x86_64
> >
> >   abrt-addon-vmcore-2.10.9-11.el8.x86_64
> >
> >   abrt-addon-xorg-2.10.9-11.el8.x86_64
> >   abrt-cli-2.10.9-11.el8.x86_64
> >   abrt-dbus-2.10.9-11.el8.x86_64
> >   abrt-desktop-2.10.9-11.el8.x86_64
> >   abrt-gui-2.10.9-11.el8.x86_64
> >   abrt-tui-2.10.9-11.el8.x86_64
> >   anaconda-core-29.19.2.17-1.el8.x86_64
> >   anaconda-gui-29.19.2.17-1.el8.x86_64
> >   anaconda-tui-29.19.2.17-1.el8.x86_64
> >   dnf-plugin-subscription-manager-1.26.17-1.el8_2.x86_64
> >   initial-setup-0.3.62.1-1.el8.x86_64
> >   initial-setup-gui-0.3.62.1-1.el8.x86_64
> >   libreport-plugin-ureport-2.9.5-10.el8.x86_64
> >   python3-abrt-2.10.9-11.el8.x86_64
> >   python3-abrt-addon-2.10.9-11.el8.x86_64
> >   python3-subscription-manager-rhsm-1.26.17-1.el8_2.x86_64
> >   subscription-manager-1.26.17-1.el8_2.x86_64
> >   subscription-manager-initial-setup-addon-1.26.17-1.el8_2.x86_64
> >   subscription-manager-rhsm-certificates-1.26.17-1.el8_2.x86_64
> >   virt-who-0.27.6-1.el8.noarch
> >
> > After these were removed the request to register with Red Hat no longer
> > appears with 'dnf
> > update'
> >
> > Thanks again
> >
> > Greg
> >
> >
> You could also just disable the yum subscription-manager plugin by setting
> enabled=0
> in /etc/yum/pluginconf.d/subscription-manager.conf
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Re: [CentOS] C8 - Register with Red Hat

[Carl George]

In addition to subscribing RHEL systems to RHSM or Satellite,
subscription-manager is also used to subscribe CentOS systems to
Foreman+Katello deployments.

https://theforeman.org/plugins/katello/3.16/installation/clients.html
(katello-host-tools requires subscription-manager)
https://theforeman.org/plugins/katello/3.16/user_guide/activation_keys/index.html

On Tue, Aug 25, 2020 at 2:06 PM Tony Schreiner  wrote:
>
> On Tue, Aug 25, 2020 at 2:00 PM Carl George  wrote:
>
> > The subscription-manager dnf plugin is disabled by default as part of
> > our debranding in both CentOS Linux and CentOS Stream.
> >
> > c8:
> > https://git.centos.org/rpms/subscription-manager/blob/580aca8629536c64577e6a443b9349ecb629cc17/f/SPECS/subscription-manager.spec#_850
> > c8s
> > <https://git.centos.org/rpms/subscription-manager/blob/580aca8629536c64577e6a443b9349ecb629cc17/f/SPECS/subscription-manager.spec#_850c8s>:
> >
> > https://git.centos.org/rpms/subscription-manager/blob/603dc4a304e237a71a056f674378ff5113a7f710/f/SPECS/subscription-manager.spec#_855
> >
> > I don't know what caused it to be enabled on your system, but that is
> > the way it currently ships.
> >
> > On Mon, Aug 17, 2020 at 6:54 PM Tony Schreiner 
> > wrote:
> > >
> >
> >
> Sorry if I'm changing topic, But I'm curious, what is the use case for
> subscription-manager in CentOS?
> Tony
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Re: [CentOS] It's been six days since CVD-2021-33909 was patched in RHEL, what's the holdup for Stream 8?

[Carl George]

It's being worked on.  RHEL maintainers can fix things independently
in different minor version branches.  The fix was applied to the
internal 8.4 branch while it was under embargo.  It has since been
released in RHEL 8.4, which allowed it to be rebuilt in CentOS Linux
8.  CentOS Stream 8 is currently tracking the internal 8.5 branch,
which just had the fix merged yesterday, along with many other
changes, as kernel-4.18.0-326.el8.  That build is going through QA
now.  Once completed, it will be exported to git.centos.org and
rebuilt in CentOS Stream 8.  This is the "inside out" process we've
referred to, and we know it's not ideal.  CentOS Stream 9 improves on
this significantly with RHEL maintainers doing their builds directly
in the CentOS project, in the public.

I'll also note this isn't something new.  We've been clear that RHEL
gets some security fixes first.  Typically it's only 1-2 days after
RHEL 8 that we'll have the corresponding fix out for CentOS Linux 8
and CentOS Stream 8.  No one is happy about how much longer this
particular update is taking.  The Stream model brings massive changes
to the RHEL workflows, so no one should be surprised that there are
growing pains.

On Mon, Jul 26, 2021 at 4:02 PM Steven Rosenberg via CentOS
 wrote:
>
> This bug in the kernel was patched in RHEL on 7/20. Every other mainstream 
> Linux distro patched it that day or the day after. That includes Rocky and 
> Alma.
>
> https://access.redhat.com/security/cve/CVE-2021-33909
>
> It's still not patched six days later in CentOS Stream 8.
>
> This Bugzilla entry makes it clear that when it comes to security, CentOS 
> Stream falls behind RHEL. But this far behind?
>
> https://bugzilla.redhat.com/show_bug.cgi?id=1975182
>
> This doesn't make a good argument for Stream being a viable CentOS Linux 
> replacement.
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Re: [CentOS] It's been six days since CVD-2021-33909 was patched in RHEL, what's the holdup for Stream 8?

[Carl George]

kernel-4.18.0-326.el8 is being pushed to the mirrors now.

On Wed, Jul 28, 2021 at 2:42 PM Brian Stinson  wrote:
>
> Carl summarized really well how code moves through RHEL and CentOS
> Stream, and we’re working on making sure we publish a build that has
> made it through the usual set of RHEL tests. -326 is a possible
> candidate here.
> Think about CentOS Stream as the development location for the next-minor
> release of RHEL.  I’d like to highlight some of the general points
> related to this discussion:
> - There are certain classes of CVE that we handle differently from
> normal development work:
> https://centos.org/distro-faq/#q4-how-will-cves-be-handled-in-centos-stream
> <https://centos.org/distro-faq/#q4-how-will-cves-be-handled-in-centos-stream>
> - Since these fixes need to go into RHEL first, getting them into the
> development location (CentOS Stream) represents a separate set of work.
> - Our intent is to get CVE fixes like this into Stream as soon as
> they’re available within the guidelines referenced in the FAQ
> In the past updates have gone out quickly, we haven’t artificially held
> up pushes and we will not do so going forward. We don’t, though, make
> any forecasts or guarantees about turnaround time, this is to make sure
> we deliver those fixes correctly.
> I hope that as we continue rolling out new workflows in CentOS Stream 9,
> we will be able to provide more direct feedback on patch status at a
> source code level. Just as a reminder you can view and participate in
> development happening on Gitlab:
> https://gitlab.com/redhat/centos-stream/
> <https://gitlab.com/redhat/centos-stream/>
> --Brian
>
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[CentOS] Centos 5.2 ISO not available ???!!!!

[Agnello George]

Hi All

this is really wired ... i searched in all mirrors ( i hope )  ... but i
don't seem to find then availability of cent os 5.2  iso .. ... the thing is
all our perl version depen on Cent os 5.2 ...

Does any one know whyCentod 5.2 is not available !! ...

Thanks !! ...

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[CentOS] Invitation to connect on LinkedIn

[Siju George]

LinkedIn


Siju George requested to add you as a connection on LinkedIn:
--

Romeo,

I'd like to add you to my professional network on LinkedIn.

- Siju

Accept invitation from Siju George
http://www.linkedin.com/e/c640Z0zoY42Hba6yQ6iWhZknxFvA/blk/I1536383959_2/pmpxnSRJrSdvj4R5fnhv9ClRsDgZp6lQs6lzoQ5AomZIpn8_cBYVdjAPe3cScPkNiiZjj59SbjgQi2YOdjsUd34OczwLrCBxbOYWrSlI/EML_comm_afe/

View invitation from Siju George
http://www.linkedin.com/e/c640Z0zoY42Hba6yQ6iWhZknxFvA/blk/I1536383959_2/39vejkVcPwPdzcRckALqnpPbOYWrSlI/svi/

--

Why might connecting with Siju George be a good idea?

Siju George's connections could be useful to you:
After accepting Siju George's invitation, check Siju George's connections to 
see who else you may know and who you might want an introduction to. Building 
these connections can create opportunities in the future.

 
--
(c) 2009, LinkedIn Corporation

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[CentOS] Yaz and libyaz package for CentOS 5

[Siju George]

Hi,

Where do I get Yaz and libyaz package for CentOS 5?

thanks

Siju
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Re: [CentOS] Yaz and libyaz package for CentOS 5

[Siju George]

On Mon, Jul 7, 2008 at 10:19 PM, Akemi Yagi <[EMAIL PROTECTED]> wrote:
> On Mon, Jul 7, 2008 at 9:37 AM, Siju George <[EMAIL PROTECTED]> wrote:
>> Hi,
>>
>> Where do I get Yaz and libyaz package for CentOS 5?
>
> Try the EPEL repository.  See
> http://wiki.centos.org/AdditionalResources/Repositories for details
> (near the bottom).
>

Thanks a lot Akemi :-)
I got it working . it was for koha libriary software :-)

kind Regards

Siju
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Re: [CentOS] CentOS 6.2 KS/Installer

[George Mihaiescu]

The virtio disk driver uses "/dev/vda" instead of "sda", give it a try.

-Original Message-
From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of 
Turbo Fredriksson
Sent: Thursday, January 19, 2012 5:47 AM
To: centos@centos.org
Subject: [CentOS] CentOS 6.2 KS/Installer

 I'm using the kickstart file we developed for v5 on 6.2 in VM (kvm/qemu 
 running on a CentOS 5.6),
 but it fails:

Error partitioning. Could not allocate requested partitions: not 
 enough free space on disks.

 There's nothing wrong with the disk. Both fdisk and parted works fine, 
 I can view, partition
 and write a partition table and the disk is 10.5GB.


 However, looking through the logs, it tries to run 'dmsetup info 
 /dev/sda' which fails!

Device /dev/sda not found
Command failed

 The disk setup part looks like this:

zerombr
clearpart --drives=sda --initlabel
part /boot --fstype ext3 --size 200 --ondrive=sda
part swap --recommended --ondrive=sda
part / --fstype ext3 --size 4 --ondrive=sda
part /scratch --fstype ext3 --size 1 --grow --ondrive=sda


 Running without a KS, the GUI works (but I still got the problem with 
 dmsetup in the logs).

 Any ideas?
 --
 ... but you know as soon as Oracle starts waving its wallet at a 
 Company it's time to run - fast.
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[CentOS] 32bit vs 64bit memory usage

[George Negoita]

Hi!

I ran the following test on 3 different setups:

#!/usr/bin/php


...and I got the following results:

32bit kernel & 32bit php - 18875368/19136512
64bit kernel & 64bit php - 35654376/35913728
64bit kernel & 32bit php - 18875368/19136512

Some client has a 64bit xen-based VPS with 512MB RAM user for
webhosting and I'm wondering if I can free some memory installing
httpd&php i386 modules.

I understand that 64bit programs use more memory because the pointers,
integers, etc. are now 64bit instead of 32bit, but running a 32bit
program on a 64bit architecture is the same as running that program on
a 32bit architecture (just concerning the memory used)? At least,
that's my conclusion after running the above test. Am I wrong?

Thank you!

PS: No, the client's service provider does not offer a 32bit vps
platform and the client won't change the provider or pay for
additional memory.

-- 
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System Administrator
iMedia Plus Group
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Re: [CentOS] Cyrus IMAP and ipurge

[Agnello George]

On Wed, Jun 17, 2009 at 7:49 AM, Spiro Harvey  wrote:

> On Tue, 16 Jun 2009 20:53:58 -0500
> Jeff  wrote:
>
> > Can't help much with ipurge. I never did like how it works. I have
> > chosen a different approach using the cyradm mboxconfig command to
> > set the expire option on each mailbox as needed. The 'expire' option
> > is set-it-and-forget-it. Yet this approach lacks managability. There
> > is no quick and easy way to survey all of your user mailboxes to
> > check the expire option settings.
>
> Thanks Jeff. I thought that the expire mboxconfig setting required
> running of the cyr_expire program to trigger it, but I could never
> figure out why it forces you to include the expiry age on the command
> line when the mailbox folders have that info already.
>
>
>
> i too have a similar query  i too need to delet messages older than 3 days
.
in my /etc/cyru.conf i have a entry like this
delprune cmd="cyr_expire -E 3" at=0400
would this mean that the messages in(  /var/spool/imap/a/users/abp/* ) older
than 3 days get deleted ?
thank you !!


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Re: [CentOS] Cyrus IMAP and ipurge

[Agnello George]

On Wed, Jun 17, 2009 at 1:21 PM, Agnello George wrote:

>
>
> On Wed, Jun 17, 2009 at 7:49 AM, Spiro Harvey wrote:
>
>> On Tue, 16 Jun 2009 20:53:58 -0500
>> Jeff  wrote:
>>
>> > Can't help much with ipurge. I never did like how it works. I have
>> > chosen a different approach using the cyradm mboxconfig command to
>> > set the expire option on each mailbox as needed. The 'expire' option
>> > is set-it-and-forget-it. Yet this approach lacks managability. There
>> > is no quick and easy way to survey all of your user mailboxes to
>> > check the expire option settings.
>>
>> Thanks Jeff. I thought that the expire mboxconfig setting required
>> running of the cyr_expire program to trigger it, but I could never
>> figure out why it forces you to include the expiry age on the command
>> line when the mailbox folders have that info already.
>>
>>
>>
>> i too have a similar query  i too need to delet messages older than 3 days
> .
> in my /etc/cyru.conf i have a entry like this
> delprune cmd="cyr_expire -E 3" at=0400
> would this mean that the messages in(  /var/spool/imap/a/users/abp/* )
> older than 3 days get deleted ?
> thank you !!
>
>
> Hi again
now i have even tried  ipurge
the contnet of /usr/lib/cyrus-imapd/ipurge /var/spool/t/user/test123/  ia as
follows
1. 2. 3. 4. 5. 6. 7.
10. 20. 30. 40. 50. 60. 70.
11. 21. 31. 41. 51. 61. 71.
12. 22. 32. 42. 52. 62. 72.
13. 23. 33. 43. 53. 63. 73.
14. 24. 34. 44. 54. 64. 74.
15. 25. 35. 45. 55. 65. 8.
16. 26. 36. 46. 56. 66. 9.
17. 27. 37. 47. 57. 67. cyrus.cache
18. 28. 38. 48. 58. 68. cyrus.header
19. 29. 39. 49. 59. 69. cyrus.index

i tried :
/usr/lib/cyrus-imapd/ipurge -C /etc/imapd.conf -f -d 0
/varspool/imap/t/user/test123/
( i have done this as cyrus user )
but this does not seem to delete the mail box
can some one help me here . !!
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Re: [CentOS] Cyrus IMAP and ipurge

[Agnello George]

On Thu, Jun 18, 2009 at 2:46 AM, Spiro Harvey  wrote:

>
> > > i too have a similar query  i too need to delet messages older than
> > > 3 days
> > .
> > in my /etc/cyru.conf i have a entry like this
> > delprune cmd="cyr_expire -E 3" at=0400
> > would this mean that the messages
> > in(  /var/spool/imap/a/users/abp/* ) older than 3 days get deleted ?
>
> It doesn't seem to (which you could ascertain if you see any messages
> older than 3 days in your mailbox).
>
> I have this option enabled too, so it must only expire messages (or
> folders) marked for expiry. But it clearly doesn't use the "Expire"
> option for mailboxes, because that sets an age separately. So I'm still
> unsure how the pieces in this puzzle are designed to fit together.
>
i was  finally able to purge my old mail using ipurge ...
su cyrus -c "(/usr/lib/cyrus-imapd/ipurge -f -d 7 user.netserv )"
i was trying to do it the wron way before !! . i written a script
and added tp my cron to run every 3 times in a week ,!!
Thanks for all the help !!

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Re: [CentOS] Anaconda-runtime and busybox-anaconda src rpms

[George Negoita]

On Thu, Jul 2, 2009 at 4:45 PM, Chadley Wilson wrote:
> does anyone here know where to get the source rpms for these two packages?
> anaconda-runtime-11.1.2.168-1.el5.centos

anaconda-11.1.2.168-1.el5.centos.src.rpm

> busybox-anaconda-1.2.0-4.el5.centos

busybox-1.2.0-4.el5.centos.src.rpm

You cand download them from here: http://ftp.ines.lug.ro/centos/5.3/os/SRPMS/

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Re: [CentOS] Anaconda-runtime and busybox-anaconda src rpms

[George Negoita]

On Thu, Jul 2, 2009 at 5:12 PM, Chadley Wilson wrote:
> I was a bit quick on the assumption there, I was looking specifically for the 
> anaconda-runtime src.
> But now I see that there isn't specifically a source for the 
> anaconda-runtime, the source for the rpm is anaconda, is that correct?

Yes. By building one source rpm file, you can get multiple packages.
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[CentOS] error --- > any idea ?? Kernel: Additional sense: Invalid command operation code

[Agnello George]

Hi All
My system is CentOS release 4.4 (Final) and for the last few days my system
si getting rebooted ... i really cant find out any reason why ... but on
 the messages found in the var/log/ ...here is what i got .

Aug 10 04:31:34 spam2 kernel: FAILED
Aug 10 04:31:34 spam2 kernel: status = 1, message = 00, host = 0, driver =
08
Aug 10 04:31:34 spam2 kernel: Current sd: sense key Illegal Request
Aug 10 04:31:34 spam2 kernel: Additional sense: Invalid command operation
code
Aug 10 04:31:34 spam2 kernel: FAILED
Aug 10 04:31:34 spam2 kernel: status = 1, message = 00, host = 0, driver =
08
Aug 10 04:31:34 spam2 kernel: Current sd: sense key Illegal Request
Aug 10 04:31:34 spam2 kernel: Additional sense: Invalid command operation
code
Aug 10 04:31:34 spam2 kernel: FAILED
Aug 10 04:31:34 spam2 kernel: status = 1, message = 00, host = 0, driver =
08
Aug 10 04:31:34 spam2 kernel: Current sd: sense key Illegal Request
Aug 10 04:31:34 spam2 kernel: Additional sense: Invalid command operation
code
Aug 10 04:31:34 spam2 kernel: FAILED
Aug 10 04:31:34 spam2 kernel: status = 1, message = 00, host = 0, driver =
08
Aug 10 04:31:34 spam2 kernel: Current sd: sense key Illegal Request
Aug 10 04:31:34 spam2 kernel: Additional sense: Invalid command operation
code
Aug 10 04:31:34 spam2 kernel: FAILED
Aug 10 04:31:34 spam2 kernel: status = 1, message = 00, host = 0, driver =
08
Aug 10 04:31:34 spam2 kernel: Current sd: sense key Illegal Request
Aug 10 04:31:34 spam2 kernel: Additional sense: Invalid command operation
code
Aug 10 04:32:29 spam2 kernel: FAILED
Aug 10 04:32:29 spam2 kernel: status = 1, message = 00, host = 0, driver =
08
Aug 10 04:32:29 spam2 kernel: Current sd: sense key Illegal Request
Aug 10 04:32:29 spam2 kernel: Additional sense: Invalid command operation
code
Aug 10 04:32:29 spam2 kernel: FAILED

Can some one please help me debug this issue . or assist me on what i should
do further .
Thanks
Agnello
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[CentOS] centos 5 reboot diagnosis

[Agnello George]

Hi
 we use cent OS 5.2  on all our production server, just today  one of or
mail server had a reboot and we dont understand why ... usually we  get a
alert if a system was loaded up ... but this system just reboot  may be
it could be a power failure ...( is there any way to check this ) .. but
that is the last optiopn i am guess as the server is in IDC .   With
dmidecode and biosdecode .. i just get server / bios info . In the Messages
and Dmesgs ... i cant really pin pont  the issue .  Is there any thingi am
not doing or any thing i am supposed to  figure out the reson for this
reboot.

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[CentOS] how to ensure systems users strong passwdors enabled

[Agnello George]

how to ensure systems users have   strong passwords enabled

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[CentOS] error on yum install of perl-File-Temp -- Transaction Check Error

[Agnello George]

Hi I am trying to install a per package  perl-File-Temp , but it gives a
error like this , i ahve allso manullay removed this file
from /usr/share/man/man3/File::Temp.3pm.gz , but wen i do a yum
install perl-File-Temp ,it throws me the same error . Has any one come
accross the same issuse and solved the same .
=
 Package Arch Version Repository Size
=
Installing:
 perl-File-Temp noarch 0.22-1.el5.rf rpmforge 46 k

Transaction Summary
=
Install 1 Package(s)
Upgrade 0 Package(s)
:
:
Transaction Check Error:
  file /usr/share/man/man3/File::Temp.3pm.gz from install of
perl-File-Temp-0.22-1.el5.rf.noarch conflicts with file from package
perl-5.8.8-32.el5_5.1.i386

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Re: [CentOS] error on yum install of perl-File-Temp -- Transaction Check Error

[Agnello George]

On Tue, Aug 10, 2010 at 4:27 PM, Scott Robbins  wrote:

> On Tue, Aug 10, 2010 at 06:51:47AM -0400, Scott Robbins wrote:
> > On Tue, Aug 10, 2010 at 03:39:39PM +0530, Agnello George wrote:
> > > Hi I am trying to install a per package  perl-File-Temp , but it gives
> a error
> > > like this , i ahve allso manullay removed this file from
> /usr/share/man/man3/
> > > File::Temp.3pm.gz , but wen i do a yum install perl-File-Temp ,it
> throws me the
> > > same error . Has any one come accross the same issuse and solved the
> same .
> >
> >
> > Yeah, it's a complete pain in the neck.  I've not found a force option
> > with yum, but what I do, for example, in installing RT3, is use
> > yum-downloader, do a download only of the rpmforge package
> > (as in this case) and then do rpm --force -ivh .
>
> Sorry, hit send too soon--I should comment that there is always a risk
> when using the --force option, and you do so at your own risk. However,
> in the caes of perl modules, every conflict that *I've* run into has
> always only been with man pages, and it hasn't caused an issue--for
> me--but pleaes do be careful when using --force.
>
>
>
> --
> Scott Robbins
> PGP keyID EB3467D6
> ( 1B48 077D 66F6 9DB0 FDC2 A409 FA54 EB34 67D6 )
> gpg --keyserver pgp.mit.edu --recv-keys EB3467D6
>
>
> Wesley:  Wait for Faith.
>  Buffy:  That could be hours.  The girl makes Godot look punctual.
> ___
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> http://lists.centos.org/mailman/listinfo/centos
>


well , wasnt getting it done the yum way , it works fine  using cpan .
:)
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[CentOS] best ways to do mysql backup

[Agnello George]

we have multiple servers approx 10   and each has about 100 GB of data in
the /var/lib/mysql dir , excluding tar , mysqldump and replication how do we
take backup for these databases on to a remote machine and store them
datewise , ( the remote machine is a 2TB  HDD )

currently tar  is not feasible as the data is too huge  and  the same goes
with mysqldump

suggestion will be of great help

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[CentOS] how to check the number of thread on apache server

[Agnello George]

how to check the number of thread  on my   Apache server  ,  is there a
specific command , and how do i increase these threads ..

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[CentOS] tools one could to use to troubleshoot for Apache

[Agnello George]

Have a question , Suppose i had a client tell me that  he can access the web
page but it takes long time to view  the pages   the website is a static
website ( suppose this website does not server dynamic data  or does not
connect to a database )... what would one check other than :

the server load  ( cat /proc/loadaverage )  ,

 the Apache logs  ,

 the number of client connection ( netstat -tupln |grep :80 |wc -l )

--

how would i know if it a client side  issue or a server side issue 

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[CentOS] Kernel panic - not syncing: Attempted to kill init!

[Agnello George]

I am writing a small documentation on reason(s) :
 why  kernel panic happen !!and
 possible (crisp)   solution(s)

googling out this error throws me very hazy solutions .. if some one could
suggest the possible reasons and  crispy solution  it would be of great
documentation help to many .

one great link i found was this (
http://www.linuxquestions.org/questions/linux-software-2/explained-kernel-panic-not-syncing-attempted-to-kill-
init-353920/)

 Thanks

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[CentOS] upgrade python to python2.6.4 using yum

[Agnello George]

Hi

How would i upgrade python to python2.6.4 using a yum repository ( on all my
servers ) and cause manual configuration is time consuming, i am using cent
OS 5.4 32 bit

Is there an already available repository to do this.?

--

I had tried to install it using contemporary method ( ./configure ; make
;make install) .. but i get the following error when trying to upgrade .

make
:
:
:
ar cr libpython2.6.a Modules/threadmodule.o  Modules/signalmodule.o
Modules/posixmodule.o  Modules/errnomodule.o  Modules/pwdmodule.o
Modules/_sre.o  Modules/_codecsmodule.o  Modules/zipimport.o
Modules/symtablemodule.o  Modules/xxsubtype.o
ranlib libpython2.6.a
gcc -pthread  -Xlinker -export-dynamic -o python \
Modules/python.o \
libpython2.6.a -lpthread -ldl  -lutil   -lm
libpython2.6.a(posixmodule.o): In function `posix_tmpnam':
/tmp/Python-2.6.4/./Modules/posixmodule.c:7180: warning: the use of
`tmpnam_r' is dangerous, better use `mkstemp'
libpython2.6.a(posixmodule.o): In function `posix_tempnam':
/tmp/Python-2.6.4/./Modules/posixmodule.c:7135: warning: the use of
`tempnam' is dangerous, better use `mkstemp'
running build
running build_ext

Failed to find the necessary bits to build these modules:
bsddb185   sunaudiodev
To find the necessary bits, look in setup.py in detect_modules() for the
module's name.

running build_scripts

=

any reference / tips will be of great help




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Re: [CentOS] upgrade python to python2.6.4 using yum

[Agnello George]

On Tue, Oct 5, 2010 at 3:18 PM, John Doe  wrote:

> From: Agnello George 
> >How would i upgrade python to python2.6.4 using a yum repository ( on all
> my
> >servers ) and cause manual configuration is time consuming, i am using
> cent OS
> >5.4 32 bit
> >Is there an already available repository to do this.?
>
> Google says by example:
> http://chrislea.com/2009/09/09/easy-python-2-6-django-on-centos-5/
>
> JD
>
>
>
> ___
>
>


I did a yum install gcc* , then it installed all the required dependencies .


Then make and make install worked correctly .

Then i had to symbolically link it .

ln -s /usr/local/bin/python2.6 /usr/bin/python




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Re: [CentOS] upgrade python to python2.6.4 using yum

[Agnello George]

On Tue, Oct 5, 2010 at 3:54 PM, John R. Dennison  wrote:

> On Tue, Oct 05, 2010 at 03:46:12PM +0530, Agnello George wrote:
> >
> > I did a yum install gcc* , then it installed all the required
> dependencies .
> >
> > Then make and make install worked correctly .
> >
> > Then i had to symbolically link it .
> >
> > ln -s /usr/local/bin/python2.6 /usr/bin/python
>
> That's the worst possible "solution" you could have applied.
>
>The system is completely dependent on the version of python
>supplied with it (2.4.3) and by replacing it with 2.6 you
>have effectively broken large parts of it.
>
>Why not just go with the version is EPEL that has been
>previously recommended in this thread?  It installs
>side-by-side with the system supplied python and as such
>doesn't break anything.
>
>There is the added bonus that the EPEL supplied python will
>actually get updated.
>
>
>
>
Ok ,  I think I will go with the EPEL :)

i had done the installation on VM test machine ..

Thanks for all the help



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[CentOS] Preserving LVM after after os reload

[Sherin George]

Hi guys,

I have two disks, one with OS and a second disk containing an LVM.  I
would like to OS reload the server without losing LVM.

I heard that LVM is self sustaining. Is that true ? Should I backup
something(using vgcfgbackup &  vgexport ?)  to get LVM running after
os reload.

Thanks in advance.

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Re: [CentOS] Preserving LVM after after os reload

[Sherin George]

Thanks Nux :)
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[CentOS] install older version of glibc package

[Sherin George]

Hello Guys,

Recently, I have installed some custom packaged of glibc in servers I
manage due to vulnerabilities. At that time, official centos packages
were not available. Now, I want to roll back to centos versions.


=
-bash-3.2# yum info glibc
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * addons: yum.singlehop.com
 * base: yum.singlehop.com
 * extras: mirrors.netdna.com
 * rpmforge: apt.sw.be
 * updates: yum.singlehop.com
Installed Packages
Name   : glibc
Arch   : i386
Version: 2.5
Release: 49.1
Size   : 22 M
Repo   : installed
Summary: The GNU libc libraries.
License: LGPL
Description: The glibc package contains standard libraries which are used by
   : multiple programs on the system. In order to save disk space and
   : memory, as well as to make upgrading easier, common system code is
   : kept in one place and shared between programs. This
particular package
   : contains the most important sets of shared libraries: the
standard C
   : library and the standard math library. Without these two
libraries, a
   : Linux system will not function.

Name   : glibc
Arch   : x86_64
Version: 2.5
Release: 49.1
Size   : 26 M
Repo   : installed
Summary: The GNU libc libraries.
License: LGPL
Description: The glibc package contains standard libraries which are used by
   : multiple programs on the system. In order to save disk space and
   : memory, as well as to make upgrading easier, common system code is
   : kept in one place and shared between programs. This
particular package
   : contains the most important sets of shared libraries: the
standard C
   : library and the standard math library. Without these two
libraries, a
   : Linux system will not function.

Available Packages
Name   : glibc
Arch   : i686
Version: 2.5
Release: 49.el5_5.6
Size   : 5.3 M
Repo   : updates
Summary: The GNU libc libraries.
License: LGPL
Description: The glibc package contains standard libraries which are used by
   : multiple programs on the system. In order to save disk space and
   : memory, as well as to make upgrading easier, common system code is
   : kept in one place and shared between programs. This
particular package
   : contains the most important sets of shared libraries: the
standard C
   : library and the standard math library. Without these two
libraries, a
   : Linux system will not function.
=


I tried a lot of options. "yum downgrade" is attempting to remove lot
of packages which I can't afford. Yum install is hitting dependency
errors.

Is there a way out ? Thanks in advance for any help/advice any one could offer.

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Re: [CentOS] install older version of glibc package

[Sherin George]

well... I found a solution myself

here is the solution I found, if anyone else is also there in my situation.

Download the centos rpms and install them as given below.

===
rpm -Uvh glibc-2.5-49.el5_5.6.i386.rpm glibc-2.5-49.el5_5.6.x86_64.rpm
glibc-common-2.5-49.el5_5.6.x86_64.rpm  --replacefiles  --oldpackage
===

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Re: [CentOS] install older version of glibc package

[Sherin George]

Thanks you so much Peter.

I thought it is fixed in latest centos rpm.

I got "custom packaged of glibc" from a third party(which I know as
reliable) site.

Do you have any information about availability of a patched replacement at
this time?

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Re: [CentOS] install older version of glibc package

[Sherin George]

RHEL has released patched RPMS.

http://rhn.redhat.com/errata/RHSA-2010-0793.html

Patiently waiting for centos RPMs :)
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[CentOS] file conflict while installing phonon-backend-gstreamer for Amarok

[Agnello George]

Hi

I am trying to install phonon-backend-gstreamer so that i can play mp3 songs
through Amarok as per the following forum (
http://forums.fedoraforum.org/showthread.php?t=205019 )  , but i get the
following dependency error . how can i solve this  your inputs will be of
great value  i am using Fedora 9 .

--
:
:
Total download size: 254 k
Is this ok [y/N]: y
Downloading Packages:
(1/2): phonon-4.3.1-2.fc9.i386.rpm   | 152 kB 00:05
(2/2): phonon-backend-gstreamer-4.3.1-2.fc9.i386.rpm | 102 kB 00:02
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test


Transaction Check Error:
  file /usr/lib/libphonon.so.4 from install of phonon-4.3.1-2.fc9.i386
conflicts with file from package kdelibs-4.0.3-7.fc9.i386
  file /usr/lib/libphononexperimental.so.4 from install of
phonon-4.3.1-2.fc9.i386 conflicts with file from package
kdelibs-4.0.3-7.fc9.i386
  file /usr/share/dbus-1/interfaces/org.kde.Phonon.AudioOutput.xml from
install of phonon-4.3.1-2.fc9.i386 conflicts with file from package
kdelibs-4.0.3-7.fc9.i386

Error Summary
-

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[CentOS] display issue after installing centos 5.5 on hp probook 4420s

[Agnello George]

HI

I was just assigned a laptop with a pre install windows 7 in it. I decide to
dual boot this server with cent os 5.5 , i did a "linux text " at the boot
prompt as anaconda was not able to display the graphis screen ( it was
barely viable ) . The installation happened perfect , but when i start x
windows " startx" or init3 , i can barely see the display. I dont know where
the issue lies , what module do i need to load .The display is barely
visible .

Thanks for all the help !!

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Re: [CentOS] display issue after installing centos 5.5 on hp probook 4420s

[Agnello George]

On Wed, Dec 8, 2010 at 3:43 AM, Keith Roberts  wrote:

> On Wed, 8 Dec 2010, Agnello George wrote:
>
> > To: CentOS mailing list 
> > From: Agnello George 
> > Subject: [CentOS] display issue after installing centos 5.5 on hp probook
> > 4420s
> >
> > HI
> >
> > I was just assigned a laptop with a pre install windows 7 in it. I decide
> to
> > dual boot this server with cent os 5.5 , i did a "linux text " at the
> boot
> > prompt as anaconda was not able to display the graphis screen ( it was
> > barely viable ) . The installation happened perfect , but when i start x
> > windows " startx" or init3 , i can barely see the display. I dont know
> where
> > the issue lies , what module do i need to load .The display is barely
> > visible .
> >
> > Thanks for all the help !!
>
> Are you running on the mains charger?
>
> Is there some sort of key configuration on your laptop to
> adjust the brightness of the display?
>
> Kind Regards,
>



I tried that but it didnt work ..

..i was able to successfully install fedora 9 (after booting it 4 times )
..humm , but was not able to detect the sound card  and the wireless card .


the graphics card is Intel HD Graphics



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[CentOS] installing windows 2008 server( VM) on a centos xen server

[Agnello George]

 hi

I have a xen cent os (Dom0) .. i want to add a vm ( windows 2008 server ) ,
since i am using command line how do i see  the  the windows machine. boot
?? .. i am really confused here .
I have previous iinstalled centos ( VM)  , but that was command line based .


Can some one please direct me on this

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Re: [CentOS] installing windows 2008 server( VM) on a centos xen server

[Agnello George]

On Mon, Jan 3, 2011 at 8:14 PM, Gabriel  wrote:

>  You can install virt-manager on the centos box, and then use it via ssh,
> for example
>
>
>
> ssh –X u...@centoshost.com
>
>
>
> Then on the command line, run virt-manager, (you may need to install xauth
> as well, but it works a charm)
>
>
>
>

well i am not given permission to install GUI for the centos (dom0)  :(


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Re: [CentOS] installing windows 2008 server( VM) on a centos xenserver

[Agnello George]

On Mon, Jan 3, 2011 at 8:20 PM, Gabriel  wrote:

>  You won’t be installing GUI! Trust me,  yum install virt-manager xauth –
> Those are the only packages that will be installed, (plus any required
> support packages, which are minimal)
>
>
>
> Then via your SSH session, you get the gui running on **your** local X
> server – not the remote server. Awesome for remote admin of servers, and
> also compressed via ssh, and most of my colo servers prioritise ssh traffic,
> so very good connections, even if your servers are being hammered for
> traffic. Win win J
>
>
>
>

well its  a bit sad but my laptop is a win 7 ... is there any windows
client  i could use to connect to the remote xen server . OR is there any
other way if my laptop is win7 or xp .

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Re: [CentOS] installing windows 2008 server( VM) on a centosxenserver

[Agnello George]

On Mon, Jan 3, 2011 at 9:11 PM, Gabriel  wrote:

>  Google xlaunch for windows – run that baby, with the same ssh command,
> and it’ll work the same. A good ssh client for windows is Bitvise Tunnilier
> (I may have spelt it wrong, but google will help you out with that!)
>
>
>
>

ok here is my problem


mylaptp --> cent os xenserver ( Dom0 ) ---> Win2008 ( DomU )

myLaptop ---via putty / Bitvise Tunnilier can connect to --->  cent os
xen server ( Dom0 ) . need to connect to DomU --> Win2008





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[CentOS] how to access external USB drive in single user mode

[Agnello George]

how to access external USB drive in single user mode

Thanks

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[CentOS] liblber-2.3.so.0 is needed by (installed ) ............ on cent os 5.2

[Agnello George]

Hi

I am trying to upgrde  out openldap ver 2.3  to the lastest version
2.4, howevre there is no rpm avaibale for 2.4 so i decide to create my
own for centOS flavour 5.2

here is the  part look of my spec file openldap.spec

Summary: openldap Installer
Name: openldap
Version: 2.4
Release: 1
Vendor: net Solutions
License: Commercial
Group: ms6
BuildRoot: /usr/src/redhat/BUILD/openldap
Provides: openldap
AutoReq: no
AutoReqProv: no



%description
This package contains the F-PROT Antivirus for Linux.


%files

/bin/
/bin/ldapexop
/bin/ldapmodify
/bin/ldappasswd
/bin/ldapadd
/bin/ldapmodrdn
/bin/ldapdelete
/bin/ldapsearch
/bin/ldapcompare
/bin/ldapwhoami
/etc/openldap/
/etc/openldap/ldap.conf.default
/etc/openldap/ldap.conf
/usr/include/
/usr/include/lber_types.h
/usr/include/ldap_schema.h
/usr/include/ldap_features.h
/usr/include/ldap_cdefs.h
/usr/include/lber.h
/usr/include/ldap.h
/usr/include/slapi-plugin.h
/usr/include/ldap_utf8.h
/lib/
/lib/liblber-2.4.so.2
/lib/liblber.la
/lib/libldap_r-2.4.so.2.1.0
/lib/libldap_r-2.4.so.2
/lib/libldap_r.so
/lib/libldap_r.a
/lib/libldap_r.la
/lib/liblber.so
/lib/liblber.a
/lib/libldap.so
/lib/libldap-2.4.so.2
/lib/liblber-2.4.so.2.1.0
/lib/libldap.a
/lib/libldap-2.4.so.2.1.0
/lib/libldap.la
.

.

/usr/share/man/man5/slapd-sock.5
/usr/share/man/man5/slapd.access.5
/usr/share/man/man5/slapd-relay.5
/usr/share/man/man5/slapd-meta.5
/usr/share/man/man5/slapo-syncprov.5
/usr/share/man/man5/slapd-hdb.5
/usr/share/man/man5/slapo-rwm.5
/usr/share/man/man5/slapd.plugin.5
/usr/share/man/man5/ldif.5
/usr/share/man/man5/slapd-monitor.5
/usr/share/man/man5/slapd-perl.5
%defattr(-, root, root)

%post
cd /lib
ln -s libldap_r-2.4.so.2 libldap_r-2.4.so.2.1.0
ln -s libldap_r.so libldap_r-2.4.so.2.1.0
ln -s liblber.so liblber-2.4.so.2.1.0
ln -s libldap.so libldap-2.4.so.2.1.0
ln -s libldap-2.4.so.2 libldap-2.4.so.2.1.0

it runs perfecetly and creates the RPM for me in
/usr/src/redhat/RPMS/i386/openldap-2.4-1.i386.rpm

however when i try  to upgards the rpm it give me dependencies 

[r...@pune openldap]# rpm -Uvh /usr/src/redhat/RPMS/i386/openldap-2.4-1.i386.rpm
error: Failed dependencies:
  liblber-2.3.so.0 is needed by (installed) apr-util-1.2.7-6.i386
  liblber-2.3.so.0 is needed by (installed) openldap-devel-2.3.27-5.i386
  liblber-2.3.so.0 is needed by (installed) httpd-2.2.3-6.el5.centos.1.i386
  liblber-2.3.so.0 is needed by (installed) cyrus-sasl-2.1.22-4.i386
  liblber-2.3.so.0 is needed by (installed) nss_ldap-253-3.i386
  liblber-2.3.so.0 is needed by (installed) php-ldap-5.1.6-5.el5.i386
  liblber-2.3.so.0 is needed by (installed) openldap-clients-2.3.27-5.i386
  liblber-2.3.so.0 is needed by (installed)
postfix-2.5.5-1.cdb.pcre.sasl2.spf.rhel5.i386
  liblber-2.3.so.0 is needed by (installed) cyrus-imapd-2.3.13-4.i386
  liblber-2.3.so.0 is needed by (installed) mod_perl-2.0.2-6.1.i386
  liblber-2.3.so.0 is needed by (installed) squid-2.6.STABLE6-4.i386
  libldap-2.3.so.0 is needed by (installed) libuser-0.54.7-2.el5.1.i386
  libldap-2.3.so.0 is needed by (installed) apr-util-1.2.7-6.i386
  libldap-2.3.so.0 is needed by (installed) openldap-devel-2.3.27-5.i386
  libldap-2.3.so.0 is needed by (installed) httpd-2.2.3-6.el5.centos.1.i386
  libldap-2.3.so.0 is needed by (installed) cyrus-sasl-2.1.22-4.i386
  libldap-2.3.so.0 is needed by (installed) sudo-1.6.8p12-10.i386

 these modules are already present in the  lib directory
.../lib/liblber-2.3.so.0 .

Can some one help me with this error

Thnsk a million

-

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Re: [CentOS] liblber-2.3.so.0 is needed by (installed ) ............ on cent os 5.2

[Agnello George]

On Mon, Mar 2, 2009 at 6:23 PM, Ignacio Vazquez-Abrams
 wrote:
> On Mon, 2009-03-02 at 18:14 +0530, Agnello George wrote:
>> here is the  part look of my spec file openldap.spec
>
> Take what you have here, and scrap it.
>
> Grab the openldap SRPM already in CentOS, extract the spec file from it,
> modify, and buils.
>

I was trying to find the src  rpm for openldap 2.4 but couldnt find,
I downloaded the  following src rpm
http://isoredirect.centos.org/centos/5.2/os/SRPMS/openldap-2.3.27-8.el5_1.3.src.rpm

i extracted the spec file but I am not very good at editing a
extensively created  spec file

ther are alot of patches etc in the ../SOURCE/ dir .

can some one help me out here !!


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Re: [CentOS] liblber-2.3.so.0 is needed by (installed ) ............ on cent os 5.2

[Agnello George]

On Mon, Mar 2, 2009 at 7:17 PM, Jim Perrin  wrote:
> On Mon, Mar 2, 2009 at 7:44 AM, Agnello George  
> wrote:
>> Hi
>>
>> I am trying to upgrde  out openldap ver 2.3  to the lastest version
>> 2.4, howevre there is no rpm avaibale for 2.4 so i decide to create my
>> own for centOS flavour 5.2
>
>
> It's probably worth mentioning that the openldap version shipped with
> centos is very heavily linked throughout the distribution. If you
> upgrade the ldap version, you may have to provide older libraries for
> backwards compatibility (as the base package does) or you'll have to
> rebuild everything built against openldap against your new version.

[solved]

You were rith about the  backwards compatibility issue , the older
libraries would be liblber-2.3.so.0 and libldap-2.3.so.0   .

i was chking out the cent os dev  maillist archives for this
particular issue and foud that Jeff Sheltren created  the src rpm
the link here http://staff.osuosl.org/~jeff/openldap/

i jsut did a rpmbulid again the created spec file and it creates  rpm
called compat-openldap-2.4.11_2.3.27-1.3.el5.i386.rpm that does the
magic :-D

less compat-openldap-2.4.11_2.3.27-1.3.el5.i386.rpm

lrwxr-xr-x1 rootroot   21 Mar  2 19:41
/usr/lib/liblber-2.3.so.0 -> liblber-2.3.so.0.2.15
-rwxr-xr-x1 rootroot   137508 Mar  2 19:41
/usr/lib/liblber-2.3.so.0.2.15
lrwxr-xr-x1 rootroot   21 Mar  2 19:41
/usr/lib/libldap-2.3.so.0 -> libldap-2.3.so.0.2.15
-rwxr-xr-x1 rootroot   757630 Mar  2 19:41
/usr/lib/libldap-2.3.so.0.2.15
lrwxr-xr-x1 rootroot   23 Mar  2 19:41
/usr/lib/libldap_r-2.3.so.0 -> libldap_r-2.3.so.0.2.
15
-rwxr-xr-x1 rootroot   827929 Mar  2 19:41
/usr/lib/libldap_r-2.3.so.0.2.15
.
.
.

Thanks again for all the help

Agnello
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[CentOS] openldap 2.4.11 ......unable to start on reboot

[Agnello George]

Hi

I had upgraed my opneldap rpm frm 2.3.27 to 2.4.11 with ehelp of the
followng link http://staff.osuosl.org/~jeff/openldap/

I had then rebooted my machine and now whne i am starting ldap

[r...@system-test40 ldap]# /etc/init.d/ldap start
Checking configuration files for slapd:  bdb_db_open: database
"o=netserv_ldap": unclean shutdown detected; attempting recovery.
bdb_db_open: database "o=netserv_ldap": recovery skipped in read-only
mode. Run manual recovery if errors are encountered.
ch_calloc of 1 elems of 48004 bytes failed
slaptest: ../../../servers/slapd/ch_malloc.c:107: ch_calloc: Assertion
`0' failed.

i tried to do some recovery as mentioned in vairous archives :

cd /var/lib/ldap
slapd_db_recover -v

but it still not able to restart
it give me the same error


[r...@system-test40 ldap]# /etc/init.d/ldap restart
Stopping slapd:[FAILED]
Checking configuration files for slapd:  bdb_db_open: database
"o=netserv_ldap": unclean shutdown detected; attempting recovery.
bdb_db_open: database "o=netserv_ldap": recovery skipped in read-only
mode. Run manual recovery if errors are encountered.
ch_calloc of 1 elems of 48004 bytes failed
slaptest: ../../../servers/slapd/ch_malloc.c:107: ch_calloc: Assertion
`0' failed.
   [  OK  ]
Starting slapd:[  OK  ]


[r...@system-test40 ldap]# /etc/init.d/ldap status
slapd is stopped


has any one encounterd the same issue .

thanks for all the help !!


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Re: [CentOS] Help setting up multipathing on CentOS 4.7 to an Equallogic iSCSI target

[George Negoita]

Hello,

On Fri, Mar 13, 2009 at 5:36 PM, James Pearson
 wrote:
> I'm trying to test out an Equallogic PS5500 with a server running CentOS 4.7

Try reading this:
http://linfrastructure.blogspot.com/2008/02/multipath-and-equallogic-iscsi.html
http://lists.centos.org/pipermail/centos/2008-June/059358.html
http://www.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5.2/html/DM_Multipath/index.html
http://kbase.redhat.com/faq/docs/DOC-2877

This is what helped me understand how to setup dm-multipath on centos
5 using iet iscsi target.

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Re: [CentOS] libpng and Kernel updates

[George Negoita]

2009/3/17 Russ Lavoy :
>
> I noticed that CentOS 5.2 does not have the following updates listed in the 
> repository.
>
> https://rhn.redhat.com/errata/RHSA-2009-0264.html
> https://rhn.redhat.com/errata/RHSA-2009-0333.html
>
> Is this something that is coming soon?

They should come in CentOS 5.3


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Re: [CentOS] rpmnew puzzles

[George Negoita]

On Thu, Apr 9, 2009 at 3:39 PM, Anne Wilson  wrote:
> I'm puzzled by such statements as
>
> diff /var/clamav/daily.cvd /var/clamav/daily.cvd.rpmnew
> Binary files /var/clamav/daily.cvd and /var/clamav/daily.cvd.rpmnew differ
>
> I thought the point of rpmnew files was so that we could check what has been
> changed?

You can check to see what has been changed, since you have both
versions, but you should use a tool that can compare binary files (if
that makes any sense to you).

In your case, you can safely delete daily.cvd.rpmnew, because, most
probable, freshclam already updated daily.cvd to a newer version.

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[CentOS] tool for packet detection

[Agnello George]

Hi
I have small query, all our server are centos based 5 and 5.2 . We are
looking ofr a tool to that measure packet loss. we have servers in two IDC's
bothin the US  and we are trying  to download a 2gb file from the internet.
Some server are able to download the file at a higher  b/w rate in one IDC
...while servers at he the other  IDC download the same file at a lowe b/w
rate . Is ther any tool to measure packet losses.
Thanks a lot  !

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[CentOS] openldap 5.1 crashing

[Agnello George]

Hi
 One of our server opneldap seems to crash ...  following is info about my
ldap.
nss_ldap-253-3
php-ldap-5.1.6-5.el5
openldap-2.4.11-1.3.el5
openldap-servers-2.4.11-1.3.el5
compat-openldap-2.4.11_2.3.27-1.3.el5
openldap-clients-2.4.11-1.3.el5
openldap-devel-2.4.11-1.3.el5
And m getting error on command slapcat
[root@ ldap]# slapcat
bdb_db_open: DB_CONFIG for suffix "o=nerv_ldap" has changed.
Performing database recovery to activate new settings.
bdb_db_open: database "o=nerv_ldap": recovery skipped in read-only mode. Run
manual recovery if errors are encountered.
bdb(o=nerv_ldap): Logging region out of memory; you may need to increase its
size
bdb_db_open: database "o=nerv_ldap": db_open(/var/lib/ldap/id2entry.bdb)
failed: Cannot allocate memory (12).
backend_startup_one: bi_db_open failed! (12)
slap_startup failed
has any one faced any similar issue !! .
Thanks a million


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[CentOS] Is it safe to run tune2fs -c -1 -i 0 /dev/sda2 on mounted file system

[Sherin George]

Hi,

Is it safe to run tune2fs -c -1 -i 0 /dev/sda2  on mounted file system

Basically, this is a command to disable fsck based on reboot count &
last fsck time.

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[CentOS] No buffer space available - loses network connectivity

[Sherin George]

Hi,

I have a centos 5.6 xen vps which loses network connectivity once in a
while with following error.

=
-bash-3.2# ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
ping: sendmsg: No buffer space available
ping: sendmsg: No buffer space available
ping: sendmsg: No buffer space available
ping: sendmsg: No buffer space available
=

All my investigation so far led me to believe that it is because
skbuff cache getting full.

=

PROC-SLABINFO
skbuff_fclone_cache22730851271 : tunables   54
278 : slabdata 44 44  0
skbuff_head_cache   1574   1650256   151 : tunables  120   60
  8 : slabdata110110  0

SLAB-TOP
 Active / Total Objects (% used): 2140910 / 2200115 (97.3%)
 Active / Total Slabs (% used)  : 139160 / 139182 (100.0%)
 Active / Total Caches (% used) : 88 / 136 (64.7%)
 Active / Total Size (% used)   : 512788.94K / 520252.14K (98.6%)
 Minimum / Average / Maximum Object : 0.02K / 0.24K / 128.00K

  OBJS ACTIVE  USE OBJ SIZE  SLABS OBJ/SLAB CACHE SIZE NAME
664000 620290  93%0.09K  16600   40 66400K buffer_head
409950 408396  99%0.21K  22775   18 91100K dentry_cache
343056 340307  99%0.08K   7147   48 28588K selinux_inode_security
338590 336756  99%0.74K  677185270872K ext3_inode_cache
143665 143363  99%0.06K   2435   59  9740K size-64
 99540  99407  99%0.25K   6636   15 26544K size-256
 96450  96447  99%0.12K   3215   30 12860K size-128
 60858  60858 100%0.52K   86947 34776K radix_tree_node
 12420  11088  89%0.16K540   23  2160K vm_area_struct
  5895   4185  70%0.25K393   15  1572K filp
  4816   3355  69%0.03K 43  112   172K size-32
  2904   2810  96%0.09K 66   44   264K sysfs_dir_cache
  2058   1937  94%0.58K3436  1372K proc_inode_cache
  1728   1215  70%0.02K 12  14448K anon_vma
  1650   1590  96%0.25K110   15   440K skbuff_head_cache
  1498   1493  99%2.00K7492  2996K size-2048
  1050   1032  98%0.55K1507   600K inode_cache
   792767  96%1.00K1984   792K size-1024
   649298  45%0.06K 11   5944K pid
   600227  37%0.09K 15   4060K journal_head
   590298  50%0.06K 10   5940K delayacct_cache
   496424  85%0.50K 628   248K size-512
   413156  37%0.06K  7   5928K fs_cache
   404 44  10%0.02K  2  202 8K biovec-1
   390293  75%0.12K 13   3052K bio
   327327 100%4.00K3271  1308K size-4096
   320190  59%0.38K 32   10   128K ip_dst_cache
   308227  73%0.50K 447   176K skbuff_fclone_cache
   258247  95%0.62K 436   172K sock_inode_cache
   254254 100%1.84K1272   508K task_struct
   252225  89%0.81K 289   224K signal_cache
   240203  84%0.73K 485   192K shmem_inode_cache
   204204 100%2.06K 683   544K sighand_cache
   202  4   1%0.02K  1  202 4K revoke_table
   195194  99%0.75K 395   156K UDP
   159 77  48%0.07K  3   5312K eventpoll_pwq
   145139  95%0.75K 295   116K files_cache
   144 41  28%0.02K  1  144 4K journal_handle
   140140 100%0.88K 354   140K mm_struct
   140 77  55%0.19K  7   2028K eventpoll_epi
   135135 100%2.12K1351   540K kmem_cache
   121 45  37%0.69K 11   1188K UNIX
   119114  95%0.52K 17768K idr_layer_cache
   118 41  34%0.06K  2   59 8K blkdev_ioc
   112 32  28%0.03K  1  112 4K tcp_bind_bucket
   110 56  50%0.17K  5   2220K file_lock_cache
   106 35  33%0.07K  2   53 8K avc_node
   105 98  93%1.50K 215   168K TCP
   105100  95%1.04K 157   120K bio_map_info
92  1   1%0.04K  1   92 4K dnotify_cache
80 18  22%0.19K  4   2016K tw_sock_TCP
70 44  62%0.27K  5   1420K blkdev_requests
59 23  38%0.06K  1   59 4K biovec-4
59 13  22%0.06K  1   59 4K fib6_nodes
59 11  18%0.06K  1   59 4K ip_fib_hash
59 11  18%0.06K  1   59 4K ip_fib_alias
53 53 100%0.07K  1

[CentOS] Backup solution to backup /var/spool/imap above 150GB data

[Agnello George]

Hi

We have  an issue with one of our clients , they have a mail server with
the  /var/spool/imap partition as 150 GB . They need to take differential
backup on to /backup partition ( a different HDD  of total 250 GB space )  .
We have tried dar , rsync, rdiff and impasync . But its is not sufficing the
need as to take a lot of time and consumes a lot of I/O .

Is there any back up solution that you can think of , that can work in this
situation  - open source or proprietary

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Re: [CentOS] Backup solution to backup /var/spool/imap above 150GB data

[Agnello George]

On Wed, Feb 24, 2010 at 3:08 PM, David Hrbáč  wrote:

> Dne 24.2.2010 10:00, Agnello George napsal(a):
> > Hi
> >
> > We have  an issue with one of our clients , they have a mail server with
> > the  /var/spool/imap partition as 150 GB . They need to take differential
> > backup on to /backup partition ( a different HDD  of total 250 GB space )
>  .
> > We have tried dar , rsync, rdiff and impasync . But its is not sufficing
> the
> > need as to take a lot of time and consumes a lot of I/O .
> >
> > Is there any back up solution that you can think of , that can work in
> this
> > situation  - open source or proprietary
>
> Is seems to me, that you are using mbox format. So, differential backup
> is hard to achieve. Migrate to maildir, every mail is a file, easy to
> backup differentially.
> David
>
backup directory structure is /var/spool/imap/a /adomain.com/a/agnello^dsouza/



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Re: [CentOS] Backup solution to backup /var/spool/imap above 150GB data

[Agnello George]

2010/2/24 Eero Volotinen 

> 2010/2/24 Agnello George :
> >
> >
> > On Wed, Feb 24, 2010 at 3:08 PM, David Hrbáč 
> wrote:
> >>
> >> Dne 24.2.2010 10:00, Agnello George napsal(a):
> >> > Hi
> >> >
> >> > We have  an issue with one of our clients , they have a mail server
> with
> >> > the  /var/spool/imap partition as 150 GB . They need to take
> >> > differential
> >> > backup on to /backup partition ( a different HDD  of total 250 GB
> space
> >> > )  .
> >> > We have tried dar , rsync, rdiff and impasync . But its is not
> sufficing
> >> > the
> >> > need as to take a lot of time and consumes a lot of I/O .
> >> >
> >> > Is there any back up solution that you can think of , that can work in
> >> > this
> >> > situation  - open source or proprietary
> >>
> >> Is seems to me, that you are using mbox format. So, differential backup
> >> is hard to achieve. Migrate to maildir, every mail is a file, easy to
> >> backup differentially.
> >> David
> >
> > backup directory structure is /var/spool/imap/a
> > /adomain.com/a/agnello^dsouza/
> >
>
> Well, does that directory contains one file or lot of files ?
>
> Usually maildir structure is like dir++/tmp/current/new directories
> and each message is in own file on mailbox all files are inside one
> file.
>
> its in a maildir format and the structure slightly   different from what i
mentioned earlier :
r...@server1 ~]# ls -la /var/spool/imap/a/user/ajay/
total 5180
-rw--- 1 cyrus mail 34616 Feb 24 16:02 4790.
-rw--- 1 cyrus mail 4490 Feb 24 16:03 4791.
-rw--- 1 cyrus mail 199253 Feb 24 16:07 4792.
-rw--- 1 cyrus mail 22930 Feb 24 16:09 4793.
-rw--- 1 cyrus mail 8485 Feb 24 16:11 4794.
-rw--- 1 cyrus mail 12664 Feb 24 16:13 4795.
-rw--- 1 cyrus mail 4296 Feb 24 16:13 4796.
-rw--- 1 cyrus mail 5337 Feb 24 16:15 4797.
-rw--- 1 cyrus mail 111030 Feb 24 16:21 4798.
-rw--- 1 cyrus mail 4805500 Feb 24 16:23 4799.
-rw--- 1 cyrus mail 22920 Feb 24 16:23 cyrus.cache
-rw--- 1 cyrus mail 204 Dec 10 16:27 cyrus.header
-rw--- 1 cyrus mail 896 Feb 24 16:23 cyrus.index
-rw--- 1 cyrus mail 8669 Feb 24 11:28 cyrus.squat

this is Just a very small user and a example



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Re: [CentOS] Backup solution to backup /var/spool/imap above 150GB data

[Agnello George]

On Wed, Feb 24, 2010 at 4:13 PM, Gavin Carr  wrote:

> On Wed, Feb 24, 2010 at 10:38:32AM +0100, David Hrbáč wrote:
> > Dne 24.2.2010 10:00, Agnello George napsal(a):
> > > We have  an issue with one of our clients , they have a mail server
> with
> > > the  /var/spool/imap partition as 150 GB . They need to take
> differential
> > > backup on to /backup partition ( a different HDD  of total 250 GB space
> )  .
> > > We have tried dar , rsync, rdiff and impasync . But its is not
> sufficing the
> > > need as to take a lot of time and consumes a lot of I/O .
> > >
> > > Is there any back up solution that you can think of , that can work in
> this
> > > situation  - open source or proprietary
> >
> > Is seems to me, that you are using mbox format. So, differential backup
> > is hard to achieve. Migrate to maildir, every mail is a file, easy to
> > backup differentially.
>
> rsync and rdiff should handle mbox format okay though. Though I agree
> Maildir
> is generally nicer for differential backups.
>
> Agnello, how long is "a lot of time"? A backup is always going to have to
> walk
> the entire tree and checksum (or at least stat) every file, so there's a
> minimum
> cost you're always going to have. How long does a 'find /var/spool/imap
> -ls'
> take, for instance?
>
> You might want to try brackup (http://code.google.com/p/brackup/). For
> very
> large trees of relatively small files it seems to significantly out-perform
> rsync-based backups. I've got brackup packages in my repository (see
> http://www.openfusion.net/linux/openfusion_rpm_repository).
>
> Cheers,
> Gavin
>
>  <http://lists.centos.org/mailman/listinfo/centos>
>
is it possible with " brackup "  <http://code.google.com/p/brackup/> to back
it up to a different server on the same lan   instead of /backup  . Is there
any documentation on the same .


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Re: [CentOS] Backup solution to backup /var/spool/imap above 150GB data

[Agnello George]

On Wed, Feb 24, 2010 at 4:57 PM, Eero Volotinen wrote:

> 2010/2/24 Agnello George :
> >
> >
> > On Wed, Feb 24, 2010 at 4:13 PM, Gavin Carr 
> wrote:
> >>
> >> On Wed, Feb 24, 2010 at 10:38:32AM +0100, David Hrbáč wrote:
> >> > Dne 24.2.2010 10:00, Agnello George napsal(a):
> >> > > We have  an issue with one of our clients , they have a mail server
> >> > > with
> >> > > the  /var/spool/imap partition as 150 GB . They need to take
> >> > > differential
> >> > > backup on to /backup partition ( a different HDD  of total 250 GB
> >> > > space )  .
> >> > > We have tried dar , rsync, rdiff and impasync . But its is not
> >> > > sufficing the
> >> > > need as to take a lot of time and consumes a lot of I/O .
> >> > >
> >> > > Is there any back up solution that you can think of , that can work
> in
> >> > > this
> >> > > situation  - open source or proprietary
> >> >
> >> > Is seems to me, that you are using mbox format. So, differential
> backup
> >> > is hard to achieve. Migrate to maildir, every mail is a file, easy to
> >> > backup differentially.
> >>
> >> rsync and rdiff should handle mbox format okay though. Though I agree
> >> Maildir
> >> is generally nicer for differential backups.
> >>
> >> Agnello, how long is "a lot of time"? A backup is always going to have
> to
> >> walk
> >> the entire tree and checksum (or at least stat) every file, so there's a
> >> minimum
> >> cost you're always going to have. How long does a 'find /var/spool/imap
> >> -ls'
> >> take, for instance?
> >>
> >> You might want to try brackup (http://code.google.com/p/brackup/). For
> >> very
> >> large trees of relatively small files it seems to significantly
> >> out-perform
> >> rsync-based backups. I've got brackup packages in my repository (see
> >> http://www.openfusion.net/linux/openfusion_rpm_repository).
> >>
> >> Cheers,
> >> Gavin
> >>
> > is it possible with " brackup "  to back it up to a different server on
> the
> > same lan   instead of /backup  . Is there any documentation on the same .
>
> rsync or rdiff-backup works on local disk or remote disk.(and other
> backup methods too!)
>

Does http://code.google.com/p/brackup/  also work in on remote machines .
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Re: [CentOS] Backup solution to backup /var/spool/imap above 150GB data

[Agnello George]

On Wed, Feb 24, 2010 at 6:19 PM, Karanbir Singh wrote:

> On 02/24/2010 11:21 AM, Agnello George wrote:
> > -rw--- 1 cyrus mail 4805500 Feb 24 16:23 4799.
> > -rw--- 1 cyrus mail 22920 Feb 24 16:23 cyrus.cache
> > -rw--- 1 cyrus mail 204 Dec 10 16:27 cyrus.header
> > -rw--- 1 cyrus mail 896 Feb 24 16:23 cyrus.index
> > -rw--- 1 cyrus mail 8669 Feb 24 11:28 cyrus.squat
> >
> > this is Just a very small user and a example
>
> About 90% of your problem is already solved here, you are using cyrus
> which has built in mail level replication. All you need to do is setup a
> lvm volume away from this main store and run your mail replica over to
> it. then just backup using whatever tools you want.
>
> Free win you get is online failover, backup in whatever manner you want!
>
yes just spoke to my senior and confrimed that this was alreday tried out a
delayed replication  is possible .
but the current suitation is we need to  take backup  on  the same server on
a different partition /backup   :(



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Re: [CentOS] Backup solution to backup /var/spool/imap above 150GB data

[Agnello George]

On Wed, Feb 24, 2010 at 7:05 PM, Gavin Carr  wrote:

> On Wed, Feb 24, 2010 at 05:06:08PM +0530, Agnello George wrote:
> > On Wed, Feb 24, 2010 at 4:57 PM, Eero Volotinen  >wrote:
> > > 2010/2/24 Agnello George :
> > > > On Wed, Feb 24, 2010 at 4:13 PM, Gavin Carr  >
> > > wrote:
> > > >> You might want to try brackup (http://code.google.com/p/brackup/).
> For
> > > >> very
> > > >> large trees of relatively small files it seems to significantly
> > > >> out-perform
> > > >> rsync-based backups. I've got brackup packages in my repository (see
> > > >> http://www.openfusion.net/linux/openfusion_rpm_repository).
> > > >>
> > > >> Cheers,
> > > >> Gavin
> > > >>
> > > > is it possible with " brackup "  to back it up to a different server
> on
> > > > the same lan   instead of /backup  . Is there any documentation on
> the
> > > > same .
> > >
> > > rsync or rdiff-backup works on local disk or remote disk.(and other
> > > backup methods too!)
> >
> > Does http://code.google.com/p/brackup/  also work in on remote machines
> .
>
> Brackup will backup to local disk, or remotely to ftp, sftp, Amazon S3, or
> Rackspace CloudFiles targets/servers. So yes, on a lan you can backup over
> ftp or sftp just fine.
>
> Re docs, install brackup, 'man Brackup::Manual::Overview'. I've also
> written
> a few blog posts on it: http://www.openfusion.net/tags/brackup.
>
> Cheers,
> Gavin
>
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it will take me some time to try this .. will get back on its output !! ..
thanks

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Re: [CentOS] Backup solution to backup /var/spool/imap above 150GB data

[Agnello George]

On Thu, Feb 25, 2010 at 1:19 AM, Mike McCarty wrote:

> Eero Volotinen wrote:
> > 2010/2/24 Mike McCarty :
> >> Agnello George wrote:
> >>> Hi
> >>>
> >>> We have  an issue with one of our clients , they have a mail server
> with
> >>> the  /var/spool/imap partition as 150 GB . They need to take
> differential
> >>> backup on to /backup partition ( a different HDD  of total 250 GB space
> )  .
> >> You've stated things in terms of solutions. You may possibly get better
> >> answers if you state your goal. There is some capability you are
> >> trying to achieve. Tell us what that is, and you may make more progress.
> >>
> >> IOW, what is the purpose of the backup? As one mentioned, RAID may
> >> handle your needs.
> >
> > Err.. raid is NOT backup solution.
>
> Of course not. RAID is a means to achieve availability,
> which may be his goal. Karanbir already stated a means to do
> what he seemed to want, but it seemed not to satisfy his needs.
>
> Unless the query is placed in terms of requirements and goals,
> instead of solutions, it'll be difficult to achieve satisfactory
> results.
>
> The purpose of backup is some degree of disaster recovery, and
> perhaps also migration. If that's truly his goal, then ISTM
> that Karanbir suggested a viable solution to achieving avialability
> while also performing backup, by doing on-the-fly duplication
> of the data onto another file system which can then be backed up
> at liesure.
>
> Doing so in a manner which ensures a true snapshot may be more
> difficult to achieve, while still ensuring availability. I normally
> do my backups in single user mode with all file systems mounted read
> only, except the one to receive the backup. That of course precludes
> availability during the backup procedure.
>
> That's why I would like to see what he actually wants to achieve,
> instead of how he has chosen to go about it.
>
> Mike
> --
>

The requirement fro backup  is not  primarily  for HDD failure , but human
error failure . In case one of our user ( eg: the COO with huge  mailbox
size has delete all his certain very important mails, and he want to recover
them , the contacts us as we are supposed to maintain his mail backup for a
week, and we should restore his backup immediately  )  this the main
requirement  for the backup  and that too on the same server different
partition .

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Re: [CentOS] Backup solution to backup /var/spool/imap above 150GB data

[Agnello George]

On Wed, Feb 24, 2010 at 7:05 PM, Gavin Carr  wrote:

> On Wed, Feb 24, 2010 at 05:06:08PM +0530, Agnello George wrote:
> > On Wed, Feb 24, 2010 at 4:57 PM, Eero Volotinen  >wrote:
> > > 2010/2/24 Agnello George :
> > > > On Wed, Feb 24, 2010 at 4:13 PM, Gavin Carr  >
> > > wrote:
> > > >> You might want to try brackup (http://code.google.com/p/brackup/).
> For
> > > >> very
> > > >> large trees of relatively small files it seems to significantly
> > > >> out-perform
> > > >> rsync-based backups. I've got brackup packages in my repository (see
> > > >> http://www.openfusion.net/linux/openfusion_rpm_repository).
> > > >>
> > > >> Cheers,
> > > >> Gavin
> > > >>
> > > > is it possible with " brackup "  to back it up to a different server
> on
> > > > the same lan   instead of /backup  . Is there any documentation on
> the
> > > > same .
> > >
> > > rsync or rdiff-backup works on local disk or remote disk.(and other
> > > backup methods too!)
> >
> > Does http://code.google.com/p/brackup/  also work in on remote machines
> .
>
> Brackup will backup to local disk, or remotely to ftp, sftp, Amazon S3, or
> Rackspace CloudFiles targets/servers. So yes, on a lan you can backup over
> ftp or sftp just fine.
>
> Re docs, install brackup, 'man Brackup::Manual::Overview'. I've also
> written
> a few blog posts on it: http://www.openfusion.net/tags/brackup.
>
> Cheers,
> Gavin
>
> I am trying to install the  brackup app on my system, the documentations
seems very helpful ( http://www.openfusion.net/net/fun_with_brackup)
But i have a  few  queries  with the config file :
[TARGET:backups]
type = Filesystem
path = /backup

[SOURCE:imapsource]
path = /var/spool/imap
chunk_size = 5m   # what does this mean 
gpg_recipient = 5E1B3EC5 # what does this mean 

[SOURCE:bradhome]
chunk_size = 64MB
path = /raid/bradfitz/
ignore = ^\.thumbnails/
ignore = ^\.kde/share/thumbnails/
ignore = ^\.ee/minis/
ignore = ^build/
ignore = ^(gqview|nautilus)/thumbnails/


and suppose i want to backup it up to another server with scp / ssh how
is this attatined .
secondly in whant format is the backup maintained .

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[CentOS] vim how to set colorscheme murphy

[Agnello George]

Hi
I would just like to know in vim how do i  set colorscheme as  murphy
Thanks

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Re: [CentOS] vim how to set colorscheme murphy

[Agnello George]

On Fri, Mar 19, 2010 at 10:30 AM, Joseph L. Casale <
jcas...@activenetwerx.com> wrote:

>
> >Hi
> >I would just like to know in vim how do i  set colorscheme as  murphy
>
> Ironically, your subject contained the exact command:
>
> http://vim.wikia.com/wiki/Change_the_color_scheme
>
> while in vim, hit esc, colon, then type `colorscheme murphy` (note the
> case)
>
> You can set this in your .vimrc.
> ___
>  

how do i set it in my /etc/vimrc   so that i sont have to manually use the
colorscheme murphy

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Re: [CentOS] vim how to set colorscheme murphy

[Agnello George]

On Fri, Mar 19, 2010 at 10:37 AM, Agnello George
wrote:

>
>
> On Fri, Mar 19, 2010 at 10:30 AM, Joseph L. Casale <
> jcas...@activenetwerx.com> wrote:
>
>>
>> >Hi
>> >I would just like to know in vim how do i  set colorscheme as  murphy
>>
>> Ironically, your subject contained the exact command:
>>
>> http://vim.wikia.com/wiki/Change_the_color_scheme
>>
>> while in vim, hit esc, colon, then type `colorscheme murphy` (note the
>> case)
>>
>> You can set this in your .vimrc.
>> ___
>>
> how do i set it in my /etc/vimrc   so that i sont have to manually use the
> colorscheme murphy
>
> --
> Regards
> Agnello D'souza
>
>
>


sorry i got it solved , i created a /root/.vimrc  and added colorscheme
murphy to it .
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[CentOS] yum to use different bind address

[Agnello George]

Hi
Is there a way i can use a diffent bind-addresss  in  yum .
Thanks

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[CentOS] vmware-server-console not installed

[Agnello George]

I had installed the vmware server ( VMware-server-2.0.1-156745.i386 ) on my
CentOS 5 box how ever i am not able to  to find the command
vmware-server-console . Do i need to install that RPM separately .

Thanks

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Re: [CentOS] vmware-server-console not installed

[Agnello George]

On Tue, Apr 27, 2010 at 8:49 AM, Dan Irwin  wrote:

> >You don't need to downgrade for the whole OS, you can just do it for
> >VMware.  See the procedure in the first comment in this bug
> >http://bugs.centos.org/view.php?id=3884.  I have done that and it
> >works fine.  Just remember that if you update vmware, the edits to
> >vmware-hostd will be undone, so you need to redo them.
>
> Thanks for the mantis link, it was very informative.
>
> Cheers,
>
> Dan
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so many replies ...
so my best option is to install  VMware-server-1 ???

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[CentOS] difference between stickybit SUID and SGID

[Agnello George]

i had a small query , whant is the difference between stickybit SUID and
SGID  , is there any proper site where i can get a clear understanding .


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[CentOS] kernel panic not syncing fatal exception due to reiserfs -- rebooted properly on ext3

[Agnello George]

Hi
we had one of our mail servers , going on kernel panic mode  ( not syncing
fatal exception) ... cause /var/queue/postfix was on reiserfs part .. it has
not been giving us any isssue quite some time , but yesterday and today it
went on Kernel panic mode , when we hashed out the reiserfs part it booted
properly .. we formated the part^ on ext3 later and things working fine now
. Could any one have a idea why this could have happened . The server hung
at 19:52:56 hours
Here is the logs
--
ug 2 19:50:01 mmail2 snmpd[4460]: Connection from UDP: []:53980
Aug 2 19:50:55 mmail kernel: ReiserFS: sda6: warning: vs-13060:
reiserfs_update_sd: stat data of object [2 203562 0x0 SD] (nlink == 2) not
found (pos 1)
Aug 2 19:51:33 mmail last message repeated 2 times
Aug 2 19:52:34 mmail last message repeated 12 times
Aug 2 19:52:52 mmail kernel: ReiserFS: sda6: warning: vs-13060:
reiserfs_update_sd: stat data of object [2 203562 0x0 SD] (nlink == 2) not
found (pos 1)
Aug 2 19:52:56 mmail kernel: ReiserFS: warning: is_leaf: free space seems
wrong: level=1, nr_items=2, free_space=65512 rdkey
Aug 2 19:52:56 mmail kernel: ReiserFS: sda6: warning: vs-5150:
search_by_key: invalid format found in block 37030. Fsck?
Aug 2 19:52:56 mmail kernel: ReiserFS: sda6: warning: vs-13050:
reiserfs_update_sd: i/o failure occurred trying to update [2 203562 0x0 SD]
stat data
Aug 2 20:13:27 mmail syslogd 1.4.1: restart.
Aug 2 20:13:27 mmail kernel: klogd 1.4.1, log source = /proc/kmsg started.
Aug 2 20:13:27 mmail kernel: Linux version 2.6.18-128.el5 (
mockbu...@builder10.centos.org) (gcc version 4.1.2 20080704 (Red Hat
4.1.2-44)) #1 SMP Wed Jan 21 10:41:14 EST 2009
Aug 2 20:13:27 mmail kernel: Command line: ro root=LABEL=/1 rhgb quiet
Aug 2 20:13:27 mmail kernel: BIOS-provided physical RAM map:
Aug 2 20:13:27 mmail kernel: BIOS-e820:  - 000a
(usable)
Aug 2 20:13:27 mmail kernel: BIOS-e820: 0010 - cfb5
(usable)
Aug 2 20:13:27 mmail kernel: BIOS-e820: cfb5 - cfb66000
(reserved)


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Re: [CentOS] kernel panic not syncing fatal exception due to reiserfs -- rebooted properly on ext3

[Agnello George]

On Tue, Aug 3, 2010 at 2:01 AM, Akemi Yagi  wrote:

> On Mon, Aug 2, 2010 at 9:13 AM, Agnello George 
> wrote:
> > Hi
> > we had one of our mail servers , going on kernel panic mode  ( not
> syncing
> > fatal exception) ... cause /var/queue/postfix was on reiserfs part .. it
> has
> > not been giving us any isssue quite some time , but yesterday and today
> it
> > went on Kernel panic mode , when we hashed out the reiserfs part it
> booted
> > properly .. we formated the part^ on ext3 later and things working fine
> now
> > . Could any one have a idea why this could have happened . The server
> hung
> > at 19:52:56 hours
> > Here is the logs
> > --
> > ug 2 19:50:01 mmail2 snmpd[4460]: Connection from UDP: []:53980
> > Aug 2 19:50:55 mmail kernel: ReiserFS: sda6: warning: vs-13060:
> > reiserfs_update_sd: stat data of object [2 203562 0x0 SD] (nlink == 2)
> not
> > found (pos 1)
> (snip)
> > Aug 2 20:13:27 mmail syslogd 1.4.1: restart.
> > Aug 2 20:13:27 mmail kernel: klogd 1.4.1, log source = /proc/kmsg
> started.
> > Aug 2 20:13:27 mmail kernel: Linux version 2.6.18-128.el5
> (snip)
> > --
> > Regards
> > Agnello D'souza
>
> This is a known problem and there is a patch for that:
>
> http://bugs.centos.org/view.php?id=3156
>
> Your kernel is so old (meaning many security holes). Please update the
> system and while doing so, grab the centosplus kernel which has the
> fix for this issue.
>
> Akemi
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Hi
Thanks for you reply , currently we have the default kernel 2.6.18-128.el5
 ( centos 5.3 ) , can i install the kernel-2.6.18-8.1.8.el5.src.rpm and add
the patch to this or do i have to  download the kernel 2.6.21 then compile
it and then install it .  I had been to the kernel.org and cant find the
kernel 2.6.21 , the kernels available are 2.6.27.49 and above .
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Re: [CentOS] kernel panic not syncing fatal exception due to reiserfs -- rebooted properly on ext3

[Agnello George]

On Tue, Aug 3, 2010 at 1:25 PM, John R Pierce  wrote:

>  On 08/03/10 12:44 AM, Agnello George wrote:
>
>>
>> Thanks for you reply , currently we have the default kernel 2.6.18-128.el5
>>  ( centos 5.3 ) , can i install the kernel-2.6.18-8.1.8.el5.src.rpm and add
>> the patch to this or do i have to  download the kernel 2.6.21 then compile
>> it and then install it .  I had been to the kernel.org <http://kernel.org>
>> and cant find the kernel 2.6.21 , the kernels available are 2.6.27.49 and
>> above .
>>
>>
> # yum update
>
> should install the latest centos5 kernel (centosplus if you installed your
> reiser supporting kernel from there) and that should have the fixes
> installed.
>
>
>
Hi
I have install the  kernel using the Centosplus repo .. currenlly the kernel
is
2.6.18-194.8.1.el5.centos.plus
but how would i know if that patch is fixed in this version of the kernel
 as mentioned in http://bugs.centos.org/view.php?id=3156

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Re: [CentOS] kernel panic not syncing fatal exception due to reiserfs -- rebooted properly on ext3

[Agnello George]

On Tue, Aug 3, 2010 at 9:42 PM, Akemi Yagi  wrote:

> On Tue, Aug 3, 2010 at 6:13 AM, James Hogarth 
> wrote:
>
> >> Hi
> >> I have install the  kernel using the Centosplus repo .. currenlly the
> kernel
> >> is
> >> 2.6.18-194.8.1.el5.centos.plus
> >> but how would i know if that patch is fixed in this version of the
> kernel
> >>  as mentioned in http://bugs.centos.org/view.php?id=3156
> >> --
> >> Regards
> >> Agnello D'souza
> >
> > How about reading  the bug you linked where it states quite explicitly
> > that it was fixed in the 5.3 centos plus kernel
> > (2.6.18-128.el5.centos.plus) and recognising the version number as
> > previous to the one you just installed...
> >
> > James
>
> And if you wish to confirm that the patch is in the current centosplus
> kernel you are running, issue a command:
>
> rpm -q --changelog kernel-`uname -r` | more
>
> You will find this line:
>
> - added reiserfs patch (bug3156)
>
> somewhere near the top of the output.
>
> Akemi
> ___
>

Thanks so much i was able to confirm it !!
---
here what i did


refer http://wiki.centos.org/AdditionalResources/Repositories/CentOSPlus

edit /etc/yum.repos.d/CentOS-Base.repo
search [centosplus]
enabled=1
includepkgs=kernel* jfsutils reiserfs-utils


yum --enablerepo=centosplus install kernel


cat /proc/filesystems |grep reiser


possible that kernel module and not yet loaded.

 modprobe reiserfs



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Re: [CentOS] ZFS on Linux in production?

[George Kontostanos]

We tested ZFS on CentOS 6.4 a few months ago using a descend Supermicro
server with 16GB RAM and 11 drives on RaidZ3. Same specs as a middle range
storage server that we build mainly using FreeBSD.

Performance was not bad but eventually we run into a situation were we
could not import a pool anymore after a kernel / modules update.

I would not recommend it for production...


On Fri, Oct 25, 2013 at 2:12 AM, Lists  wrote:

> On 10/24/2013 02:47 PM, SilverTip257 wrote:
> > You didn't mention XFS.
> > Just curious if you considered it or not.
>
> Most definitely. There are a few features that I'm looking for:
>
> 1) MOST IMPORTANT: STABLE!
>
> 2) The ability to make the partition  bigger by adding drives with very
> minimal/no downtime.
>
> 3) The ability to remove an older, (smaller) drive or drives in order to
> replace with larger capacity drives without downtime or having to copy
> over all the files manually.
>
> 4) The ability to create snapshots with no downtime.
>
> 5) The ability to synchronize snapshots quickly and without having to
> scan every single file. (backups)
>
> 6) Reasonable failure mode. Things *do* go south sometimes. Simple is
> better, especially when it's simpler for the (typically highly stressed)
> administrator.
>
> 7) Big. Basically all filesystems in question can handle our size
> requirements. We might hit a 100 TB  partition in the next 5 years.
>
> I think ZFS and BTRFS are the only candidates that claim to do all the
> above. Btrfs seems to have been "stable in a year or so" for as long as
> I could keep a straight face around the word "Gigabyte", so it's a
> non-starter at this point.
>
> LVM2/Ext4 can do much of the above. However, horror stories abound,
> particularly around very large volumes. Also, LVM2 can be terrible in
> failure situations.
>
> XFS does snapshots, but don't you have to freeze the volume first?
> Xfsrestore looks interesting for backups, though I don't know if there's
> a consistent "freeze point". (what about ongoing writes?) Not sure about
> removing HDDs in a volume with XFS.
>
> Not as sure about ZFS' stability on Linux (those who run direct Unix
> derivatives seem to rave about it) and failure modes.
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Re: [CentOS] ZFS on Linux in production?

[George Kontostanos]

On Sat, Oct 26, 2013 at 4:36 PM, Ray Van Dolson  wrote:

> On Thu, Oct 24, 2013 at 01:59:15PM -0700, John R Pierce wrote:
> > On 10/24/2013 1:41 PM, Lists wrote:
> > > Was wondering if anybody here could weigh in with real-life experience?
> > > Performance/scalability?
> >
> > I've only used ZFS on Solaris and FreeBSD.some general
> observations...
> >
> > 1) you need a LOT of ram for decent performance on large zpools. 1GB ram
> > above your basic system/application requirements per terabyte of zpool
> > is not unreasonable.
> >
> > 2) don't go overboard with snapshots.   a few 100 are probably OK, but
> > 1000s (*) will really drag down the performance of operations that
> > enumerate file systems.
> >
> > 3) NEVER let a zpool fill up above about 70% full, or the performance
> > really goes downhill.
>
> Have run into this one (again -- with Nexenta) as well.  It can be
> pretty dramatic.  We tend to set quotas to ensure we don'get exceed 75%
> or so max, but
>
>
> We maybe getting a bit off topic here but on that subject we have noticed
a significant degrade in performance on systems running at 75-80 % of their
pool capacity. I understand that the nature of COW will increase
fragmentation. On large storages though 70% out of 100TB means that you
have to always maintain 30TB free which is not a small number in terms of
cost per TB.

-
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[CentOS] Hash rounds in /etc/libuser.conf won't work - how to report a bug

[george . shaffer]

Two weeks ago I reported a problem I was having in the CentOS 5 Security 
Support forum. I could not get hash rounds, configured in /etc/libuser.conf, to 
work on CentOS release 5.10 (Final), 2.6.18-371.3.1.el5 x86_64. The details are 
here: 
https:// 
www.centos.org/forums/viewforum.php?f=24&sid=44859638070165ed5d8d9c35cdbe0378 

I read all the documentation and looked for more off the CentOS site. I 
searched the entire CentOS site for hash_rounds_min and hash_rounds_max, the 
parameters changed in libuser.conf to configure the desired changes, without a 
single hit in any area on either. Nearly 800 people have seen my post and not a 
single reply; not unusual in that forum for what may be an infrequent 
situation. I'm guessing very few people have tried these options. At the same 
time I changed the hashing algorithm. Hash rounds only works with sha256 or 
sha512. This worked the first time. 

The concept of configurable hash rounds is the administrator can adapt the the 
hashing process to the specific hardware on which this is being configured and 
on faster hardware when a system is installed late in a OSs life cycle, up the 
rounds to make cracking harder. If an admin is willing to make users wait 2 
seconds on every login and su, then a cracker on similar hardware could only 
get 0.5 cracks per second. This would make even 3 character passwords that did 
not fall to dictionary attacks tedious, and "good" 6 character passwords would 
be uncrackable. Even with a fast cracking network, with multiple GPGPU enabled 
PCs and a mixture of compromised systems working 10,000 times faster than the 
single PC, good 6 character passwords would be a serious obstacle and 8 quite 
uncrackable. 

I need this for a paper I'm writing which maintains "After 20 Years, Windows 
Passwords Still Broken". I want to compare Windows' poor MD4 with no salts 
(this is about NT hashes, not the notoriously broken LM hashes), to Unix like 
with salts, choice of algorithms, and hashing cycle control. The comparison is 
much weaker if I have no working example for one of the 3 key pieces on the 
Unix side. 

If anyone has successfully used hash rounds controls, I'd very much like to 
know what you did that I missed in my detailed forum report. 

It's possible there is no bug. I'm basing this on the belief that 900 million 
to 1 billion hashing rounds should produce a substantial delay and not complete 
in a small fraction of a second. Either my knowledge is way of or my PC MUCH 
faster than I thought it was, or there is a bug, if I've done everything 
correctly according to the documentation. 

I looked up how to report a bug and this said to submit the report to the 
CentOS-qa mailing list but I cannot find such a list. 
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[CentOS] Hash rounds in /etc/libuser.conf won't work

[george . shaffer]

Two weeks ago I reported a problem I was having in the CentOS 5 Security 
Support forum. I could not get hash rounds, configured in /etc/libuser.conf, to 
work on CentOS release 5.10 (Final), 2.6.18-371.3.1.el5 x86_64. The details are 
here:
https://www.centos.org/forums/viewtopic.php?f=24&t=44245&sid=975951a5a0eb264945bbf550ea076278

I read all the documentation and looked for more off the CentOS site. I 
searched the entire CentOS site for hash_rounds_min and hash_rounds_max, the 
parameters changed in libuser.conf to configure the desired changes, without a 
single hit in any area on either. Over 800 people have seen my post and not a 
single reply; not unusual in that forum for what may be an infrequent 
situation. I'm guessing very few people have tried these options. At the same 
time I changed the hashing algorithm. Hash rounds only works with sha256 or 
sha512. The algorithm change worked the first time.

The concept of configurable hash rounds is that the administrator can adapt the 
the hashing process to the specific hardware on which this is being configured 
and on faster hardware when a system is installed late in a OSs life cycle, up 
the rounds to make cracking harder. If an admin is willing to make users wait 2 
seconds on every login and su, then a cracker on similar hardware could only 
get 0.5 cracks per second. This would make even 3 character passwords that did 
not fall to dictionary attacks tedious, and "good" 6 character passwords would 
be uncrackable.
Even with a fast cracking network, with multiple GPGPU enabled PCs and a 
mixture of compromised systems working 10,000 times faster than a single PC, 
good 6 character passwords would be a serious obstacle and 8 uncrackable.

I need this for a paper I'm writing which maintains "After 20 Years, Windows 
Passwords Still Broken". I want to compare Windows' poor MD4 with no salts 
(this is about NT hashes, not the notoriously broken LM hashes), to Unix like 
with salts, choice of algorithms, and hashing cycle control. The comparison is 
much weaker if I have no working example for one of the 3 key pieces on the 
Unix side.

If anyone has successfully used hash rounds controls, I'd very much like to 
know what you did that I missed in my detailed forum report.

It's possible there is no bug. I'm basing this on the belief that 900 million 
to 1 billion hashing rounds with SHA512 should produce a substantial delay and 
not complete in a small fraction of a second. Either my knowledge is way of or 
my PC MUCH faster than I thought it was, or there is a bug, if I've done 
everything correctly according to the documentation.

I looked up how to report a bug and this said to submit the report to the 
CentOS-qa mailing list but I cannot find such a list. Is there such a list or 
any bug reporting procedure?

If this is a duplicate post I apologize. I sent one yesterday and never got it 
and it's not in the archives when messages sent latter are.
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Re: [CentOS] Password hash rounds solved - important security implications

[george . shaffer]

A member of the scientific-linux-us...@fnal.gov wrote:
On 01/14/2014 04:19 PM, George Shaffer wrote:
> > If anyone has gotten password hash rounds using hash_rounds_min and
> > hash_rounds_max in libuser.conf, or the counter part in login.defs 
> > (SHA_CRYPT_MIN_ROUNDS, SHA_CRYPT_MAX_ROUNDS), to work on any RHEL related 
> > distribution, I would appreciate knowing how you did it, because this does 
> > not seem to work as the documentation I've found says it should. I know 
> > the crypt method must be SHA256 or SHA512.
> 
> This has an additional PAM setting that might be pertinent.
> http://blog.myconan.net/posts/3567

Thank you. This is just what I needed. The hash rounds control is now working, 
mostly. At the maximum rounds setting it took 14 to 19 seconds depending on 
which PC I was on. I needed to bring the delay down to around 1 to 2 seconds.

It's not working as the documentation describes. With both libuser.conf and 
login.defs set to ranges of 9 to 99900 and pam.d/password-auth-ac 
set to 9, the actual rounds on both SL and CentOS were 999 or < 
1.1% of what it should have been. This doesn't matter to me, as I need it 
faster, not slower. In pam.d/ both password-auth and system-auth are links to 
password-auth-ac and system-auth-ac respectively. These files clearly state:
# This file is auto-generated.
# User changes will be destroyed the next time authconfig is run.

which is sometimes, but not always true. If a rounds number remains in both 
password-auth and system-auth after authconfig --updateall is run, that is the 
number which is used, except the maximum value is 999 and not 9. I 
got 100 to work on both SL 6.3 and CentOS 5.10, and authentication took 
just about 2 seconds on both systems. On CentOS 5.10 I could find no PAM 
documentation anywhere that described the rounds option; I had to rely entirely 
on the brief blog brought to my attention by the S-L-users list member. On SL 
6.3 the PAM rounds option is documented in man 8 pam_unix. If I'm reading this 
correctly, the proper file to edit would be /etc/pam.d/login where the line 
"passwordsufficientpam_unix.so sha512 rounds=100 shadow nullok 
try_first_pass use_authtok" should be added.


Password hash rounds control seems to be almost unused. I got no responses in 
the CentOS 5 Security forum or on the general CentOS email list.

People do not seem to understand how important this can be to password 
security. According to the oclHashcat (hashcat.net) documentation on the 
fastest GPU enabled PC they have tested, they get 797 million CPS (cracks per 
second) against SHA512. If the super fast PC is compared to the single CPU PC 
with no GPU, using the only algorithm common to all tests (NTLM), there is a 
speed difference of 1981 times. This suggests roughly 400,000 CPS against 
SHA512 on the single CPU PC they tested. (Each hashing algorithm interacts 
differently with the various hardware test configurations, so using one 
algorithm to estimate how another will perform on a different machine is only a 
crude estimate. Below, the numbers are discussed like reliable estimates, but 
until empirical evidence establishes the actual rates in a specific situation, 
none are reliable.)

The Hashcat single CPU machine has an AMD Phenom II X6 1090T clocked at 3.8 
GHz. The test times of single CPU PCs without GPUs are relevant because the GPU 
enabled, oclHashcat, cannot run a simple dictionary word list with no 
transformations. oclHashcat must have, brute force characters added to either 
or both ends of the words in a list. To run a list of the 10,000 most common 
passwords, without transformations, you need to use the single CPU Hashcat or 
the deprecated GPU oclHashcat-plus. It seems there is no efficient way to make 
use of a massively parallel architecture using a simple word list.

oclHashcat also cannot process the "Rule-based Attack" which corresponds with 
the transformations found in John the Ripper. Again one must use the single CPU 
Hashcat or the deprecated oclHashcat-plus. So, oclHashcat is blindingly fast 
with a GPU on brute force and related attacks but cannot process the most 
obvious dictionary or do the most productive transformations of a dictionary 
containing real words and names. The most productive transformation is checking 
the first character, and only the first character, for upper and lower case, in 
combination with appending 1, 2, or 3 digits to the end of the word. The third 
digit would be very low yield compared to the first, but still very high 
compared to any pure brute force attack. If these issues are indicative of a 
problem that does not fit well with a massively parallel architecture, and not 
limitations of the oclHashcat developers, there are significant implications 
for password security.

Simply put, password hash round controls can be used to 

Re: [CentOS] uefi

[George Eleftheriou]

It's risky and a bit complicated. However I've tried it (on a
workstation, not on a laptop) and it worked (CentOS/Win8 dualboot)
fine. Backing up your entire disk to an img file before attempting to
make a dual-boot setup CentOS/Windows on a laptop would be an
excellent first step.

Create a USB image according to the instructions below:
https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Installation_Guide/Making_Minimal_Boot_Media-UEFI.html

You also have to burn at least the first DVD on a disc, since the USB
installer will later ask you for the source media of the packages to
install. That is, the USB image contains just the necessary things to
boot in UEFI mode, then it needs a DVD to continue the installation
from there.

So in case your laptop does not have a DVD reader, be prepared to use
a portable one (probably with USB connection).

CAUTION! you will need to properly define the /boot/efi partition in
order not to mess things up with your existing Windows installation!
That means you need to find the existing EFI partition and just mount
it as /boot/efi WITHOUT FORMATTING IT !

Good luck


On Sat, Mar 29, 2014 at 1:52 PM, Hossein Lanjanian
 wrote:
> How can I install
> a dual boot centos
>  in my laptop
> while my windows has
> UEFI partition?
>
> --
> With The Best
> H.Lanjanian
> ---
> Hossein Lanjanian,
> Ph.D. student
>
> Laboratory of Systems Biology and Bioinformatics
> (LBB)
> Institute of Biochemistry and Biophysics (IBB), University of
> Tehran
> Tehran, Iran
> http://LBB.ut.ac.ir http://ibb.ut.ac.ir
> h.lanjan...@ut.ac.ir
>
> -
> -
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Re: [CentOS] Renaming NIC name in CentOS 7

[George Kontostanos]

On Fri, Oct 3, 2014 at 11:08 PM, Robert Moskowitz 
wrote:

>
> On 10/03/2014 03:11 PM, Richer, Mark (CIV) wrote:
>
>> Thanks to everyone who responded. This led to some interesting reading
>> and learning, but it hasn’t avoided the reboot.
>>
>> I found this page on udev:
>> How to reload udev rules without reboot?<http://unix.
>> stackexchange.com/questions/39370/how-to-reload-udev-rules-without-reboot
>> >
>> http://unix.stackexchange.com/questions/39370/how-to-reload-
>> udev-rules-without-reboot
>>
>> Sounds perfect for my question, but at least one server I tried all the
>> suggestions on, it didn’t change anything. A reboot is a “magic sauce,” but
>> it’s nice to know how to avoid this with servers. If I find another
>> solution that works for me, I’ll post it.
>>
>
> I learned this to control the MAC address so that the IPv6 suffix for my
> servers was more to my liking and I could use an RA prefix.
>
>
>  Mark
>>
>> MARK H RICHER, MS CS
>> NPS-NCR Digital Forensics Lab IT Manager
>> Computer Science Department
>> Naval Postgraduate School - National Capital Region (NCR)
>> 900 N Glebe Rd, Rm 5-182, Arlington, VA 22203
>> 571.858.3254 (o) 571.303.9498 (m) mhric...@nps.edu<mailto:mhrich
>> e...@nps.edu>
>>
>>
>>
>> On Oct 3, 2014, at 1:16 PM, Robert Moskowitz > r...@htt-consult.com>> wrote:
>>
>>
>> On 10/03/2014 12:38 PM, Darr247 wrote:
>> On 03 October 2014 @13:53 zulu, Digimer wrote:
>> On 03/10/14 09:12 AM, Richer, Mark (CIV) wrote:
>> All,
>>
>> I am trying to understand better how you give an interface a more
>> descriptive name and get it all working without a reboot, if possible.
>>
>> I actually wrote a small tutorial on how to do just this.
>>
>> https://alteeve.ca/w/Changing_Ethernet_Device_Names_in_EL7_
>> and_Fedora_15%2B
>>
>>
>> I think you missed the "without a reboot" part.  :)
>>
>> Supposedly you can restart udev and then networkservices
>>
>>
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Of course if you don't mind rebooting the system, this will work as well:
http://wiki.centos.org/FAQ/CentOS7#head-31ebc6642958a0df12304d6aab9a49034a3b7802

[root@entos7 ~]# ifconfig

eth0: flags=4163  mtu 1500

inet 10.30.1.100  netmask 255.255.255.0  broadcast 10.30.1.255

inet6 fe80::a00:27ff:fe54:1d2d  prefixlen 64  scopeid 0x20

ether 08:00:27:54:1d:2d  txqueuelen 1000  (Ethernet)

RX packets 64  bytes 7690 (7.5 KiB)

RX errors 0  dropped 0  overruns 0  frame 0

TX packets 74  bytes 11580 (11.3 KiB)

TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

eth1: flags=4163  mtu 1500

inet 172.16.154.10  netmask 255.255.255.0  broadcast 10.30.1.255

inet6 fe80::a00:27ff:fe54:1d3d  prefixlen 64  scopeid 0x20

ether 08:00:27:54:1d:3d  txqueuelen 1000  (Ethernet)

RX packets 64  bytes 7690 (7.5 KiB)

RX errors 0  dropped 0  overruns 0  frame 0

TX packets 74  bytes 11580 (11.3 KiB)

TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

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Re: [CentOS] Renaming NIC name in CentOS 7

[George Kontostanos]

I really don't get it. Why get into so much fuss just to rename your
interfaces

On Sun, Oct 5, 2014 at 5:18 PM, Eliezer Croitoru 
wrote:

> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
>
> Hey Mark,
>
> You can use "ip" tools to do the trick.
> For Ubuntu I wrote this upstart script that helps with it without
> touching udev.
> You can see it here:
> http://www1.ngtech.co.il/paste/1175/
>
> You can run this function at runtime and it will change the interface
> name.
>
> On CentOS you will need to find the right "spot" in boot to apply this
> link.
> Before NetworkManager and after udev.
>
> All The Bests,
> Eliezer
>
> On 10/03/2014 04:12 PM, Richer, Mark (CIV) wrote:
> > All,
> >
> > I am trying to understand better how you give an interface a more
> > descriptive name and get it all working without a reboot, if
> > possible.
> >
> > We have 1G and 10G interfaces, and I’m trying to use names like
> > 1G-internal, 1G-external, 10G-private, etc.  When I boot up, it’s
> > all fine, but if I add one I’m not sure if there is a way to avoid
> > the reboot? For example, I added the 10G interface names this
> > week.
> >
> > Specifically, is there a way to change the network interface name
> > you see in ifconfig and nmcli connection without rebooting CentOS
> > 7?
> >
> > I changed the name in network-scripts. I tried to restart
> > NetworkManager.
> >
> > I brought down the interface and tried to rename the file and bring
> > it up again, but it still retains the previous run-time setting
> > associated with the same UUID in the file.
> >
> > Also I find that on all but one of the server on which I did this,
> > I can restart NetworkManager, but network.service is failing to
> > restart. Do I want both active? And if yes,  is this indicative of
> > a problem related to changing the interfaces that goes away (only)
> > by rebooting? For some reason, after doing this on several systems,
> > on only one I can restart network.service, but it also still shows
> > the old interface name.
> >
> > thanks, Mark
> >
> > MARK H RICHER, MS CS NPS-NCR Digital Forensics Lab IT Manager
> > Computer Science Department Naval Postgraduate School - National
> > Capital Region (NCR) 900 N Glebe Rd, Rm 5-182, Arlington, VA 22203
> > 571.858.3254 (o) 571.303.9498 (m)
> > mhric...@nps.edu<mailto:mhric...@nps.edu>
> >
> >
> >
> > ___ CentOS mailing
> > list CentOS@centos.org
> > http://lists.centos.org/mailman/listinfo/centos
> >
>
> -BEGIN PGP SIGNATURE-
> Version: GnuPG v1
>
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> =YSN7
> -END PGP SIGNATURE-
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Re: [CentOS] Renaming NIC name in CentOS 7

[George Kontostanos]

On Sun, Oct 5, 2014 at 11:20 PM, Digimer  wrote:

> To answer this question using my use-case;
>
> I build HA clusters, and I want to make sure that physical port X on all
> nodes have the same device name. Biosdevname tries to address this, but
> doesn't work all the time.
>
> Further, in my case, I've got a minimum of six interfaces in each node,
> paired into three bonded groups. Having the device name reflect the purpose
> in the node is very helpful 12~24 months down the road when I need to fix a
> network problem.
>
> There *are* cogent arguments for renaming interfaces.
>
> cheers


No argument here. I just though that it is much easier to simply pass the
following options to grub --> "net.ifnames=0 biosdevname=0"
Then you manually edit the interface(s) name.
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[CentOS] CentOS 7.5 Nautilus 100% reproducible crash.

[George Labuschagne]

Good day

 

When trying to add an 'Other Locations' in Nautilus CentOS 7.5, Nautilus
always 100% of the time crash with a kernel error.

 

Here is a short video showing the workflow:

 

https://youtu.be/dPmTDBRqL_I

 

This did not happen in 7.4

 

Both 7.4 and 7.5 runs on VirtualBox 5.2.12 - but as stated before, this did
not happen in 7.4

 

I also did a fresh clean install of both 7.4 and 7.5, and 7.5 exhibits this
behaviour irrespective if it was updated or freshly installed.

 

Kind regards,

 

George


Disclaimer

The information contained in this communication from the sender is 
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Re: [CentOS] CentOS 7.5 Nautilus 100% reproducible crash.

[George Labuschagne]

Pardon me, but I forgot to add that right after this crash, htop as root
shows the VBoxClient service running maxed on one core until system is
rebooted.

Not sure if it is CentOS bug or VirtualBox bug because this did not happen
in 7.4 on same version of VirtualBox, and unfortunately I don't have access
to a bare metal machine on which to install and test. 

-Original Message-
From: CentOS  On Behalf Of George Labuschagne
Sent: Wednesday, 23 May 2018 10:27
To: centos@centos.org
Subject: [CentOS] CentOS 7.5 Nautilus 100% reproducible crash.

Good day

 

When trying to add an 'Other Locations' in Nautilus CentOS 7.5, Nautilus
always 100% of the time crash with a kernel error.

 

Here is a short video showing the workflow:

 

https://youtu.be/dPmTDBRqL_I

 

This did not happen in 7.4

 

Both 7.4 and 7.5 runs on VirtualBox 5.2.12 - but as stated before, this did
not happen in 7.4

 

I also did a fresh clean install of both 7.4 and 7.5, and 7.5 exhibits this
behaviour irrespective if it was updated or freshly installed.

 

Kind regards,

 

George


Disclaimer

The information contained in this communication from the sender is
confidential. It is intended solely for use by the recipient and others
authorized to receive it. If you are not the recipient, you are hereby
notified that any disclosure, copying, distribution or taking action in
relation of the contents of this information is strictly prohibited and may
be unlawful.

This email has been scanned for viruses and malware, and automatically
archived by Mimecast SA (Pty) Ltd, an innovator in Software as a Service
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Re: [CentOS] CentOS 7.5 Nautilus 100% reproducible crash.

[George Labuschagne]

I upgraded to the epelrepo's version of the 4.16 ml kernel. This did not
resolve the 100% Nautilus crash in 7.5, although the machine feels a lot
speedier overall.

Like previously stated this worked in 7.4 in the same version of VirtualBox.

Please let me know if I can supply any more specific info that may be of
assistance.

Kind regards,

George
-Original Message-
From: CentOS  On Behalf Of George Labuschagne
Sent: Wednesday, 23 May 2018 10:33
To: 'CentOS mailing list' 
Subject: Re: [CentOS] CentOS 7.5 Nautilus 100% reproducible crash.

Pardon me, but I forgot to add that right after this crash, htop as root
shows the VBoxClient service running maxed on one core until system is
rebooted.

Not sure if it is CentOS bug or VirtualBox bug because this did not happen
in 7.4 on same version of VirtualBox, and unfortunately I don't have access
to a bare metal machine on which to install and test. 

-Original Message-
From: CentOS  On Behalf Of George Labuschagne
Sent: Wednesday, 23 May 2018 10:27
To: centos@centos.org
Subject: [CentOS] CentOS 7.5 Nautilus 100% reproducible crash.

Good day

 

When trying to add an 'Other Locations' in Nautilus CentOS 7.5, Nautilus
always 100% of the time crash with a kernel error.

 

Here is a short video showing the workflow:

 

https://youtu.be/dPmTDBRqL_I

 

This did not happen in 7.4

 

Both 7.4 and 7.5 runs on VirtualBox 5.2.12 - but as stated before, this did
not happen in 7.4

 

I also did a fresh clean install of both 7.4 and 7.5, and 7.5 exhibits this
behaviour irrespective if it was updated or freshly installed.

 

Kind regards,

 

George


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