Re: [CentOS] Does e2fsck.conf contain "broken_system_clock = 1" per default on CentOS7?

2016-07-27 Thread John Hodrien

On Tue, 26 Jul 2016, Gabriele Pohl wrote:


thanks for the hint :)

I now changed the value to 0 and rebooted.

After that fsck based on Interval setting were done.

Unfortunately that is not true for the root partition.
For that I had to use maxCount settings to trigger fsck.

fyi and cheers,


I believe e2fsk happens both pre root mount, and post.  You'll want to
rebuild your initramfs to make it take effect for the root volume I'd guess.

jh
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Re: [CentOS] installing centos 7 32 bit i386 to laptop

2016-07-27 Thread Johnny Hughes
On 07/26/2016 11:44 PM, geo wrote:
> 
> 
> On 07/26/16 22:22, Johnny Hughes wrote:
> <<>>
> 
> hello Johnny,
> 
> glad you caught my post.
> 
>> If you can not get that NIC working with the default kernel, you could
>> try the experimental kernel per the bottom of:
>>
>> https://wiki.centos.org/SpecialInterestGroup/AltArch/i386
>>
> --->
> 
> thank you. just had a look at it again. read closer this time.
> 
> may have another problem with install. started a third attempt to
> install around 2223 hrs.
> 
> there seems to be a problem with installation after clicking out of
> software selection. seems to have hit a snag somewhere.
> 
> 'installation source' and 'software selection' both have the triangle.
> both read in gray 'checking software dependencies...'.
> 
> this is third round, thought i would let it try to run it's course to
> see if it might pull thru, but has not.
> 
> now, just over and hour, it is same as other attempts. clicking on
> 'begin installation' does nothing, nor does clicking other selections,
> including 'quit'.
> 
> i can 'f2' to root user prompt. not knowing what else to try, i tried
> 'top' to see if it showed changing. it does, but i can not get back to
> installation screen. holding  pressing one of the 'f' keys does
> bring up mouse pointer, but screen i am on does not change.
> 
> typing in 'reboot' does reboot.
> 
> suggestions?
> 
> if you have called it a night, like do not reply in about 30 min, i will
> go back to command line and check just which 'f' keys does what and post
> back.
> 
> thanks again for reply. greatly needed and much appreciate.
> 

If you are trying to use the NetInstall ISO and if you do not have a
network connection, that will not work (it requires a network install to
begin).

If you install with the CentOS-7-i386-DVD-1511.iso instead, you can do
all installs without a network present.

Thanks,
Johnny



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[CentOS] CentOS-announce Digest, Vol 137, Issue 8

2016-07-27 Thread centos-announce-request
Send CentOS-announce mailing list submissions to
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When replying, please edit your Subject line so it is more specific
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Today's Topics:

   1. CESA-2016:1486 Moderate CentOS 7 samba Security   Update
  (Johnny Hughes)
   2. CESA-2016:1487 Moderate CentOS 6 samba4 Security  Update
  (Johnny Hughes)
   3. CESA-2016:1486 Moderate CentOS 7 samba Security   Update
  (Johnny Hughes)


--

Message: 1
Date: Tue, 26 Jul 2016 11:26:50 +
From: Johnny Hughes 
To: centos-annou...@centos.org
Subject: [CentOS-announce] CESA-2016:1486 Moderate CentOS 7 samba
SecurityUpdate
Message-ID: <20160726112650.ga30...@n04.lon1.karan.org>
Content-Type: text/plain; charset=us-ascii


CentOS Errata and Security Advisory 2016:1486 Moderate

Upstream details at : https://rhn.redhat.com/errata/RHSA-2016-1486.html

The following updated files have been uploaded and are currently 
syncing to the mirrors: ( sha256sum Filename ) 


Source:
2ea1482b434b0a735289ccb72fcff96b31a10bdeca0d9529bb9bfefd8e12c651  
samba-4.2.10-7.el7_2.src.rpm



-- 
Johnny Hughes
CentOS Project { http://www.centos.org/ }
irc: hughesjr, #cen...@irc.freenode.net
Twitter: @JohnnyCentOS



--

Message: 2
Date: Tue, 26 Jul 2016 11:29:16 +
From: Johnny Hughes 
To: centos-annou...@centos.org
Subject: [CentOS-announce] CESA-2016:1487 Moderate CentOS 6 samba4
SecurityUpdate
Message-ID: <20160726112916.ga30...@n04.lon1.karan.org>
Content-Type: text/plain; charset=us-ascii


CentOS Errata and Security Advisory 2016:1487 Moderate

Upstream details at : https://rhn.redhat.com/errata/RHSA-2016-1487.html

The following updated files have been uploaded and are currently 
syncing to the mirrors: ( sha256sum Filename ) 

i386:
15ca4750033d29a32719504ad067bb3805160d450ddf7b02700e65c947cabbb5  
samba4-4.2.10-7.el6_8.i686.rpm
9a2b1aaa5d71e4c97b5c0a39eab87f3b4da78fe092a1a628a3968095853dfc2b  
samba4-client-4.2.10-7.el6_8.i686.rpm
123b5d516da53b7f51f1ae20ee5405d8945ae5fe517bce96fc15d8e16dd10d04  
samba4-common-4.2.10-7.el6_8.i686.rpm
c614eabb0e29080218b4b2e9b44327fdd49d8db55c56902d6c2674721468fca3  
samba4-dc-4.2.10-7.el6_8.i686.rpm
ad13e18c084b6e732cd3d1f31217f9a22529e7d18885272c5c50ba359d918a58  
samba4-dc-libs-4.2.10-7.el6_8.i686.rpm
684ef297850f61cc20784f73cb6de83cc30d9e5b7ccf43e404ef774ffc25d2a9  
samba4-devel-4.2.10-7.el6_8.i686.rpm
43bb61576a448b2f60db213590286ea77028fad675c334f7b3493e1fa1dd6eec  
samba4-libs-4.2.10-7.el6_8.i686.rpm
ed4eef4ce872eb656966c4b9f9b699831e49373fc92256fea881a6b053abca75  
samba4-pidl-4.2.10-7.el6_8.i686.rpm
a5d8a4f6791cc610a943d0beac34e9af3e66200a53d4b4d54c93ff8ffd5b8af3  
samba4-python-4.2.10-7.el6_8.i686.rpm
8315a57e03b24438c0ee707fe11886679822d1b892e430a1670f430ffc018248  
samba4-test-4.2.10-7.el6_8.i686.rpm
c0a862d6481de5fa9168ea63a3b3339e6173bd04dc32edef60d20f3f9e4aab54  
samba4-winbind-4.2.10-7.el6_8.i686.rpm
23dada0999a40a86bb66737af5475cf520f636c750031e3101a8e96bb6b3a6f7  
samba4-winbind-clients-4.2.10-7.el6_8.i686.rpm
a59f9ab48aca42c498978f60efc81142f79aac9b1f65ff03a257e178f4a58ba9  
samba4-winbind-krb5-locator-4.2.10-7.el6_8.i686.rpm

x86_64:
b6dc22d385573d976b7497562654427dbf7c68e9a353d00f85281f10cf94f284  
samba4-4.2.10-7.el6_8.x86_64.rpm
873205cd2c05747991f348491aed2520c1fbb10290ec7dfd83efa40c57abbff4  
samba4-client-4.2.10-7.el6_8.x86_64.rpm
d3ecbf5c375999735d6a72681b1e02dd866b2d097c8f958ef05c2f265df85e74  
samba4-common-4.2.10-7.el6_8.x86_64.rpm
1ee374da3e6d9997e3213f77632c67760002d2349fe967a98021014d84f7bd65  
samba4-dc-4.2.10-7.el6_8.x86_64.rpm
47d7e7079c2540d4029022ca6a7f90886172e005c079ef8dcc3636106ea9d695  
samba4-dc-libs-4.2.10-7.el6_8.x86_64.rpm
dae07ad1fbfbf17f6586d2b21f573227a0c295fc60bce4ed7064c5c76d31b05f  
samba4-devel-4.2.10-7.el6_8.x86_64.rpm
99191c51f9f48b05a5689e2ef32506a10206c15cccf6f76bc5cdf969b314e839  
samba4-libs-4.2.10-7.el6_8.x86_64.rpm
7471a4a94c3527e359ffcb781aead43c42453dfc5ce59670ba8dffd1c1b052ad  
samba4-pidl-4.2.10-7.el6_8.x86_64.rpm
6022b996f92b9f89ca75ebf66a132e5f08e304b340169f51c43dc0b4d9280d52  
samba4-python-4.2.10-7.el6_8.x86_64.rpm
1da80174aa99318d2dcea3040ff32e4f259b5c10ce866fde1b09e0ad3018e11d  
samba4-test-4.2.10-7.el6_8.x86_64.rpm
983f26cc1cfdc61ab632caf169dcf813f037fb728770af91bae6f6aca334dbda  
samba4-winbind-4.2.10-7.el6_8.x86_64.rpm
f7e48ee612915fb163557534eae43a77d5a3cc8ab889f98fb0f1b978ab1f3aaf  
samba4-winbind-clients-4.2.10-7.el6_8.x86_64.rpm
6d7cc5c92847f1299e6235c1657c4832c91b921e1ae65ea4d797f223d0b38719  
samba4-winbind-krb5-locator-4.2.10-7.el6_8.x86_6

Re: [CentOS] installing centos 7 32 bit i386 to laptop

2016-07-27 Thread geo.inbox.ignored

good morning Johnny.

On 07/27/2016 05:38 AM, Johnny Hughes wrote:
> On 07/26/2016 11:44 PM, geo wrote:
>> On 07/26/16 22:22, Johnny Hughes wrote:
>> <<>>
>>
>> hello Johnny,
>>
>> glad you caught my post.
>>
>>> If you can not get that NIC working with the default kernel, you could
>>> try the experimental kernel per the bottom of:
>>>
>>> https://wiki.centos.org/SpecialInterestGroup/AltArch/i386
>>>
>> --->
>>
>> thank you. just had a look at it again. read closer this time.
>>
>> may have another problem with install. started a third attempt to
>> install around 2223 hrs.
>>
>> there seems to be a problem with installation after clicking out of
>> software selection. seems to have hit a snag somewhere.
>>
>> 'installation source' and 'software selection' both have the triangle.
>> both read in gray 'checking software dependencies...'.
>>
>> this is third round, thought i would let it try to run it's course to
>> see if it might pull thru, but has not.
>>
>> now, just over and hour, it is same as other attempts. clicking on
>> 'begin installation' does nothing, nor does clicking other selections,
>> including 'quit'.
>>
>> i can 'f2' to root user prompt. not knowing what else to try, i tried
>> 'top' to see if it showed changing. it does, but i can not get back to
>> installation screen. holding  pressing one of the 'f' keys does
>> bring up mouse pointer, but screen i am on does not change.
>>
>> typing in 'reboot' does reboot.
>>
>> suggestions?
>>
>> if you have called it a night, like do not reply in about 30 min, i will
>> go back to command line and check just which 'f' keys does what and post
>> back.
>>
>> thanks again for reply. greatly needed and much appreciate.
>>
> 
> If you are trying to use the NetInstall ISO and if you do not have a
> network connection, that will not work (it requires a network install to
> begin).
> 
> If you install with the CentOS-7-i386-DVD-1511.iso instead, you can do
> all installs without a network present.
>
--->

CentOS-7-i386-DVD-1511.iso.

have been trying to run gui install and beginning to believe that
could be a part of problem.

after sending last post, i did , did not run 'top', did
go thru 'f' keys 3 thru 6. 6 is where pointer displays, is frozen,
will not move, all  keys are locked like it is graphic. even
trying  fails.  does work.

do recall from attempts 1 & 2 that when i tried , along bottom
of screen the 'f' key functions is shown, plus text i do not recall.

because of problems with gui, i am seriously considering text mode.

last time i used text mode was early years of linux and with red hat.

concern with text mode is this is hdd has 12 partitions that i need to
maintain, so i need custom setup.

also want to select all but last 2 selections of software for a
workstation install.

would there be any place that i can pull info for text mode so i will
have an understanding of what i will be reading to make install.

or, is there a way to run gui, but use a graphics mode other than what
default is.

ria, i have a felling that problem is with fact that vga is an amd/ati
as shown in first post.

if there is anything that by running install to lockup and going to cli
would help solving problem, i am willing.

again, thank you for reply, greatly appreciate.


-- 

peace out.

CentOS GNU/Linux 6.8

tc,hago.

g
.

=+=
Tired of having your microsoft os hacked?
Change to Linux os, used by microsoft hackers.
=+=
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[CentOS] How to convert /etc/machine-id into a default-duid for IPv6 static DHCP?

2016-07-27 Thread Patrick Laimbock

Hi,

The use-case is deploying C7 VMs with a pre-set machine-id and 
default-duid based on the machine-id to facilitate static DHCP with 
IPv6. The default-duid is found in dhclient6--eth0.lease and IPv6 
DHCP uses default-duid like IPv4 DHCP uses MAC addresses for static DHCP.


How does one convert /etc/machine-id to a default-duid (in bash)?

1) /etc/machine-id -> DUID:



Use sha256 hash of machine-id, use first 128 bits, add colons and 
prepend 00:04:


$ MACHINE_ID_SHA256=`cat /etc/machine_id | sha256sum | cut -c1-32`
$ TMPID=$(sed -e 's/.\{2\}/&:/g;s/.$//' <<<$MACHINE_ID_SHA256)
$ DUID=00:04:`echo $TMPID`

Correct?

2) convert $DUID to a default-duid. Example value of default-duid can be 
found in /var/lib/NetworkManager/dhclient6--eth0.lease.
Will stick the pre-set default-duid in /etc/dhclient6.leases so it gets 
picked up by NM once the VM is deployed and started.


So going from e.g.
/etc/machine-id 52d8c0f2a04a462a9c9ac1a906446d85
to
duid 00:04:a6:89:54:e8:bf:e2:13:71:82:3d:ea:33:4d:a5:2f:75
to
default-duid ???

example:
default-duid 
"\000\004%\011\324\251\274\334\001c\304\366\275\314\220\357\255(";


So how does one create the default-duid from the duid? The default-duid 
seems escaped octal with some chars here and there. The NetworkManager 
code at [2] that does the duid->default-duid conversion is above my pay 
grade. Anyone know how do this conversion preferably in bash?


TIA,
Patrick

[0] 
https://cgit.freedesktop.org/NetworkManager/NetworkManager/tree/src/nm-core-utils.c#n2658


[1] 
https://cgit.freedesktop.org/NetworkManager/NetworkManager/tree/src/dhcp-manager/nm-dhcp-client.c#n439


[2] 
https://cgit.freedesktop.org/NetworkManager/NetworkManager/tree/src/dhcp-manager/nm-dhcp-dhclient-utils.c#n356

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Re: [CentOS] installing centos 7 32 bit i386 to laptop

2016-07-27 Thread fred roller
On Wed, Jul 27, 2016 at 8:15 AM, geo.inbox.ignored <
geo.inbox.igno...@gmail.com> wrote:

>
> good morning Johnny.
>
> On 07/27/2016 05:38 AM, Johnny Hughes wrote:
> > On 07/26/2016 11:44 PM, geo wrote:
> >> On 07/26/16 22:22, Johnny Hughes wrote:
> >> <<>>
> >>
> >> hello Johnny,
> >>
> >> glad you caught my post.
> >>
> >>> If you can not get that NIC working with the default kernel, you could
> >>> try the experimental kernel per the bottom of:
> >>>
> >>> https://wiki.centos.org/SpecialInterestGroup/AltArch/i386
> >>>
> >> --->
> >>
> >> thank you. just had a look at it again. read closer this time.
> >>
> >> may have another problem with install. started a third attempt to
> >> install around 2223 hrs.
> >>
> >> there seems to be a problem with installation after clicking out of
> >> software selection. seems to have hit a snag somewhere.
> >>
> >> 'installation source' and 'software selection' both have the triangle.
> >> both read in gray 'checking software dependencies...'.
> >>
> >> this is third round, thought i would let it try to run it's course to
> >> see if it might pull thru, but has not.
> >>
> >> now, just over and hour, it is same as other attempts. clicking on
> >> 'begin installation' does nothing, nor does clicking other selections,
> >> including 'quit'.
> >>
> >> i can 'f2' to root user prompt. not knowing what else to try, i tried
> >> 'top' to see if it showed changing. it does, but i can not get back to
> >> installation screen. holding  pressing one of the 'f' keys does
> >> bring up mouse pointer, but screen i am on does not change.
> >>
> >> typing in 'reboot' does reboot.
> >>
> >> suggestions?
> >>
> >> if you have called it a night, like do not reply in about 30 min, i will
> >> go back to command line and check just which 'f' keys does what and post
> >> back.
> >>
> >> thanks again for reply. greatly needed and much appreciate.
> >>
> >
> > If you are trying to use the NetInstall ISO and if you do not have a
> > network connection, that will not work (it requires a network install to
> > begin).
> >
> > If you install with the CentOS-7-i386-DVD-1511.iso instead, you can do
> > all installs without a network present.
> >
> --->
>
> CentOS-7-i386-DVD-1511.iso.
>
> have been trying to run gui install and beginning to believe that
> could be a part of problem.
>
> after sending last post, i did , did not run 'top', did
> go thru 'f' keys 3 thru 6. 6 is where pointer displays, is frozen,
> will not move, all  keys are locked like it is graphic. even
> trying  fails.  does work.
>
> do recall from attempts 1 & 2 that when i tried , along bottom
> of screen the 'f' key functions is shown, plus text i do not recall.
>
> because of problems with gui, i am seriously considering text mode.
>
> last time i used text mode was early years of linux and with red hat.
>
> concern with text mode is this is hdd has 12 partitions that i need to
> maintain, so i need custom setup.
>
> also want to select all but last 2 selections of software for a
> workstation install.
>
> would there be any place that i can pull info for text mode so i will
> have an understanding of what i will be reading to make install.
>
> or, is there a way to run gui, but use a graphics mode other than what
> default is.
>
> ria, i have a felling that problem is with fact that vga is an amd/ati
> as shown in first post.
>
> if there is anything that by running install to lockup and going to cli
> would help solving problem, i am willing.
>
> again, thank you for reply, greatly appreciate.
>
>
> --
>
> peace out.
>
> CentOS GNU/Linux 6.8
>
> tc,hago.
>
> g
> .
>
> =+=
> Tired of having your microsoft os hacked?
> Change to Linux os, used by microsoft hackers.
> =+=
> in a world with out fences, who needs gates.
> =+=
>
> ___
> CentOS mailing list
> CentOS@centos.org
> https://lists.centos.org/mailman/listinfo/centos
>

Given what you tried so far I would, and have, start with cli build (text
build) and build up from there.  The GUI install is just a convenience.
The same packages can be added as groups one at a time until you have your
workstation.  Tedious but effective as you can trouble shoot issues one at
a time vs. full install everything that can go wrong etc. etc. Just my
$.02.  Good hunting.
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Re: [CentOS] installing centos 7 32 bit i386 to laptop

2016-07-27 Thread John Hodrien

On Wed, 27 Jul 2016, fred roller wrote:


Given what you tried so far I would, and have, start with cli build (text
build) and build up from there.  The GUI install is just a convenience.


I'd entirely go against that.  The text installer is a legacy tool that I'd
avoid whenever possible.  Kickstart/cmdline or GUI, but text is just there to
make you miserable.


The same packages can be added as groups one at a time until you have your
workstation.  Tedious but effective as you can trouble shoot issues one at
a time vs. full install everything that can go wrong etc. etc. Just my
$.02.  Good hunting.


Definitely try a minimal install and just confirm that fails too.

jh
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Re: [CentOS] installing centos 7 32 bit i386 to laptop

2016-07-27 Thread geo.inbox.ignored

hello fred. i thank you for reply.

On 07/27/2016 08:18 AM, fred roller wrote:
<<>>

> Given what you tried so far I would, and have, start with cli build (text
> build) and build up from there.  The GUI install is just a convenience.
> The same packages can be added as groups one at a time until you have your
> workstation.  Tedious but effective as you can trouble shoot issues one at
> a time vs. full install everything that can go wrong etc. etc. Just my
> $.02.  Good hunting.
>
--->

how about a $.05 if you answer next. ;-)

when you say cli build, are package names offered during cli build, ie,
asked and answered, or after reboot to install?

if yes, where do i find names for package groups?

is new boot level 3 or minimal level 5?

if level 3, yum install or get?

not being nosy, just want to know what is ahead.


thanks again for replying.

have a doctor's appointment around noon, will run cli after return.


-- 

peace out.

CentOS GNU/Linux 6.8

tc,hago.

g
.

=+=
Tired of having your microsoft os hacked?
Change to Linux os, used by microsoft hackers.
=+=
in a world with out fences, who needs gates.
=+=

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Re: [CentOS] installing centos 7 32 bit i386 to laptop

2016-07-27 Thread geo.inbox.ignored


On 07/27/2016 08:45 AM, John Hodrien wrote:
<>


> I'd entirely go against that.  The text installer is a legacy tool that
> I'd avoid whenever possible.

> Kickstart/cmdline or GUI, but text is just there to make you miserable.
>
--->

gui i pretty doing that now. :=)

> Definitely try a minimal install and just confirm that fails too.
>
--->

a minimal install is a good suggestion, as i do believe the ati vga
chip is a part of problem.

gui with previous installs has not been a problem. i believe that the
build of 7 was intended for newer systems and that old video drivers
have been dropped to make room for newer systems.

again, thanks for suggestions. all are welcome.


-- 

peace out.

CentOS GNU/Linux 6.8

tc,hago.

g
.

=+=
Tired of having your microsoft os hacked?
Change to Linux os, used by microsoft hackers.
=+=
in a world with out fences, who needs gates.
=+=

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Re: [CentOS] CentOS 6 and an SAS drive, hardware

2016-07-27 Thread Paul Heinlein

On Tue, 26 Jul 2016, John R Pierce wrote:


On 7/26/2016 2:56 PM, m.r...@5-cent.us wrote:

 Yeah, well, the thing is, for years I've just been shoving
 ordinary SATA drives into the same server, to use to copy from
 other machines via rsync, getting a drive ready to replace in
 another server. I've never had trouble with SATA. This is the
 first time with an SAS drive.


mixing SAS and SATA on the same backplane can be problematic, 
depending on the system.


Yep.

--
Paul Heinlein <> heinl...@madboa.com <> http://www.madboa.com/
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[CentOS] Mounting NFS subdirectories individually or just the parent?

2016-07-27 Thread Frank Thommen

Hello,

does it in any respect (throughput/performance, cpu load, I/O load, 
resilience, ...) matter, if one mounts subdirectories of an NFS (v3) 
export into separate directories or if one just mounts the parent directory?


I.e. like this:

  server:/export/base/a -> /mnt/a
  server:/export/base/b -> /mnt/b
  server:/export/base/c -> /mnt/c
  server:/export/base/d -> /mnt/d
  server:/export/base/e -> /mnt/e

or simply like this:

  server:/export/base   -> /mnt


I would guess, that it doesn matter at all, but at $work the standard 
setup on all cluster nodes is, to mount >20 subdirectories from the NFS 
server individually and the justification is, that is more performant 
and reliable.


Can this be confirmed (or denied)?

I couldn't find this method of "NFS performance tuning" mentioned 
anywhere and from a management perspective the sheer amount of mounted 
filesystems makes the list confusing and harder to troubleshoot.


Any thoughts?

Regards
frank


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Re: [CentOS] Mounting NFS subdirectories individually or just the parent?

2016-07-27 Thread Paul Heinlein

On Wed, 27 Jul 2016, Frank Thommen wrote:


Hello,

does it in any respect (throughput/performance, cpu load, I/O load, 
resilience, ...) matter, if one mounts subdirectories of an NFS (v3) export 
into separate directories or if one just mounts the parent directory?


I.e. like this:

 server: /export/base/a -> /mnt/a
 server: /export/base/b -> /mnt/b
 server: /export/base/c -> /mnt/c
 server: /export/base/d -> /mnt/d
 server: /export/base/e -> /mnt/e

or simply like this:

 server:/export/base   -> /mnt


Performance wise, any bottleneck will almost certainly be tied to the 
disks on the back end, not the nfs process itself.


There are a couple good reasons for splitting up the mounts:

1. They can have different export restrictions (e.g., for different
   client hosts, ro vs. rw permissions, user squashing).

2. /base/[a-e] live on different RAID arrays and might benefit from
   different management cycles; that'd also be a case where multiple
   exports might be a good idea. That said, I've never managed an
   exported filesystem consisting of different arrays; we've always
   exported at the RAID level or below.

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Re: [CentOS] Mounting NFS subdirectories individually or just the parent?

2016-07-27 Thread Sean Brisbane
There is a slight performance related reason for exporting disk partitions
individually, the performance boost is server-side as Paul says.  The
advantage is that the no_subtree_check can be used without any additional
security risk.

It is probably the case that the /export/base/a is a partition, is exported
with no_subtree_check, and therefore there is a small performance boost.

Preventing server side mount point traversal can also form part of a
security mechanism if servers have different security options for different
mount points, but in this case mounting server:/export/base wouldn't give
you the same client view of the filesystem tree as mounting each
individually if it worked at all.

Cheers,
Sean

On 27 July 2016 at 23:21, Paul Heinlein  wrote:

> On Wed, 27 Jul 2016, Frank Thommen wrote:
>
> Hello,
>>
>> does it in any respect (throughput/performance, cpu load, I/O load,
>> resilience, ...) matter, if one mounts subdirectories of an NFS (v3) export
>> into separate directories or if one just mounts the parent directory?
>>
>> I.e. like this:
>>
>>  server: /export/base/a -> /mnt/a
>>  server: /export/base/b -> /mnt/b
>>  server: /export/base/c -> /mnt/c
>>  server: /export/base/d -> /mnt/d
>>  server: /export/base/e -> /mnt/e
>>
>> or simply like this:
>>
>>  server:/export/base   -> /mnt
>>
>
> Performance wise, any bottleneck will almost certainly be tied to the
> disks on the back end, not the nfs process itself.
>
> There are a couple good reasons for splitting up the mounts:
>
> 1. They can have different export restrictions (e.g., for different
>client hosts, ro vs. rw permissions, user squashing).
>
> 2. /base/[a-e] live on different RAID arrays and might benefit from
>different management cycles; that'd also be a case where multiple
>exports might be a good idea. That said, I've never managed an
>exported filesystem consisting of different arrays; we've always
>exported at the RAID level or below.
>
> --
> Paul Heinlein <> heinl...@madboa.com <> http://www.madboa.com/
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Re: [CentOS] Thunderbird .desktop file is renamed in version 45.2

2016-07-27 Thread Kay Schenk

On 07/11/2016 09:45 PM, Johnny Hughes wrote:
> I was starting my Thunderbird via a script and I thought I would post
> that the name of the desktop file has changed to help anyone else who
> was running the desktop file from a script.
> 
> Old path was:
> 
> /usr/share/applications/mozilla-thunderbird.desktop
> 
> 
> New Path is:
> 
> /usr/share/applications/thunderbird.desktop
> 
> Thanks,
> 
> Johnny Hughes

Gee! I have been tearing my hair out with Thunderbird since the latest
update.
It seems no matter what I do from my gnome2 Application Preferences to
tell TB to use my default browser, firefox, pretty much NOTHING happens
to links in email unless FF is already open.

This new desktop file you referenced here actually works -- well mostly.
It at least asks me to choose an app for links and says I can change it
through prefences -- well now I can once it's entered SOMETHING.
There seems to be NO way to add default app. GRRR!

OK, at least this is a start. I have NO idea why the 45.2 TB has caused
so much grief!



-- 

MzK

"Time spent with cats is never wasted."
   -- Sigmund Freud



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[CentOS] LXC containers - systemd takes a long time to start

2016-07-27 Thread Anthony K
I've got a CentOS7 server (fully patched) and in it I'm running several 
LXC containers.  I've noticed that whenever I try to launch a service 
via `systemctl start ` soon after LXC boot, it will take 
~5 minutes before the prompt returns.  After that initial delay, 
starting/stopping/restarting services happens immediately.  It might be 
that this happens because the server is running a large number of (>20) 
containers.  On next reboot, I'll see if it has the same problem when I 
have just one container.


In the meantime, anyone else seen similar behavior?


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Re: [CentOS] LXC containers - systemd takes a long time to start

2016-07-27 Thread Anthony K

On 28/07/16 11:45, Anthony K wrote:
I've got a CentOS7 server (fully patched) and in it I'm running 
several LXC containers.  I've noticed that whenever I try to launch a 
service via `systemctl start ` soon after LXC boot, it 
will take ~5 minutes before the prompt returns.  After that initial 
delay, starting/stopping/restarting services happens immediately.  It 
might be that this happens because the server is running a large 
number of (>20) containers.  On next reboot, I'll see if it has the 
same problem when I have just one container.


In the meantime, anyone else seen similar behavior?


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Thought I'd emphasize that the problem exists inside the LXC Container - 
not the host!



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Re: [CentOS] installing centos 7 32 bit i386 to laptop

2016-07-27 Thread geo.inbox.ignored


On 07/26/16 13:04, geo.inbox.ignored wrote:
<>

install attempt #4 using _minimal_ install is now running.

there is a problem in that,

> 0e:00.0 Network controller: Realtek Semiconductor Co., Ltd. \
> RTL8187SE Wireless LAN Controller (rev 22)

is not recognized.

where as,

> 14:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. \
> RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 02)

is recognized.

will be adding repo as suggested by Johnny Hughes.

ooopppsss...

not there yet.


if life did not have problems, would it be any fun?

and then there are computers...

with default install, aka, command line...

tried it, not what is desired.

rebooted, selected 'CentOS release 6.8 (final) (on /dev/sda7)', and
got what i desired even less. :=\

  error: invalid file name 'CentOS^(2.6.32-642.3.1.el6.i686)'
  error: you need to load the kernel first.

select: 'Advanced options for CentOS release 6.8 (Final) (on /dev/sda7)',
selections are;

  5 (on /dev/sda7)
  5 (on /dev/sda7)

'5' what?

selecting either, i get above 2 errors again.

after applying the all mighty '3 fingers of death', i boot centos 6.8
live dvd to see if original files are still in boot partition.

after mounting boot partition, a study of files indicates that all 6.x
files are as should be. for some unknown reason, 7 32 bit does not
understand what they are.

of course is no 'CentOS^(2.6.32-642.3.1.el6.i686)', but there are all
of the '2.6.32-642.3.1.el6.i686' files for centos 6.8 final.

so now what? any suggestions for recovery?


-- 

peace out.

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Re: [CentOS] installing centos 7 32 bit i386 to laptop

2016-07-27 Thread John R Pierce

On 7/27/2016 7:58 PM, geo.inbox.ignored wrote:

install attempt #4 using_minimal_  install is now running.

there is a problem in that,


>0e:00.0 Network controller: Realtek Semiconductor Co., Ltd. \
> RTL8187SE Wireless LAN Controller (rev 22)

is not recognized.


I would not be surprised if the minimal install did not include wifi 
support, as wifi is quite complex and requires a lot of OS level support 
to operate.




--
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Re: [CentOS] installing centos 7 32 bit i386 to laptop

2016-07-27 Thread geo.inbox.ignored


On 07/27/16 22:05, John R Pierce wrote:
> On 7/27/2016 7:58 PM, geo.inbox.ignored wrote:
>> install attempt #4 using_minimal_  install is now running.
>>
>> there is a problem in that,
>>
 0e:00.0 Network controller: Realtek Semiconductor Co., Ltd. \
 RTL8187SE Wireless LAN Controller (rev 22)
>> is not recognized.
> 
> I would not be surprised if the minimal install did not include wifi 
> support, as wifi is quite complex and requires a lot of OS level support 
> to operate.
>
--->

good evening John.

interesting point you make. sounds very reasonable. i have never made
an install to a laptop with wifi before, minimal or full, so i have no
experiance.

have installed wifi to an established system, but that is whole
different pond to to play in.

there is an option to add additional networking, but does not seem to
apply to wifi, so i do not believe install i was using is wifi aware
and i need to pull iso Johnny referred me to.

intended to pull it after my last post. saw your post, felt i should
read it first.

have you tried the 7 32 bit?


-- 

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Re: [CentOS] installing centos 7 32 bit i386 to laptop

2016-07-27 Thread John R Pierce

On 7/27/2016 8:51 PM, geo.inbox.ignored wrote:

have you tried the 7 32 bit?


no, all my linux servers now are 64 bit, I havent' run a 32 bit system 
in a long time.



if your internet is working over ethernet, you should be able to install 
what you need via yum, rather than reinstall from different media...


yum install NetworkManager-wifi

and you should be able to configure wifi with the text mode 
NetworkManager tool, nmtui



yum groupinstall "GNOME Desktop"

should install the full Gnome desktop environment, and the gui 
NetworkManager, which is probably easier to use.




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Re: [CentOS] installing centos 7 32 bit i386 to laptop

2016-07-27 Thread geo.inbox.ignored


On 07/27/16 23:33, John R Pierce wrote:
> On 7/27/2016 8:51 PM, geo.inbox.ignored wrote:
>> have you tried the 7 32 bit?
>
> no, all my linux servers now are 64 bit, I havent' run a 32 bit system 
> in a long time.
>
>
> if your internet is working over ethernet, you should be able to install 
> what you need via yum, rather than reinstall from different media...
>
>  yum install NetworkManager-wifi
>
--->

this box has an on board network chip plus a nic and have a wifi
card i want to check out, thought i would try above and have ready for
next power down.

my surprise;

=+=+=
[geo@tower-1-i686 Documents]$ sudo yum install NetworkManager-wifi
[sudo] password for geo:
Loaded plugins: aliases, changelog, fastestmirror, ovl, presto, refresh-
  : packagekit, security, tmprepo, verify, versionlock
Setting up Install Process
Loading mirror speeds from cached hostfile
 * base: mirror.steadfast.net
 * epel: mirror.steadfast.net
 * extras: mirror.steadfast.net
 * updates: mirror.steadfast.net
extras   | 3.3 kB 00:00
updates  | 3.4 kB 00:00
updates/primary_db   | 1.3 MB 00:01
No package NetworkManager-wifi available.
Error: Nothing to do
[geo@tower-1-i686 Documents]$
=+=+=

so that may not work for laptop, ;-)

nbd. why should my luck change with installs. !LOL!

'one of those days' has been going on for over a week. 8=D

-- 

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Re: [CentOS] installing centos 7 32 bit i386 to laptop

2016-07-27 Thread John R Pierce

On 7/27/2016 9:58 PM, geo.inbox.ignored wrote:

$ sudo yum install NetworkManager-wifi
[sudo] password for geo:
Loaded plugins: aliases, changelog, fastestmirror, ovl, presto, refresh-
   : packagekit, security, tmprepo, verify, versionlock
Setting up Install Process
Loading mirror speeds from cached hostfile
  * base: mirror.steadfast.net
  * epel: mirror.steadfast.net
  * extras: mirror.steadfast.net
  * updates: mirror.steadfast.net
extras   | 3.3 kB 00:00
updates  | 3.4 kB 00:00
updates/primary_db   | 1.3 MB 00:01
No package NetworkManager-wifi available.


hmmm, that repository has no 32 bit RPMs.

http://mirror.steadfast.net/centos/7/os/

but they do exist here, http://mirror.centos.org/altarch/7/os/ and 
http://mirror.centos.org/altarch/7/updates/


so you might need to tweak your /etc/yum.repos.d files a bit.




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Re: [CentOS] installing centos 7 32 bit i386 to laptop

2016-07-27 Thread geo.inbox.ignored


On 07/28/16 00:16, John R Pierce wrote:
> On 7/27/2016 9:58 PM, geo.inbox.ignored wrote:
>> $ sudo yum install NetworkManager-wifi
>> [sudo] password for geo:
>> Loaded plugins: aliases, changelog, fastestmirror, ovl, presto, refresh-
>>: packagekit, security, tmprepo, verify, versionlock
>> Setting up Install Process
>> Loading mirror speeds from cached hostfile
>>   * base: mirror.steadfast.net
>>   * epel: mirror.steadfast.net
>>   * extras: mirror.steadfast.net
>>   * updates: mirror.steadfast.net
>> extras   | 3.3 kB 00:00
>> updates  | 3.4 kB 00:00
>> updates/primary_db   | 1.3 MB 00:01
>> No package NetworkManager-wifi available.
>
> hmmm, that repository has no 32 bit RPMs.
>
> http://mirror.steadfast.net/centos/7/os/
>
> but they do exist here, http://mirror.centos.org/altarch/7/os/ and 
> http://mirror.centos.org/altarch/7/updates/
>
> so you might need to tweak your /etc/yum.repos.d files a bit.
>
--->

will not be first time i have had to tweak repo files.

this is day is reminding me of my old saying;

   geo: why me Lord?
  Lord: why not george?
   geo: thank you anyway Lord.
  Lord: any time george.

anyway, this has been a long day after a short night of sleep.

went into kitchen to refresh my yeti mug and felt someone stepping
on my heels. turn around to see who, it was my butt dragging. 8=D

will put off getting lt back to booting 6.8 tomorrow. i have not run
'grub-mkconfg' for a few years, just hope i do not have problems
with that too.

btw, what area of western side do you roam?


-- 

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Re: [CentOS] installing centos 7 32 bit i386 to laptop

2016-07-27 Thread Ned Slider



On 28/07/16 06:16, John R Pierce wrote:

On 7/27/2016 9:58 PM, geo.inbox.ignored wrote:

$ sudo yum install NetworkManager-wifi
[sudo] password for geo:
Loaded plugins: aliases, changelog, fastestmirror, ovl, presto, refresh-
   : packagekit, security, tmprepo, verify, versionlock
Setting up Install Process
Loading mirror speeds from cached hostfile
  * base: mirror.steadfast.net
  * epel: mirror.steadfast.net
  * extras: mirror.steadfast.net
  * updates: mirror.steadfast.net
extras   | 3.3 kB
00:00
updates  | 3.4 kB
00:00
updates/primary_db   | 1.3 MB
00:01
No package NetworkManager-wifi available.


hmmm, that repository has no 32 bit RPMs.

http://mirror.steadfast.net/centos/7/os/

but they do exist here, http://mirror.centos.org/altarch/7/os/ and
http://mirror.centos.org/altarch/7/updates/

so you might need to tweak your /etc/yum.repos.d files a bit.




Additionally, most 3rd party repos (e.g, epel above) do not ship 32-bit 
packages for el7 as there is no 32-bit offering of RHEL from Red Hat. So 
not much point configuring them in yum.


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Re: [CentOS] installing centos 7 32 bit i386 to laptop

2016-07-27 Thread geo.inbox.ignored


On 07/28/16 01:13, Ned Slider wrote:
> On 28/07/16 06:16, John R Pierce wrote:
<<>>

>> hmmm, that repository has no 32 bit RPMs.
>>
>> http://mirror.steadfast.net/centos/7/os/
>>
>> but they do exist here, http://mirror.centos.org/altarch/7/os/ and
>> http://mirror.centos.org/altarch/7/updates/
>>
>> so you might need to tweak your /etc/yum.repos.d files a bit.
>>
>>
>
> Additionally, most 3rd party repos (e.g, epel above) do not ship 32-bit 
> packages for el7 as there is no 32-bit offering of RHEL from Red Hat. So 
> not much point configuring them in yum.
>
--->

hi Ned, you up late or early on your side of the pond?

the above altarch 7 repos links do have both 32 and 64 bit directories.

after reading John's post, i logged them and bookmarked both.

when i am trying something new, as i am now, i like to pull files so
i have them local. saves going back online if i mess something up and
have need again.


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