Re: [CentOS] CentOS 7.2 laptop wireless Intel Corporation Centrino Wireless-N 2230 (rev c4)

[Andreas Benzler]

In my test cases with the new kernels 4.4.6 and others that i can not remind:

- iMac 2010 here  an at home no problems (Atheros)
- Standard Desktop WLAN PCI Card  no Problem
- Laptop with intel 3160N no problems…

and 7.0 3.10 works for the most of here.


> Am 15.04.2016 um 16:01 schrieb Andreas Benzler :
> 
> Sorry the laptop only got WLAN intel 3160. So i can not test in your way…
> 
>> Am 15.04.2016 um 15:39 schrieb Andreas Benzler :
>> 
>> or you get the sources of those kernels and  take the  diff command…to find 
>> the different...
>> 
>> 
>>> Am 15.04.2016 um 15:35 schrieb Andreas Benzler :
>>> 
>>> 
>>> in the mean while i compiled a vanilla 4.4.7 (LTS) kernel.
>>> 
>>> http://centos.cms4all.org/centos/7/kernel/x86_64/
>>> 
>>> http://centos.cms4all.org/centos/7/kernel/noarch/
>>> 
>>> firmware from 16.03.2016. 
>>> 
>>> if someone like get a taste of…
>>> 
>>> if someone like get a taste of ? I'm interessed if it helps.
>>> 
>>> :-)
>>> 
>>> V-Server is up for some hours …
>>> 
>>> http://centos.cms4all.org/centos/7/kernel/SRPM/
>>> 
>>> are the sources ….
>>> 
>>> If distrust exists
>>> 
>>> Sincerely
>>> 
>>> Andy
>>> 
>>> 
 Am 15.04.2016 um 14:48 schrieb Brandon Vincent :
 
 On Fri, Apr 15, 2016 at 5:00 AM, Tony Molloy  wrote:
> So any ideas.
 
 I may have missed this but what model laptop are we talking about?
 
 Brandon Vincent
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[CentOS] xorg-x11-drv-amdgpu 1.1.0

[Andreas Benzler]

I have recently installed the xorg-11-drv-amdgpu 1.1.0 on my laptop. sources 
can found at.

http://centos.cms4all.org/centos/7/drivers/


http://centos.cms4all.org/centos/7/drivers/SRPM/xorg-x11-drv-amdgpu-1.1.0-1.el7.centos.src.rpm

Don’t forget that i use a newer mesa 11.1.2 and kernel 4.4.8 its. The kernel 
3.10 was
not build for that „new“ graphic cards“.

Sincerely

Andy Benzler
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[CentOS] FirewallD issue

[Marcin Trendota]

Hello everybody.

Recently i moved external interface to zone "external" on my home
server/router. And something strange is hapening. From my router
(chamber, CentOS7) everything is fine:

[root@chamber ~]# firewall-cmd --list-all
home (default, active)
  interfaces: enp3s0 tun0 virbr0
  sources:
  services: dhcp dhcpv6-client dns http https imaps ipp-client mdns nfs
samba samba-client vnc-server
  ports: 143/tcp 2/tcp
  masquerade: no
  forward-ports:
  icmp-blocks:
  rich rules:

[root@chamber ~]# firewall-cmd --list-all --zone=external
external (active)
  interfaces: enp1s0
  sources:
  services:
  ports: 2/tcp
  masquerade: yes
  forward-ports:
  icmp-blocks:
  rich rules:

[root@chamber ~]# nmap 10.0.49.14

Starting Nmap 6.40 ( http://nmap.org ) at 2016-04-21 11:57 CEST
Nmap scan report for 10.0.49.14
Host is up (0.00045s latency).
Not shown: 997 closed ports
PORTSTATE SERVICE
22/tcp  open  ssh
80/tcp  open  http
443/tcp open  https
MAC Address: 52:54:00:D6:6D:4A (QEMU Virtual NIC)

Nmap done: 1 IP address (1 host up) scanned in 0.18 seconds

But from host in another location (connected through VPN):

 moonwolf  ~  nmap 10.0.49.14

Starting Nmap 7.12 ( https://nmap.org ) at 2016-04-21 11:59 CEST
Note: Host seems down. If it is really up, but blocking our ping probes,
try -Pn
Nmap done: 1 IP address (0 hosts up) scanned in 0.06 seconds
 moonwolf  ~  nmap 10.0.49.14 -Pn -p22

Starting Nmap 7.12 ( https://nmap.org ) at 2016-04-21 11:59 CEST
Nmap scan report for svn.karakkhaz.dwarfs (10.0.49.14)
Host is up (0.015s latency).
PORT   STATESERVICE
22/tcp filtered ssh

Nmap done: 1 IP address (1 host up) scanned in 0.05 seconds

 moonwolf  ~  ping 10.0.49.14
PING 10.0.49.14 (10.0.49.14) 56(84) bytes of data.
64 bytes from 10.0.49.14: icmp_seq=1 ttl=62 time=9.45 ms
64 bytes from 10.0.49.14: icmp_seq=2 ttl=62 time=26.0 ms
^C
--- 10.0.49.14 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 9.459/17.754/26.050/8.296 ms

What could cause this behavior? Before interface move everything was
working as expected.

-- 
Over And Out
MoonWolf
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[CentOS] xorg-x11-drv-ati 7.7.0

[Andreas Benzler]

I have recently installed the xorg-11-drv-ati-7.7.0 on my iMac 2010. sources 
can found at.

https://lists.x.org/archives/xorg-announce/2016-April/002684.html 



http://centos.cms4all.org/centos/7/drivers/ 


http://centos.cms4all.org/centos/7/drivers/SRPM/xorg-x11-drv-ati-7.7.0-1.el7.centos.src.rpm
 



Don’t forget that i use a newer mesa 11.1.2 and kernel 4.4.8 its. The kernel 
3.10 was
not build for that „new“ graphic cards“. Only small tests are done, but works 
pretty much.

Sincerely

Andreas Benzler
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[CentOS] Problem updating ddclient

[Timothy Murphy]

when I ran "sudo yum update" on my CentOS-7.2.1511 today,
ddclient was updated to ddclient-3.8.3-1.el7.noarch (from 3.7.3),
and ddclient.conf was moved to ddclient.conf.rpmsave .

When I move it back, "sudo systemctl restart ddclient"
fails with the error (in "sudo journalctl -xe | grep ddclient")
  Apr 21 13:05:39 alfred.gayleard.eu.localdomain touch[8590]: /bin/touch: 
  cannot touch ‘/var/cache/ddclient/ddclient.cache’: Permission denied

I see that when updating ddclient a new group ddclient was created.
I've tried various methods, eg deleting ddclient.cache,
re-installing ddclient,
creating a new ddclient.cache owned by root.ddclient, etc,
but without success.
Running "sudo systemctl restart ddclient" either fails, or hangs.

Any advice gratefully received.

Is there a way to go back to the previous version of ddclient?
when I try "sudo yum downgrade ddclient-3.7.3" 
I'm told "No package ddclient-3.7.3 available"

-- 
Timothy Murphy  
gayleard /at/ eircom.net
School of Mathematics, Trinity College, Dublin


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[CentOS] how to debug authconfig execution

[Bernard Fay]

Hello group,

Does anyone have an idea how to debug the execution of authconfig?

I try to do many changes with authconfig but no files are modified.  It
seems authconfig does not have a verbose mode or any other way to know what
is going wrong with it?

Someone have an idea to find out what is going on with authconfig?

Thanks,
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[CentOS] Security patches list not showing

[Selvin Durai Masilamani]

Hi team,

Security patches isn't not showing from Centos 5,6 and 7. 

Tried Steps: 

First I installed yum install yum-security package

Then I tried yum update --security

But getting these message 

No need to update for security patches , 80 available

Thanks,
Selvin
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Re: [CentOS] Problem updating ddclient

[Timothy Murphy]

Timothy Murphy wrote:

> when I ran "sudo yum update" on my CentOS-7.2.1511 today,
> ddclient was updated to ddclient-3.8.3-1.el7.noarch (from 3.7.3),
> and ddclient.conf was moved to ddclient.conf.rpmsave .
> 
> When I move it back, "sudo systemctl restart ddclient"
> fails with the error (in "sudo journalctl -xe | grep ddclient")
>   Apr 21 13:05:39 alfred.gayleard.eu.localdomain touch[8590]: /bin/touch:
>   cannot touch ‘/var/cache/ddclient/ddclient.cache’: Permission denied
> 
> I see that when updating ddclient a new group ddclient was created.
> I've tried various methods, eg deleting ddclient.cache,
> re-installing ddclient,
> creating a new ddclient.cache owned by root.ddclient, etc,
> but without success.
> Running "sudo systemctl restart ddclient" either fails, or hangs.
> 
> Any advice gratefully received.
> 
> Is there a way to go back to the previous version of ddclient?
> when I try "sudo yum downgrade ddclient-3.7.3"
> I'm told "No package ddclient-3.7.3 available"

I've managed to return to the previous version,
by going to http://fr2.rpmfind.net/linux/rpm2html/search.php?query=ddclient
downloading ddclient-3.7.3-1.el5.rf.noarch.rpm ,
and running
 sudo yum downgrade ~/ddclient-3.7.3-2.el7.rf.noarch.rpm 

-- 
Timothy Murphy  
gayleard /at/ eircom.net
School of Mathematics, Trinity College, Dublin


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[CentOS] Apache logs missing

[Adrian Jenzer]

Hi all

I just saw that I miss some log files in /var/log/httpd. There is a gap in 
January/February2016, no logs are available for this period.
It seemed to work fine with the earlier logs as you can see.
Has someone an explanation for this?

It's a Centos 7.2 VM with Apache 2.4 running ownCloud only. Default logrotate 
config.

-rw-r--r--   1 root root 3367604 Apr 20 16:12 ssl_access_log
-rw-r--r--   1 root root   67982 Jul 12  2015 ssl_access_log-20150712.gz
-rw-r--r--   1 root root   43515 Jul 18  2015 ssl_access_log-20150719.gz
-rw-r--r--   1 root root   36096 Jul 26  2015 ssl_access_log-20150727.gz
-rw-r--r--   1 root root   25088 Aug  1  2015 ssl_access_log-20150802.gz
-rw-r--r--   1 root root   12733 Aug  9  2015 ssl_access_log-20150810.gz
-rw-r--r--   1 root root   89873 Aug 15  2015 ssl_access_log-20150816.gz
-rw-r--r--   1 root root   70627 Aug 23  2015 ssl_access_log-20150823.gz
-rw-r--r--   1 root root   91576 Aug 31  2015 ssl_access_log-20150831.gz
-rw-r--r--   1 root root  218188 Sep  6  2015 ssl_access_log-20150906.gz
-rw-r--r--   1 root root  181084 Sep 14  2015 ssl_access_log-20150914.gz
-rw-r--r--   1 root root  247666 Sep 20  2015 ssl_access_log-20150920.gz
-rw-r--r--   1 root root  221203 Sep 28  2015 ssl_access_log-20150928.gz
-rw-r--r--   1 root root  173962 Oct  4  2015 ssl_access_log-20151004.gz
-rw-r--r--   1 root root  131480 Oct 11  2015 ssl_access_log-20151011.gz
-rw-r--r--   1 root root  141485 Oct 19  2015 ssl_access_log-20151019.gz
-rw-r--r--   1 root root   89379 Oct 25 03:37 ssl_access_log-20151025.gz
-rw-r--r--   1 root root  149943 Nov  1 13:30 ssl_access_log-20151102.gz
-rw-r--r--   1 root root  150219 Nov  8 03:11 ssl_access_log-20151108.gz
-rw-r--r--   1 root root  131524 Nov 14 20:13 ssl_access_log-20151115.gz
-rw-r--r--   1 root root  153841 Nov 22 03:42 ssl_access_log-20151122.gz
-rw-r--r--   1 root root  134209 Nov 29 23:41 ssl_access_log-20151130.gz
-rw-r--r--   1 root root  336448 Dec  6 03:11 ssl_access_log-20151206.gz
-rw-r--r--   1 root root  357256 Dec 14 03:15 ssl_access_log-20151214.gz
-rw-r--r--   1 root root  354106 Dec 20 03:38 ssl_access_log-20151220.gz
-rw-r--r--   1 root root  204874 Dec 28 03:41 ssl_access_log-20151228.gz
-rw-r--r--   1 root root   13621 Jan  3 03:05 ssl_access_log-20160103.gz
-rw-r--r--   1 root root 4385823 Mar 27 04:19 ssl_access_log-20160327
-rw-r--r--   1 root root 4345075 Apr  4 03:40 ssl_access_log-20160404
-rw-r--r--   1 root root 4743540 Apr 10 03:04 ssl_access_log-20160410
-rw-r--r--   1 root root 6065044 Apr 17 03:20 ssl_access_log-20160417



Regards
Adrian Jenzer

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Re: [CentOS] Apache logs missing

[James Washington]

Adrian,

I’ve had huge problems with log rotate recently. For some reason, since the 
period you have mentioned, I have to restart rsyslog on my CentOS 6.7 servers 
after logrotate runs either through a cronjob or manually (even on the standard 
config). I’m not sure if you’ve experienced this to or whether they are linked 
- but there’s definitely been issues since January with logrotate. 

Kindest regards,

James Washington

On 21 April 2016 at 16:00:39, Adrian Jenzer (a.jen...@herzogdemeuron.com) wrote:

Hi all  

I just saw that I miss some log files in /var/log/httpd. There is a gap in 
January/February2016, no logs are available for this period.  
It seemed to work fine with the earlier logs as you can see.  
Has someone an explanation for this?  

It's a Centos 7.2 VM with Apache 2.4 running ownCloud only. Default logrotate 
config.  

-rw-r--r-- 1 root root 3367604 Apr 20 16:12 ssl_access_log  
-rw-r--r-- 1 root root 67982 Jul 12 2015 ssl_access_log-20150712.gz  
-rw-r--r-- 1 root root 43515 Jul 18 2015 ssl_access_log-20150719.gz  
-rw-r--r-- 1 root root 36096 Jul 26 2015 ssl_access_log-20150727.gz  
-rw-r--r-- 1 root root 25088 Aug 1 2015 ssl_access_log-20150802.gz  
-rw-r--r-- 1 root root 12733 Aug 9 2015 ssl_access_log-20150810.gz  
-rw-r--r-- 1 root root 89873 Aug 15 2015 ssl_access_log-20150816.gz  
-rw-r--r-- 1 root root 70627 Aug 23 2015 ssl_access_log-20150823.gz  
-rw-r--r-- 1 root root 91576 Aug 31 2015 ssl_access_log-20150831.gz  
-rw-r--r-- 1 root root 218188 Sep 6 2015 ssl_access_log-20150906.gz  
-rw-r--r-- 1 root root 181084 Sep 14 2015 ssl_access_log-20150914.gz  
-rw-r--r-- 1 root root 247666 Sep 20 2015 ssl_access_log-20150920.gz  
-rw-r--r-- 1 root root 221203 Sep 28 2015 ssl_access_log-20150928.gz  
-rw-r--r-- 1 root root 173962 Oct 4 2015 ssl_access_log-20151004.gz  
-rw-r--r-- 1 root root 131480 Oct 11 2015 ssl_access_log-20151011.gz  
-rw-r--r-- 1 root root 141485 Oct 19 2015 ssl_access_log-20151019.gz  
-rw-r--r-- 1 root root 89379 Oct 25 03:37 ssl_access_log-20151025.gz  
-rw-r--r-- 1 root root 149943 Nov 1 13:30 ssl_access_log-20151102.gz  
-rw-r--r-- 1 root root 150219 Nov 8 03:11 ssl_access_log-20151108.gz  
-rw-r--r-- 1 root root 131524 Nov 14 20:13 ssl_access_log-20151115.gz  
-rw-r--r-- 1 root root 153841 Nov 22 03:42 ssl_access_log-20151122.gz  
-rw-r--r-- 1 root root 134209 Nov 29 23:41 ssl_access_log-20151130.gz  
-rw-r--r-- 1 root root 336448 Dec 6 03:11 ssl_access_log-20151206.gz  
-rw-r--r-- 1 root root 357256 Dec 14 03:15 ssl_access_log-20151214.gz  
-rw-r--r-- 1 root root 354106 Dec 20 03:38 ssl_access_log-20151220.gz  
-rw-r--r-- 1 root root 204874 Dec 28 03:41 ssl_access_log-20151228.gz  
-rw-r--r-- 1 root root 13621 Jan 3 03:05 ssl_access_log-20160103.gz  
-rw-r--r-- 1 root root 4385823 Mar 27 04:19 ssl_access_log-20160327  
-rw-r--r-- 1 root root 4345075 Apr 4 03:40 ssl_access_log-20160404  
-rw-r--r-- 1 root root 4743540 Apr 10 03:04 ssl_access_log-20160410  
-rw-r--r-- 1 root root 6065044 Apr 17 03:20 ssl_access_log-20160417  



Regards  
Adrian Jenzer  

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Re: [CentOS] FirewallD issue

[Gordon Messmer]

On 04/21/2016 03:11 AM, Marcin Trendota wrote:

But from host in another location (connected through VPN):


What host serves the VPN?  If it's another host, how is that host 
connected to the router?  If it's "chamber," what type of VPN is it?

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Re: [CentOS] Security patches list not showing

[Jon LaBadie]

On Thu, Apr 21, 2016 at 06:52:47PM +0530, Selvin Durai Masilamani wrote:
> Hi team,
> 
> Security patches isn't not showing from Centos 5,6 and 7. 
> 
> Tried Steps: 
> 
> First I installed yum install yum-security package
> 
> Then I tried yum update --security
> 
> But getting these message 
> 
> No need to update for security patches , 80 available
> 
My similar run said 2 packages available.

When I run without the --security option 2 packages are
available to update.

I presume those 80 available updates are not security related.

-- 
Jon H. LaBadie j...@jgcomp.com
 11226 South Shore Rd.  (703) 787-0688 (H)
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Re: [CentOS] Security patches list not showing

[Johnny Hughes]

On 04/21/2016 11:20 AM, Jon LaBadie wrote:
> On Thu, Apr 21, 2016 at 06:52:47PM +0530, Selvin Durai Masilamani wrote:
>> Hi team,
>>
>> Security patches isn't not showing from Centos 5,6 and 7. 
>>
>> Tried Steps: 
>>
>> First I installed yum install yum-security package
>>
>> Then I tried yum update --security
>>
>> But getting these message 
>>
>> No need to update for security patches , 80 available
>>
> My similar run said 2 packages available.
> 
> When I run without the --security option 2 packages are
> available to update.
> 
> I presume those 80 available updates are not security related.
> 

No,

CentOS Linux does NOT use the --security option of yum.

The reasons why have been discussed on this list several times.

You must use yum without the security options for CentOS Linux.

There is no way, other than maintaining your own repos and repodata, to
get only security updates in CentOS Linux.

There never has been a way to do that in any version of CentOS Linux.



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Re: [CentOS] Security patches list not showing

[Johnny Hughes]

On 04/21/2016 11:37 AM, Johnny Hughes wrote:
> On 04/21/2016 11:20 AM, Jon LaBadie wrote:
>> On Thu, Apr 21, 2016 at 06:52:47PM +0530, Selvin Durai Masilamani wrote:
>>> Hi team,
>>>
>>> Security patches isn't not showing from Centos 5,6 and 7. 
>>>
>>> Tried Steps: 
>>>
>>> First I installed yum install yum-security package
>>>
>>> Then I tried yum update --security
>>>
>>> But getting these message 
>>>
>>> No need to update for security patches , 80 available
>>>
>> My similar run said 2 packages available.
>>
>> When I run without the --security option 2 packages are
>> available to update.
>>
>> I presume those 80 available updates are not security related.
>>
> 
> No,
> 
> CentOS Linux does NOT use the --security option of yum.
> 
> The reasons why have been discussed on this list several times.
> 
> You must use yum without the security options for CentOS Linux.
> 
> There is no way, other than maintaining your own repos and repodata, to
> get only security updates in CentOS Linux.
> 
> There never has been a way to do that in any version of CentOS Linux.

Here is one such thread (for reference):

https://lists.centos.org/pipermail/centos-devel/2014-October/012052.html






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Re: [CentOS] FirewallD issue

[Marcin Trendota]

On Thursday 21 of April 2016 9:08:09 AM Gordon Messmer wrote:
> On 04/21/2016 03:11 AM, Marcin Trendota wrote:
> > But from host in another location (connected through VPN):
> What host serves the VPN?  If it's another host, how is that host
> connected to the router?  If it's "chamber," what type of VPN is it?

It's OpenVPN on chamber.

I've just noticed that it's similiar from home to the other location.
To clear things: 10.0.49.0/26 it's my home network
10.0.32.0/22 is one of VLANs in work ("the other location").

>From chamber:

[root@chamber ~]# nmap 10.0.32.7



 
Starting Nmap 6.40 ( http://nmap.org ) at 2016-04-21 22:12 CEST 


 
Nmap scan report for 10.0.32.7  


 
Host is up (0.053s latency).


 
Not shown: 988 closed ports 


 
PORT STATE SERVICE  


 
21/tcp   open  ftp  


 
25/tcp   open  smtp 


 
80/tcp   open  http 


 
110/tcp  open  pop3 


 
111/tcp  open  rpcbind  


 
143/tcp  open  imap 


 
389/tcp  open  ldap 


 
443/tcp  open  https


   

Re: [CentOS] FirewallD issue

[Gordon Messmer]

On 04/21/2016 01:33 PM, Marcin Trendota wrote:

It's OpenVPN on chamber.


What port is it using?  I don't see the standard port listed in your 
firewalld rules in either zone.


Also, you probably should specify tun+ instead of tun0, even if you 
think there will only be one tunnel up at any given time.

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[CentOS] what does firefox have against sans-serif

[Michael Hennebry]

I've been struggling to get Firefox to render text in a sans-serif font.
So far, I've only been able to do that by
setting the default font as sans-serif.
DejaVu Sans Mono and DajaVu Sans are the only other
listed fonts that I'm reasonalbly sure are sans-serif.
Helvetica and Arial are not there.

sans-serif does work on Konqueror.

Does anyone know how to affect the font-family on Firefox 38.7.0 ?

--
Michael   henne...@web.cs.ndsu.nodak.edu
"Sorry but your password must contain an uppercase letter, a number,
a haiku, a gang sign, a heiroglyph, and the blood of a virgin."
 --  someeecards
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Re: [CentOS] FirewallD issue

[Marcin Trendota]

On Thursday 21 of April 2016 2:37:49 PM Gordon Messmer wrote:
> On 04/21/2016 01:33 PM, Marcin Trendota wrote:
> > It's OpenVPN on chamber.
> What port is it using?  I don't see the standard port listed in your
> firewalld rules in either zone.

1194/udp. I added service openvpn and port 1194/udp (just to be sure) to 
both zones - no change.

[root@chamber openvpn]# firewall-cmd --list-all
home (default, active)
  interfaces: enp3s0 tun0 vbr0 virbr0 vnet0 vnet1
  sources: 
  services: dhcp dhcpv6-client dns http https imaps ipp-client mdns nfs 
openvpn samba samba-client vnc-server
  ports: 143/tcp 2/tcp 1194/udp
  masquerade: no
  forward-ports: 
  icmp-blocks: 
  rich rules: 

[root@chamber openvpn]# firewall-cmd --list-all --zone=external
external (active)
  interfaces: enp1s0
  sources: 
  services: openvpn
  ports: 2/tcp 1194/udp
  masquerade: yes
  forward-ports: 
  icmp-blocks: 
  rich rules: 

> Also, you probably should specify tun+ instead of tun0, even if you
> think there will only be one tunnel up at any given time.

Specify where?

Despite the fact than i can't scan their ports, i'm able to ping those 
hosts.

Maybe it's not firewalld related? I can scan ports from chamber (home 
router). I'll try tcpdump maybe, to see what is going on with packets?

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Re: [CentOS] Dual boot C7 with Window 10

[Chris Murphy]

On Tue, Apr 19, 2016 at 5:42 AM, Jerry Geis  wrote:
> I have a laptop with windows 10.
> I went into the Windows disk manager and shrunk the volume
> to make room for C7. That worked.
>
> I also changed the BIOS from secure boot to "both" (secure/legacy)

Both is a problem. There's no practical way for an installer to
support both. Basically it makes the computer UEFI for Windows and
BIOS for CentOS 7 instead of UEFI for both.

>
> I installed C7, went fine. About the time it was done I realized I never
> saw anything about "other" boot options (seems I saw that in the past).
>
> Anyway sure enough, got done and C7 boots fine - no option there for
> Windows.  I did searching and found I needed to add to the
> /etc/grub.d/40_custom the following:
> menuentry "Windows 10" {
> set root='(hd0,1)'
> chainloader +1
> }
>
> then re-run the grub2-mkconfig -o /boot/grub2/grub.cfg
>
> I then rebooted and sure enough I got the menu item for "Windows 10"
> however when I select it it does not boot.
>
> How do I get Windows 10 to boot again ?

You'll have to use the firmware's boot manager. The legacy mode
enables a compatibility support module (CSM) so that UEFI presents a
faux-BIOS to the operating system, Cent OS in this case. So Cent OS
thinks it's on a BIOS system, and installs a BIOS based bootloader. A
BIOS bootloader cannot chainload a UEFI bootloader.

What you should revert back to UEFI only, with Secure Boot enabled,
and reinstall CentOS, deleting the previous partition/mount points
including the BIOS Boot partition that was created for CentOS's
bootloader.

The gotcha is that with Secure Boot enabled, the CentOS GRUB-efi
package doesn't support chainloading the Windows bootloader. This is
getting fixed in Fedora 24 but I have no idea how long it'll take to
get to CentOS 7. You could either disable Secure Boot (which I don't
recommend) or you switch between CentOS and Windows using the
firmware's boot manager. You'll have to figure out which F key brings
up the boot manager. On my Intel NUC it's F10, *shrug*.

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Re: [CentOS] Dual boot C7 with Window 10

[Chris Murphy]

On Tue, Apr 19, 2016 at 10:53 AM,   wrote:
> Jerry Geis wrote:
>> Thanks...
>> I added the "insmod ntfs" re-ran config no boot...
>> I change the hd1 to hd3 re-ran config no boot...
>> This is what my partition table looks like.
>> # Start  EndSize  TypeName
>>  1 2048   534527260M  EFI System  EFI system
> partition 2   534528   567295 16M  Microsoft reser
> Microsoft reserved
>> partition
>>  3   567296525326335  250.2G  Microsoft basic Basic data
> partition 4998166528   1000214527   1000M  Windows recover Basic data
> partition 5525326336525330431  2M  BIOS boot parti
>>  6525330432965732351210G  Microsoft basic
>>  7965732352982509567  8G  Linux swap
>> Thoughts?
>
> I haven't been following this, and perhaps I'm being dense... but I see
> BIOS boot partition, and I see 8G of Linux swap... where's the Linux /boot
> and / partitions?
>
>  mark

CentOS 7 has inherited an old bug/bad design choice by parted
developers, where they decided to use the partition type GUID for
"basic data" that Microsoft came up with, rather than following the
UEFI spec and creating their own partition type GUID for Linux
filesystems. Presumably partition 3 is Windows on NTFS, and partition
6 is a conventional partition with combined /boot / and /home. Just a
guess.

It's not a bad idea to get gdisk on the system, and change the type
code for the linux partition to gdisk code 8300, which translates to
partition type GUID 0FC63DAF-8483-4772-8E79-3D69D8477DE4. Windows 10
will ignore this, where at least Windows 8 and older invited the user
to format anything with the "basic data" GUID that had a file system
it didn't recognize.


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Re: [CentOS] Suddenly increased my hard disk

[Chandran Manikandan]

Dear Friends,

Finally fixed my issue.
As you told i have unmount the external hard disk then i checked the
/bkhdd/backup folder.
I saw that 190GB backup tar.gz file then i deleted and again remount it.

Thanks a lot for your kind supporting to me to fix this issue.

Why it's happened like this environment and how to avoid it.


On Tue, Apr 19, 2016 at 10:16 AM, Gordon Messmer 
wrote:

> On Mon, Apr 18, 2016 at 6:23 PM, Robert Nichols
>  wrote:
> > lsof will show the sizes of the deleted files.
> >
> >  lsof | grep deleted | sort -k7n
>
> That's a reasonable G.D. answer.
>
> The only problem is that on my system, the default output includes a
> TID column that is present in only some of the lines, so the size
> column is 8 for many lines and 7 for the others, so sort doesn't work
> as expected unless you change lsof's output.
>
> And you probably should "grep ' (deleted)$' unless you want to see
> files like
> /home/gordon/.thunderbird/xxx.default/calendar-data/deleted.sqlite.
>
> Still, I guess I learned one thing.
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Re: [CentOS] FirewallD issue

[Chandran Manikandan]

Hi Marcin,
Please check your openvpn config file of Port number then check your
firewalld config on the same port allowed or not.

On Fri, Apr 22, 2016 at 6:28 AM, Marcin Trendota 
wrote:

> On Thursday 21 of April 2016 2:37:49 PM Gordon Messmer wrote:
> > On 04/21/2016 01:33 PM, Marcin Trendota wrote:
> > > It's OpenVPN on chamber.
> > What port is it using?  I don't see the standard port listed in your
> > firewalld rules in either zone.
>
> 1194/udp. I added service openvpn and port 1194/udp (just to be sure) to
> both zones - no change.
>
> [root@chamber openvpn]# firewall-cmd --list-all
> home (default, active)
>   interfaces: enp3s0 tun0 vbr0 virbr0 vnet0 vnet1
>   sources:
>   services: dhcp dhcpv6-client dns http https imaps ipp-client mdns nfs
> openvpn samba samba-client vnc-server
>   ports: 143/tcp 2/tcp 1194/udp
>   masquerade: no
>   forward-ports:
>   icmp-blocks:
>   rich rules:
>
> [root@chamber openvpn]# firewall-cmd --list-all --zone=external
> external (active)
>   interfaces: enp1s0
>   sources:
>   services: openvpn
>   ports: 2/tcp 1194/udp
>   masquerade: yes
>   forward-ports:
>   icmp-blocks:
>   rich rules:
>
> > Also, you probably should specify tun+ instead of tun0, even if you
> > think there will only be one tunnel up at any given time.
>
> Specify where?
>
> Despite the fact than i can't scan their ports, i'm able to ping those
> hosts.
>
> Maybe it's not firewalld related? I can scan ports from chamber (home
> router). I'll try tcpdump maybe, to see what is going on with packets?
>
> --
> Over And Out
> MoonWolf
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Re: [CentOS] tune2fs: Filesystem has unsupported feature(s) while trying to open

[Chris Murphy]

On Tue, Apr 19, 2016 at 10:51 AM, Matt Garman  wrote:


># rpm -qf `which tune2fs`
>e2fsprogs-1.41.12-18.el6.x86_64

That's in the CentOS 6.4 repo, I don't see a newer one through 6.7 but
I didn't do a thorough check, just with google site: filter.


> # cat /etc/redhat-release
> CentOS release 6.5 (Final)

> # uname -a
> Linux lnxutil8 2.6.32-504.12.2.el6.x86_64 #1 SMP Wed Mar 11 22:03:14
> UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

And that's a centosplus kernel in the 6.6 repo; while the regular
kernel for 6.7 is currently kernel-2.6.32-573.22.1.el6.src.rpm. So I'm
going to guess you'd have this problem even if you weren't using the
centosplus kernel.

I suggest you do a yum upgrade anyway, 6.7 is current, clean it up,
test it, and then while chances are it's still a problem, then it's
probably a legit bug worth filing. In the meantime you'll have to
upgrade your e2fsprogs yourself.


> I did a little web searching on this, most of the hits were for much
> older systems, where (for example) the e2fsprogs only supported up to
> ext3, but the user had an ext4 filesystem.  Obviously that's not the
> case here.  In other words, the filesystem was created with the
> mkfs.ext4 binary from the same e2fsprogs package as the tune2fs binary
> I'm trying to use.
>
> Anyone ever seen anything like this?

Well the date of the kernel doesn't tell the whole story, so you need
a secret decoder ring to figure out what's been backported into this
distro kernels. There's far far less backporting happening in user
space tools. So it's not difficult for them to get stale when the
kernel is providing new features. But I'd say the kernel has newer
features than the progs supports and the progs are too far behind.

And yes, this happens on the XFS list and the Btrfs list too where
people are using old progs with new kernels and it can be a problem.
Sometimes new progs and old kernels are a problem too but that's less
common.


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Re: [CentOS] Suddenly increased my hard disk

[John R Pierce]

On 4/21/2016 7:49 PM, Chandran Manikandan wrote:

Finally fixed my issue.
As you told i have unmount the external hard disk then i checked the
/bkhdd/backup folder.
I saw that 190GB backup tar.gz file then i deleted and again remount it.

Thanks a lot for your kind supporting to me to fix this issue.

Why it's happened like this environment and how to avoid it.



don't write to mount points when they aren't mounted, the files get 
written to the file system.  and don't create any directories in the 
mount point...   like, if you were mounting /dev/sdb1 as /bkhdd then on 
the root file ssytem (without that mount) there should never have been 
any /bkhdd/backup directory.   in fact /bkhdd should not be writable by 
your user processes.


I remember older Unix systems would refuse to mount a file system to a 
non-empty directory, for exactly this reason, it hides stuff thats 
already there.




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Re: [CentOS] Suddenly increased my hard disk

[Valeri Galtsev]

On Thu, April 21, 2016 10:23 pm, John R Pierce wrote:
> On 4/21/2016 7:49 PM, Chandran Manikandan wrote:
>> Finally fixed my issue.
>> As you told i have unmount the external hard disk then i checked the
>> /bkhdd/backup folder.
>> I saw that 190GB backup tar.gz file then i deleted and again remount it.
>>
>> Thanks a lot for your kind supporting to me to fix this issue.
>>
>> Why it's happened like this environment and how to avoid it.
>
>
> don't write to mount points when they aren't mounted, the files get
> written to the file system.  and don't create any directories in the
> mount point...   like, if you were mounting /dev/sdb1 as /bkhdd then on
> the root file ssytem (without that mount) there should never have been
> any /bkhdd/backup directory.   in fact /bkhdd should not be writable by
> your user processes.

John, thanks for reminding this to all of us, I for one keep forgetting
about it (at least if I'm not dealing with it myself which usually acts as
a federal offense on me ;-) I know one Linux admin who removes write bit
from mount points.

Valeri

>
> I remember older Unix systems would refuse to mount a file system to a
> non-empty directory, for exactly this reason, it hides stuff thats
> already there.
>
>
>
> --
> john r pierce, recycling bits in santa cruz
>
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Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247

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Re: [CentOS] Suddenly increased my hard disk

[Rob Kampen]

On 04/22/2016 03:34 PM, Valeri Galtsev wrote:

On Thu, April 21, 2016 10:23 pm, John R Pierce wrote:

On 4/21/2016 7:49 PM, Chandran Manikandan wrote:

Finally fixed my issue.
As you told i have unmount the external hard disk then i checked the
/bkhdd/backup folder.
I saw that 190GB backup tar.gz file then i deleted and again remount it.

Thanks a lot for your kind supporting to me to fix this issue.

Why it's happened like this environment and how to avoid it.


don't write to mount points when they aren't mounted, the files get
written to the file system.  and don't create any directories in the
mount point...   like, if you were mounting /dev/sdb1 as /bkhdd then on
the root file ssytem (without that mount) there should never have been
any /bkhdd/backup directory.   in fact /bkhdd should not be writable by
your user processes.

John, thanks for reminding this to all of us, I for one keep forgetting
about it (at least if I'm not dealing with it myself which usually acts as
a federal offense on me ;-) I know one Linux admin who removes write bit
from mount points.
I usually put a file with a name like "mount point for /dev/mdxyz" into 
that mount point folder just in case I fail to mount it. Then when you 
do a ls or ll it shows me I have a problem.

Valeri


I remember older Unix systems would refuse to mount a file system to a
non-empty directory, for exactly this reason, it hides stuff thats
already there.



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Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247

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