[CentOS] Thunderbird vs. Evolution vs. OwnCloud

[Nicolas Kovacs]

Hi,

I'm currently using Thunderbird synced to OwnCloud on my main
workstation running Slackware64 14.1. I just installed CentOS 7 on my
Asus S300 laptop. It's running nicely, and I'm spending some time
getting acquainted with it.

I wonder if I should stick with Thunderbird or go with the default
Evolution application, since this seems to be better integrated into the
desktop, namely the calendar function.

On the other hand, it seems like you have to jump through burning loops
to connect Evolution to OwnCloud.

What are your experiences with these two clients and OwnCloud? Any
suggestions?

Cheers,

Niki Kovacs
-- 
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Re: [CentOS] FireFox and Plugins

[Alice Wonder]

On 11/02/2016 09:37 PM, Alice Wonder wrote:

While doing a browser fingerprinting survey, I was quite surprised to
see I actually have a FireFox plugin installed.

The culprit is

/usr/lib64/mozilla/plugins/librhythmbox-itms-detection-plugin.so

It appears that whoever maintains the rhythmbox RPM has chosen not to
package the browser plugin separately like it probably should be. So if
I have the rhythmbox RPM installed, I have the plugin.

This is rather worrisome because I can find no trace of the plugin in
the Mozilla preferences panel, so if it is there it is very well hidden
and if it really isn't there, it can't be disabled there.

Is there some kind of blacklist file I can put in
/usr/lib64/mozilla/plugins/ or ~/.mozilla/plugins/ to specifically tell
FireFox not to load that plugin, or do I have to uninstall rhythmbox?

Thank you for suggestions.

PS does anyone actually have a real world use for an itms detection plugin?
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I added this bugzilla -

https://bugzilla.redhat.com/show_bug.cgi?id=1391323
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Re: [CentOS] FireFox and Plugins

[John R Pierce]

On 11/2/2016 9:37 PM, Alice Wonder wrote:


PS does anyone actually have a real world use for an itms detection 
plugin?


it appears to be used for playing itunes format multimedia embedded on 
websites



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[CentOS] FireFox and Plugins

[Alice Wonder]

While doing a browser fingerprinting survey, I was quite surprised to 
see I actually have a FireFox plugin installed.


The culprit is

/usr/lib64/mozilla/plugins/librhythmbox-itms-detection-plugin.so

It appears that whoever maintains the rhythmbox RPM has chosen not to 
package the browser plugin separately like it probably should be. So if 
I have the rhythmbox RPM installed, I have the plugin.


This is rather worrisome because I can find no trace of the plugin in 
the Mozilla preferences panel, so if it is there it is very well hidden 
and if it really isn't there, it can't be disabled there.


Is there some kind of blacklist file I can put in 
/usr/lib64/mozilla/plugins/ or ~/.mozilla/plugins/ to specifically tell 
FireFox not to load that plugin, or do I have to uninstall rhythmbox?


Thank you for suggestions.

PS does anyone actually have a real world use for an itms detection plugin?
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Re: [CentOS] Centos OS Crash Recovery, Inquiry.

[Robert Nichols]

On 11/02/2016 08:46 PM, Christopher G. Halnin wrote:


As I have mentioned in my previous email, is there a way to recover
or bring back to life a crashed Centos OS after doing a Hard Driver
repartition or resizing?


Possibly. It depends on how the disk was previously arranged, what
filesystems are in use, and exactly what you did to get to the
current state.

If the data is really important, professional data recovery would
be appropriate. A mailing list isn't a great place to carry on
such a conversation. A more appropriate venue would be
www.linuxquestions.org .

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Re: [CentOS] Centos OS Crash Recovery, Inquiry.

[fred roller]

On Wed, Nov 2, 2016 at 10:51 PM, fred roller  wrote:

> There is software out there which will rebuild.  It is advanced level, so
> I would concur with the others to take it to a professional data recovery
> service.  Most importantly at this moment is to remove the hard drive, or
> at least shut down the server to minimize the read/write to the disk.  The
> more writes done the less likely recovery will be possible.  Also, know
> whether you just want to recover data or rebuild the OS structure.  Former
> is easier/cheaper than the latter in most cases.
>
> -- Fred
>
> On Wed, Nov 2, 2016 at 10:20 PM, Keith Keller <
> kkel...@wombat.san-francisco.ca.us> wrote:
>
>> On 2016-11-03, Christopher G. Halnin  wrote:
>> >
>> > Does it have an automatic backup system?
>>
>> Not out of the box.  If the drive is not usable in its current state,
>> and you do not have backups, you may need to bring it to a professional
>> drive recovery shop.
>>
>> --keith
>>
>> --
>> kkel...@wombat.san-francisco.ca.us
>>
>>
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>>
>
>

apologies on the top posting.
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Re: [CentOS] Centos OS Crash Recovery, Inquiry.

[fred roller]

There is software out there which will rebuild.  It is advanced level, so I
would concur with the others to take it to a professional data recovery
service.  Most importantly at this moment is to remove the hard drive, or
at least shut down the server to minimize the read/write to the disk.  The
more writes done the less likely recovery will be possible.  Also, know
whether you just want to recover data or rebuild the OS structure.  Former
is easier/cheaper than the latter in most cases.

-- Fred

On Wed, Nov 2, 2016 at 10:20 PM, Keith Keller <
kkel...@wombat.san-francisco.ca.us> wrote:

> On 2016-11-03, Christopher G. Halnin  wrote:
> >
> > Does it have an automatic backup system?
>
> Not out of the box.  If the drive is not usable in its current state,
> and you do not have backups, you may need to bring it to a professional
> drive recovery shop.
>
> --keith
>
> --
> kkel...@wombat.san-francisco.ca.us
>
>
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Re: [CentOS] Centos OS Crash Recovery, Inquiry.

[Phil Wyett]

On Wed, 2016-11-02 at 21:46 -0400, Christopher G. Halnin wrote:
> Dear Sir/s, 
> 
> As I have mentioned in my previous email, is there a way to recover or bring 
> back to life a crashed Centos OS after doing a Hard Driver repartition or 
> resizing? 
> 
> Thanks. 
> 
> Regards, 
> 
> CHRIS 

Hi,

For fuller information that may allow someone too help.

What version of CentOS?
LVM or standard partitioning?
Method (commands etc.) for resize that ultimately failed?

Regards

Phil

-- 

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Re: [CentOS] Centos OS Crash Recovery, Inquiry.

[Keith Keller]

On 2016-11-03, Christopher G. Halnin  wrote:
>
> Does it have an automatic backup system?

Not out of the box.  If the drive is not usable in its current state,
and you do not have backups, you may need to bring it to a professional
drive recovery shop.

--keith

-- 
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Re: [CentOS] Centos OS Crash Recovery, Inquiry.

[Eero Volotinen]

there is no such as automatic backup.

if you are not familiar with system, you should hire consult and fast to
minimize damages.

doing low level disk level operations to system.. is very.. dangerous
without knowledge

Eero

3.11.2016 4.07 ap. "Christopher G. Halnin" 
kirjoitti:

> Actually, I am not sure if we have a backup, because honestly, I am not
> that very much familiar with Centos. We use it for our mail sever for
> zimbra and other web servers but after setting it up, as long it is working
> just fine we don't do any other thing.
>
> Does it have an automatic backup system? And if it does, how can we use it
> to restore it back?
>
> Thanks.
>
> Regards,
>
> CHRIS
>
> - Original Message -
> From: "Eero Volotinen" 
> To: "CentOS mailing list" 
> Sent: Wednesday, November 2, 2016 7:00:16 PM
> Subject: Re: [CentOS] Centos OS Crash Recovery, Inquiry.
>
> yes there is. restore system from backups.
>
> eero
>
> 3.11.2016 3.47 ap. "Christopher G. Halnin" 
> kirjoitti:
>
> > Dear Sir/s,
> >
> > As I have mentioned in my previous email, is there a way to recover or
> > bring back to life a crashed Centos OS after doing a Hard Driver
> > repartition or resizing?
> >
> > Thanks.
> >
> > Regards,
> >
> > CHRIS
> > ___
> > CentOS mailing list
> > CentOS@centos.org
> > https://lists.centos.org/mailman/listinfo/centos
> >
> ___
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Re: [CentOS] Centos OS Crash Recovery, Inquiry.

[Christopher G. Halnin]

Actually, I am not sure if we have a backup, because honestly, I am not that 
very much familiar with Centos. We use it for our mail sever for zimbra and 
other web servers but after setting it up, as long it is working just fine we 
don't do any other thing. 

Does it have an automatic backup system? And if it does, how can we use it to 
restore it back?

Thanks.

Regards,

CHRIS

- Original Message -
From: "Eero Volotinen" 
To: "CentOS mailing list" 
Sent: Wednesday, November 2, 2016 7:00:16 PM
Subject: Re: [CentOS] Centos OS Crash Recovery, Inquiry.

yes there is. restore system from backups.

eero

3.11.2016 3.47 ap. "Christopher G. Halnin" 
kirjoitti:

> Dear Sir/s,
>
> As I have mentioned in my previous email, is there a way to recover or
> bring back to life a crashed Centos OS after doing a Hard Driver
> repartition or resizing?
>
> Thanks.
>
> Regards,
>
> CHRIS
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Re: [CentOS] Centos OS Crash Recovery, Inquiry.

[Eero Volotinen]

yes there is. restore system from backups.

eero

3.11.2016 3.47 ap. "Christopher G. Halnin" 
kirjoitti:

> Dear Sir/s,
>
> As I have mentioned in my previous email, is there a way to recover or
> bring back to life a crashed Centos OS after doing a Hard Driver
> repartition or resizing?
>
> Thanks.
>
> Regards,
>
> CHRIS
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[CentOS] Centos OS Crash Recovery, Inquiry.

[Christopher G. Halnin]

Dear Sir/s, 

As I have mentioned in my previous email, is there a way to recover or bring 
back to life a crashed Centos OS after doing a Hard Driver repartition or 
resizing? 

Thanks. 

Regards, 

CHRIS 
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Re: [CentOS] tool for a comprehensive list of the storage structure

[Leon Fauster]

Am 02.11.2016 um 17:01 schrieb David Both :
> Try *lsblk -f*


Great. Thanks!

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Re: [CentOS] What is broken with fail2ban

[lejeczek]

on my one system I see something even weirder...

setroubleshoot[58420]: SELinux is preventing 
/usr/bin/python2.7 from getattr access on the file 
/usr/bin/rpm. For complete SELinux messages. run sealert -l 
892542a6-b3ea-48eb-b76f-cadffdbdbb84
Nov 02 22:21:27 rider.private.ccnr.ceb.private.cam.ac.uk 
python[58420]: SELinux is preventing /usr/bin/python2.7 from 
getattr access on the file /usr/bin/rpm.


Source Context
system_u:system_r:fail2ban_client_t:s0

Target Contextsystem_u:object_r:rpm_exec_t:s0
Target Objects/usr/bin/rpm [ file ]
Sourcefail2ban-client
Source Path   /usr/bin/python2.7

fail2ban wants to run rpm ???
unless some binaries I have mislabelled this would be 
suspicious, no??



On 20/08/16 13:46, Günther J. Niederwimmer wrote:

Hello List,

with CentOS 7.2 it is not longer possible to run fail2ban on a Server ?

I install a new CentOS 7.2 and the EPEL directory
yum install fail2ban

I don't change anything only I create a jail.local to enable the Filters
[sshd]
enabled = true

.
When I start afterward fail2ban
systemctl status fail2ban is clean

But systemctl status firewalld is broken

● firewalld.service - firewalld - dynamic firewall daemon
Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled; vendor
preset: enabled)
Active: active (running) since Sa 2016-08-20 12:08:27 CEST; 4min 50s ago
  Main PID: 13158 (firewalld)
CGroup: /system.slice/firewalld.service
└─13158 /usr/bin/python -Es /usr/sbin/firewalld --nofork --nopid

Aug 20 12:12:23 .xx.at firewalld[13158]: 2016-08-20 12:12:23 ERROR:
NOT_ENABLED
Aug 20 12:12:24 .xx.at firewalld[13158]: 2016-08-20 12:12:24 ERROR:
NOT_ENABLED
Aug 20 12:12:25 .xx.at firewalld[13158]: 2016-08-20 12:12:25 ERROR:
NOT_ENABLED
Aug 20 12:12:27 .xx.at firewalld[13158]: 2016-08-20 12:12:27 ERROR:
NOT_ENABLED
Aug 20 12:12:27 .xx.at firewalld[13158]: 2016-08-20 12:12:27 ERROR:
NOT_ENABLED
Aug 20 12:12:28 .xx.at firewalld[13158]: 2016-08-20 12:12:28 ERROR:
NOT_ENABLED
Aug 20 12:12:29 .xx.at firewalld[13158]: 2016-08-20 12:12:29 ERROR:
NOT_ENABLED
Aug 20 12:12:30 .xx.at firewalld[13158]: 2016-08-20 12:12:30 ERROR:
NOT_ENABLED
Aug 20 12:12:31 .xx.at firewalld[13158]: 2016-08-20 12:12:31 ERROR:
NOT_ENABLED
Aug 20 12:12:31 .xx.at firewalld[13158]: 2016-08-20 12:12:31 ERROR:
NOT_ENABLED

Have any a Idea what is broken ?

ipset, iptables, fail2ban ?



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Re: [CentOS] how to install postgresql ip4r

[John R Pierce]

On 11/2/2016 1:49 PM, Jason Welsh wrote:

on the old postgresql that comes with centos 6?
Ive asked google over and over and he wont tell me. :(
(im trying to install it as a requirement for NIPAP) 


I don't think Postgres 8.4 has the infrastructure that ip4r extension 
requires.


but the ip4r release notes suggest...

make NO_EXTENSION=1
make NO_EXTENSION=1 install

then

psql -f /path/to/ip4r.sql dbname

to activate it in that dbname database.   they also mention there's 
quite a bit of stuff in ip4r that won't work on pre-9.1 Postgres due to 
lack of indexing support.




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[CentOS] how to install postgresql ip4r

[Jason Welsh]

on the old postgresql that comes with centos 6?
Ive asked google over and over and he wont tell me. :(
(im trying to install it as a requirement for NIPAP)

Jason

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[CentOS-announce] CESA-2016:2142 Important CentOS 5 bind97 Security Update

[Johnny Hughes]

CentOS Errata and Security Advisory 2016:2142 Important

Upstream details at : https://rhn.redhat.com/errata/RHSA-2016-2142.html

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

i386:
c965d86a42d44fd986446824dc2bdefe6da7efd43f1e7ed2b1180ffcd1540dfe  
bind97-9.7.0-21.P2.el5_11.9.i386.rpm
9133cefb2a0fb2b3ce49b83b6cea92e6592fca74893e336dfefc4d3af4d988af  
bind97-chroot-9.7.0-21.P2.el5_11.9.i386.rpm
310768962b680c5732f4cf5e330b2f18f49d6cb38b9f1f2d71f1f2402c4c00d0  
bind97-devel-9.7.0-21.P2.el5_11.9.i386.rpm
4d7dd3772d94904c954624caa7bb3ed1d97a2c5dfeb9b1c80ebb1b0346fdf32d  
bind97-libs-9.7.0-21.P2.el5_11.9.i386.rpm
0bd7ed7494b8f2d58956c70ad4952c310e93c37045314f914716c9a7ddf4b7c1  
bind97-utils-9.7.0-21.P2.el5_11.9.i386.rpm

x86_64:
401d615f35d1b18aaac9d23336d702fac97a784d7588131ccfd5e1d5df8fb393  
bind97-9.7.0-21.P2.el5_11.9.x86_64.rpm
c7de4a37902f58bc62b6cf41d56c0f177289799dcdfc1fd2d85ef852e1cefdab  
bind97-chroot-9.7.0-21.P2.el5_11.9.x86_64.rpm
310768962b680c5732f4cf5e330b2f18f49d6cb38b9f1f2d71f1f2402c4c00d0  
bind97-devel-9.7.0-21.P2.el5_11.9.i386.rpm
b3dabddc4f094b86194e6d6b81a86b646eeb4b8d414bcdc168a1da26c64e616e  
bind97-devel-9.7.0-21.P2.el5_11.9.x86_64.rpm
4d7dd3772d94904c954624caa7bb3ed1d97a2c5dfeb9b1c80ebb1b0346fdf32d  
bind97-libs-9.7.0-21.P2.el5_11.9.i386.rpm
8e01b316ed98030e42cd3c3afcced13cfe1d1ea0cc294bc968f062305c08bf16  
bind97-libs-9.7.0-21.P2.el5_11.9.x86_64.rpm
d19d762ae8e029ea095c66b62bf21a35020b031b48927b1a8f4252102adc5765  
bind97-utils-9.7.0-21.P2.el5_11.9.x86_64.rpm

Source:
902a4cbef8d0576c4b11c489ba7e7e225a2a179adadfe09a65f127d185d935f7  
bind97-9.7.0-21.P2.el5_11.9.src.rpm



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[CentOS-announce] CESA-2016:2141 Important CentOS 5 bind Security Update

[Johnny Hughes]

CentOS Errata and Security Advisory 2016:2141 Important

Upstream details at : https://rhn.redhat.com/errata/RHSA-2016-2141.html

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

i386:
3e2d58dc776ab061309890162ebae0b602c6d29e8a0c752f8e57e9f65d5cb390  
bind-9.3.6-25.P1.el5_11.11.i386.rpm
3ab9710ea4dc8cb9add7ed7f7e67ebc8065738c69854481ce7127fec0067e619  
bind-chroot-9.3.6-25.P1.el5_11.11.i386.rpm
aca3bedae5c7cdbdf6a08efb1e3a860119af0f45ddffcd73e0a88cc907ef0d92  
bind-devel-9.3.6-25.P1.el5_11.11.i386.rpm
42a8a2b0b0dfc88da188014819c7b4284fc74024aa778c6da60b2812d318efaa  
bind-libbind-devel-9.3.6-25.P1.el5_11.11.i386.rpm
63c70130106c809fdf2b66bde34b29dc357b80b7bbe9f5c86af8beb71eb4fe74  
bind-libs-9.3.6-25.P1.el5_11.11.i386.rpm
d0ed73a4ac94cff4b01b1e871eee57e01b5fc6cb229f01570bcaa731a061c465  
bind-sdb-9.3.6-25.P1.el5_11.11.i386.rpm
b74fdb5985e411a722d446501d4c1ded3aa64953e9de8a05c13115288d54ec2f  
bind-utils-9.3.6-25.P1.el5_11.11.i386.rpm
e678a6e7e6d217b5ff06b138dca80f1a69f893ef23b50389b007464f8589bff4  
caching-nameserver-9.3.6-25.P1.el5_11.11.i386.rpm

x86_64:
16b4239a8971548908848651973f2763fefeee417d9f99c91f9202823398d669  
bind-9.3.6-25.P1.el5_11.11.x86_64.rpm
be3cad068fb6962a495c4f232c6847fc0bba38b12758b81bbeaf98f93e2de613  
bind-chroot-9.3.6-25.P1.el5_11.11.x86_64.rpm
aca3bedae5c7cdbdf6a08efb1e3a860119af0f45ddffcd73e0a88cc907ef0d92  
bind-devel-9.3.6-25.P1.el5_11.11.i386.rpm
7d97fb0cd285fef2de6de156d611e485136d953a929e1e9c27fb99ef55febfda  
bind-devel-9.3.6-25.P1.el5_11.11.x86_64.rpm
42a8a2b0b0dfc88da188014819c7b4284fc74024aa778c6da60b2812d318efaa  
bind-libbind-devel-9.3.6-25.P1.el5_11.11.i386.rpm
27025805a55d9de451822969c129878fdc900c9cd4927c213be49f32038658d5  
bind-libbind-devel-9.3.6-25.P1.el5_11.11.x86_64.rpm
63c70130106c809fdf2b66bde34b29dc357b80b7bbe9f5c86af8beb71eb4fe74  
bind-libs-9.3.6-25.P1.el5_11.11.i386.rpm
b7f67e002209e7943a2b81593589b89f9d97ef61987f3cd045224d7f4f844372  
bind-libs-9.3.6-25.P1.el5_11.11.x86_64.rpm
d6480a340a4c5432133a6b615cd88c9b062887749ff8eb3069cf5662f7a689b0  
bind-sdb-9.3.6-25.P1.el5_11.11.x86_64.rpm
18aaaf91d307156f1a8d3c747f2ef7c07a8602f5a079b7284f9f6cd6833a70c5  
bind-utils-9.3.6-25.P1.el5_11.11.x86_64.rpm
d4b2cdf9ea23fef3d97213fba71fa3b96defb469c4eea15c82f0f9c836fa83a0  
caching-nameserver-9.3.6-25.P1.el5_11.11.x86_64.rpm

Source:
6a0a4af0486ffacd345255202bce1c61ce03e81387f70ac04c5de45b80a054fd  
bind-9.3.6-25.P1.el5_11.11.src.rpm



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[CentOS-announce] CESA-2016:2141 Important CentOS 6 bind Security Update

[Johnny Hughes]

CentOS Errata and Security Advisory 2016:2141 Important

Upstream details at : https://rhn.redhat.com/errata/RHSA-2016-2141.html

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

i386:
df523a82864171db1137fd9bdb3f68be01add333b3274295cda8801135f2b27a  
bind-9.8.2-0.47.rc1.el6_8.3.i686.rpm
b44cb15db8efa6f933534aa45ab95f2246dddfc88e39baa6ffce4d443dcb9d73  
bind-chroot-9.8.2-0.47.rc1.el6_8.3.i686.rpm
ead380fa773093d34a29d1b3bb4ffc085b9b4cd083319f962ea2b6fb63316005  
bind-devel-9.8.2-0.47.rc1.el6_8.3.i686.rpm
2ea5e764a72941f2b8500b707219b8a695d0c931ce04ecb878755aa39bc5  
bind-libs-9.8.2-0.47.rc1.el6_8.3.i686.rpm
1fdc17332283ae099bc65a171bf1bbf7ab31ea487503fe9838e07b8ba53525d3  
bind-sdb-9.8.2-0.47.rc1.el6_8.3.i686.rpm
09f2740ccaedce3134e41a817023d955a0f56e112f4b3526139db91090d76a23  
bind-utils-9.8.2-0.47.rc1.el6_8.3.i686.rpm

x86_64:
61d6b8544bade794c10e3ee3a52b694f8d4ae32cc9d70585289eb67738ef5123  
bind-9.8.2-0.47.rc1.el6_8.3.x86_64.rpm
e70a58174cc79ec54869e6aa5eaacd9eb91af5b3c5f42267fb81cf771e4a4a3c  
bind-chroot-9.8.2-0.47.rc1.el6_8.3.x86_64.rpm
ead380fa773093d34a29d1b3bb4ffc085b9b4cd083319f962ea2b6fb63316005  
bind-devel-9.8.2-0.47.rc1.el6_8.3.i686.rpm
443175aad1aab791e7e458690751ae577a33654ce9068efbbc49bdef8767ec60  
bind-devel-9.8.2-0.47.rc1.el6_8.3.x86_64.rpm
2ea5e764a72941f2b8500b707219b8a695d0c931ce04ecb878755aa39bc5  
bind-libs-9.8.2-0.47.rc1.el6_8.3.i686.rpm
103e669378991cd37514fa68b9f080cb2307b1feabbb94d67c923fd2e8b9b40c  
bind-libs-9.8.2-0.47.rc1.el6_8.3.x86_64.rpm
5db27dfafc208f92b547ad9aca04d44767abf475f575234dc919bea3b3b3372a  
bind-sdb-9.8.2-0.47.rc1.el6_8.3.x86_64.rpm
654d0c37d628a062b5c29beea67623848dc083a28b61b22aa846741d97b46add  
bind-utils-9.8.2-0.47.rc1.el6_8.3.x86_64.rpm

Source:
c3c8756fc27c0e4a61da8b38050ddfd2e099a7056a33aac452ed9dc984e33782  
bind-9.8.2-0.47.rc1.el6_8.3.src.rpm



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Re: [CentOS] latest documentation of OpenStack for CentOS7

[Gianluca Cecchi]

On Wed, Nov 2, 2016 at 2:34 PM, FrancisM  wrote:

> Dear Gianluca,
>
> Thanks for sharing this information it will take my whole week again to
> read the architecture and to understand it. By the way is it recommended to
> run the OpenStack on top of ESXi6 for testing purpose? When I provision the
> CentOS VMs for this test I append this line 'vhv.enable=true' inside the
> .vmx file to support Nested-Environment inside my ESXi6
>
> Its my first time to install and configure OpenStack so I'm wondering if I
> will hit some limitation in my VM environment if I setup this inside of VMs
> running in CentOS7.2
>
>
>
Yes, in the past I was able to create a nested Openstack "farm" (tested
both Grizzly and Icehouse versions) inside VSphere 5 using a vApp without
any problems.
In this vApp there were 13 VMs configured with CentOS 6: 3 compute nodes, 2
swift proxy nodes, 3 swift storage nodes, 3 controller nodes + 2 load
balancer nodes (to manage calls for swift storage and swift proxy nodes)
In ESXi 5 the steps to configure/enable nested hypervisors was different
than in ESXi 6.

Recently I was able to configure a nested oVirt environment in ESXi 6 and
basically I followed what described here.
http://nokitel.im/index.php/2016/03/21/nested-windows-hyper-v-server-2012-r2-on-vmware-vsphere-esxi-6/

and verifying that I was able to load kvm kernel module in my virtual
hypervisors and start qemu-kvm on them.
HIH,
Gianluca
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Re: [CentOS] Power Cut

[m . roth]

Leroy Tennison wrote:
> Don't know how much control you have over the remote situation but some
> UPSes have their own logs which should show this.  Also, some UPSes have
> add-in boards providing network connections with various services.  If
> these outages are costing enough money and the remote UPS doesn't have the
> add-in card but does have the capability of adding one you might be able
> to justify the expense.

Please don't top post.

Here at work, all our UPSes (mostly APC SmartUPS, but a few others, we use
apcupsd to monitor them, and cron jobs to log.

 mark
>
> - Original Message -
> From: "Ted Miller" 
> To: centos@centos.org, "Hadi Motamedi" 
> Sent: Tuesday, November 1, 2016 8:00:48 PM
> Subject: Re: [CentOS] Power Cut
>
> On 10/30/2016 01:12 AM, Hadi Motamedi wrote:
>> Dear All
>> I am using a centos server for cdr billing and mediation device on a
>> remote
>> network. I am experiencing problem that I am suspicious it comes from
>> main
>> supply power cut at the remote site. The power supply to the remote site
>> comes from battery charger that will be automatically switched in
>> circuit
>> under main supply power cut but cannot provide adequate power for more
>> than
>> 2 hours . I am suspicious that the remote system is suffering from many
>> frequent main supply power cut . Can you please do me favor and let me
>> know
>> if there is any log on my centos server that I can check to see if there
>> would be many frequent power cut there ?
>> Thank you for your time
>
> I have been experiencing a similar situation with a remote server, and
> found it much easier to use the command:
>last -x | tail -n50
> to see reboots.  You can tell a power cut because the end time for the
> previous boot up will be the same as the begin time for the next boot.  If
> it is an orderly shutdown, there will be a time gap that is logged.  As I
> understand it, the 'last' command uses the data stored in /var/log/wtmp,
> but that information is not in human-readable format.
> Ted Miller
> Indiana, USA
>
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Re: [CentOS] NetworkManager icon not showing

[Nicolas Kovacs]

Le 02/11/2016 à 17:16, Nicolas Kovacs a écrit :
> I just installed CentOS 7 on my Asus S300 laptop. Wireless was working
> OK at first, but now for mysterious reasons the NetworkManager icon
> seems to have disappeared from the notification area. When I click on
> that area, there's only information showing about sound, brightness,
> battery status and the connected user.
> 
> Which leaves me clueless. Any suggestions?

I'll answer that myself, since I just found the culprit. I removed the
avahi-autoipd package, without paying attention that this removed
NetworkManager.

Problem solved.

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[CentOS] NetworkManager icon not showing

[Nicolas Kovacs]

Hi,

I just installed CentOS 7 on my Asus S300 laptop. Wireless was working
OK at first, but now for mysterious reasons the NetworkManager icon
seems to have disappeared from the notification area. When I click on
that area, there's only information showing about sound, brightness,
battery status and the connected user.

Which leaves me clueless. Any suggestions?

Niki Kovacs
-- 
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7, place de l'église - 30730 Montpezat
Web  : http://www.microlinux.fr
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Re: [CentOS] CVE-2016-5195 DirtyCOW: Critical Linux Kernel Flaw

[Leonard den Ottolander]

Hello Christopher,

As Peter already pointed out it is not done to "hijack" existing
threads. It is confusing for the reader to have a different subject
discussed in an existing thread. Please start a new mail with a
descriptive subject line and send that to the list. Thank you.

Regards,
Leonard.

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Re: [CentOS] tool for a comprehensive list of the storage structure

[David Both]

Try *lsblk -f*

*[root@david ~]# lsblk -f
NAME   FSTYPE  LABEL 
UUID   MOUNTPOINT

sda
└─sda1 LVM2_member DWnNT0-aHQK-4zxn-cWIL-4iAQ-fboe-QaeyOK
  └─vg_Backups-Backups ext4Backups 
97baf04c-5dbb-43bd-9e56-b1c23e623ae4   /media/Backups

sdb
├─sdb1 ext4boot 
7186c3bc-ef06-4d34-9caf-3813ec004fbb   /boot

└─sdb2 LVM2_member FU8VMi-xM65-2xvC-tK3R-gO91-QGkY-O4y7WN
  ├─david1-usr ext4usr 
589c4eee-b3f7-4b68-9a20-f2d40b850798   /usr

  ├─david1-swapswap 9058afe6-43f3-4bcd-ba27-4a9f890cb295   [SWAP]
  ├─david1-rootext4root 
e2791469-362d-4c72-9172-c34b297886a0   /
  ├─david1-tmp ext4tmp 
0c140bc8-0785-4ec1-bc96-3839d9a66da5   /tmp
  └─david1-var ext4var 
c9e9d413-66bd-498a-9ddd-e21de4858f60   /var

sdcLVM2_member xVreaf-wkQ2-2rcS-2J8R-tj04-k2fW-D519iu
├─vg_david2-home   ext4home 
f4ba78b4-e735-43ca-8e73-047d25e15220   /home
├─vg_david2-stuff  ext4stuff 
b209b4ca-a016-4119-9941-fb4ef4102e06   /stuff
├─vg_david2-Virtualext4Virtual 
e74b2716-33a1-4339-95e7-6c63d64985aa   /Virtual
└─vg_david2-Pictures   ext4Pictures 
3c9f5705-2d6b-4c1f-9088-017c1f5c5891   /home/dboth/Pictures

sdd
└─sdd1 ext44T-Backup 
2e5ab1a4-686b-4f16-b3fb-99df1e9eb76f
sdeext3WD-500-USB 
06237914-457a-4a4e-9312-597c8d06c0f1
└─sde1 ext4WD-500GB-USB 
04fd97fe-d99b-4508-a968-e46b63c218b5 /run/media/dboth/WD-500GB-USB

sdh
└─sdh1 ext4USBbackup 
65d7d09e-e5ea-499f-b694-15ea2dcb60c4

sr0
sr1udf WD SmartWare 4AFDFB0F
*

**


On 11/02/2016 11:54 AM, Leon Fauster wrote:

I would like to have a smart cli tool, that shows a
comprehensive list about the local storage structure:

An output like:
  
  /srv

/dev/mapper/luks-f85b7a2c-...: UUID="ca924fad-..." TYPE="ext4"
  /dev/mapper/vg_internal_e-lv_internal_srv: UUID="f85b7a2c-..." 
TYPE="crypto_LUKS"
vg_internal_e
  /dev/md3: UUID="1Fi2Ex-..." TYPE="LVM2_member"
/dev/sda4: UUID="00029bd4-..." UUID_SUB="d0024074-..." LABEL="e.ld:3" 
TYPE="linux_raid_member"
/dev/sdb4: UUID="00029bd4-..." UUID_SUB="bf98fc79-..." LABEL="e.ld:3" 
TYPE="linux_raid_member"

beside blkid any other tool available?

--
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LF
   
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www.databook.bz - Home of the DataBook for Linux
DataBook is a Registered Trademark of David Both
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Re: [CentOS] tool for a comprehensive list of the storage structure

[Barak Korren]

>
> beside blkid any other tool available?
>
Try lsblk


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[CentOS] tool for a comprehensive list of the storage structure

[Leon Fauster]

I would like to have a smart cli tool, that shows a 
comprehensive list about the local storage structure:

An output like:
 
 /srv
   /dev/mapper/luks-f85b7a2c-...: UUID="ca924fad-..." TYPE="ext4"
 /dev/mapper/vg_internal_e-lv_internal_srv: UUID="f85b7a2c-..." 
TYPE="crypto_LUKS"
   vg_internal_e
 /dev/md3: UUID="1Fi2Ex-..." TYPE="LVM2_member"
   /dev/sda4: UUID="00029bd4-..." UUID_SUB="d0024074-..." 
LABEL="e.ld:3" TYPE="linux_raid_member"
   /dev/sdb4: UUID="00029bd4-..." UUID_SUB="bf98fc79-..." 
LABEL="e.ld:3" TYPE="linux_raid_member"

beside blkid any other tool available?

--
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LF
  
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Re: [CentOS] How to block routing/forwarding with firewalld

[lejeczek]

On 12/07/16 18:20, Jeff White wrote:
On CentOS 7 with firewalld I have a box with numerous 
interfaces acting as a NAT gateway.  This works but I 
noticed that it routes/forwards traffic not just from my 
internal zone to external zone but also between interfaces 
within the internal zone.  How can I prevent that traffic?


I've tried adding direct and rich rules to deny the 
traffic but it doesn't work.  Direct:


firewall-cmd --direct --add-rule ipv4 filter INPUT 0 -s 
10.110.4.0/22 -d 10.110.0.0/22 -j REJECT


That command works, and I see it in `iptables -L` but 
traffic is still allowed.  Rich:


# firewall-cmd --zone=trusted --add-rich-rule='rule 
family=ipv4 source address=10.110.4.0/22 destination 
address=10.110.0.0/22 reject'

Error: INVALID_RULE: destination action

I can't find any explanation of what that error means.  
So, how do you tell firewalld to stop forwarding traffic 
between interfaces?




# firewall-cmd --get-active-zones
public
  interfaces: ens161 ens193
trusted
  interfaces: ens192 ens224 ens256 lo

# firewall-cmd --list-all
public (default, active)
  interfaces: ens161 ens193
  sources:
  services: dhcpv6-client ssh
  ports:
  masquerade: yes
  forward-ports:
  icmp-blocks:
  rich rules:

yes, to me too it sort of defines basic logic - one would 
expect to be able with a "rich rule" to block/ban a host 
(actually there are quite few articles on the net stating it 
should be doing that)


public (active)
  interfaces: em3
  sources:
  services: dhcpv6-client ssh
  ports:
  masquerade: yes
  forward-ports:
  icmp-blocks:
  rich rules:
rule family="ipv4" source address="192.168.2.0/24" 
reject


yet host from 192.168.2.0/24 (which is firewalld's zone 
work) are able to masquerade and access all (in this case 
whole Internet) behind em3 interface.

It smells like a bug to me.


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Re: [CentOS] Power Cut

[Leroy Tennison]

Don't know how much control you have over the remote situation but some UPSes 
have their own logs which should show this.  Also, some UPSes have add-in 
boards providing network connections with various services.  If these outages 
are costing enough money and the remote UPS doesn't have the add-in card but 
does have the capability of adding one you might be able to justify the expense.

- Original Message -
From: "Ted Miller" 
To: centos@centos.org, "Hadi Motamedi" 
Sent: Tuesday, November 1, 2016 8:00:48 PM
Subject: Re: [CentOS] Power Cut

On 10/30/2016 01:12 AM, Hadi Motamedi wrote:
> Dear All
> I am using a centos server for cdr billing and mediation device on a remote
> network. I am experiencing problem that I am suspicious it comes from main
> supply power cut at the remote site. The power supply to the remote site
> comes from battery charger that will be automatically switched in circuit
> under main supply power cut but cannot provide adequate power for more than
> 2 hours . I am suspicious that the remote system is suffering from many
> frequent main supply power cut . Can you please do me favor and let me know
> if there is any log on my centos server that I can check to see if there
> would be many frequent power cut there ?
> Thank you for your time

I have been experiencing a similar situation with a remote server, and
found it much easier to use the command:
   last -x | tail -n50
to see reboots.  You can tell a power cut because the end time for the
previous boot up will be the same as the begin time for the next boot.  If
it is an orderly shutdown, there will be a time gap that is logged.  As I
understand it, the 'last' command uses the data stored in /var/log/wtmp,
but that information is not in human-readable format.
Ted Miller
Indiana, USA

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Re: [CentOS] latest documentation of OpenStack for CentOS7

[FrancisM]

Dear Gianluca,

Thanks for sharing this information it will take my whole week again to
read the architecture and to understand it. By the way is it recommended to
run the OpenStack on top of ESXi6 for testing purpose? When I provision the
CentOS VMs for this test I append this line 'vhv.enable=true' inside the
.vmx file to support Nested-Environment inside my ESXi6

Its my first time to install and configure OpenStack so I'm wondering if I
will hit some limitation in my VM environment if I setup this inside of VMs
running in CentOS7.2



~The future has many paths - choose wisely.. ./StarWars:CloneWars
~If you only do what you can do, you will never be more than you are..
./Master Shifu

On Wed, Nov 2, 2016 at 7:29 PM, Gianluca Cecchi 
wrote:

> On Wed, Nov 2, 2016 at 8:03 AM, FrancisM 
> wrote:
>
> > Hello All,
> >
> > Is there any good and complete material on how to install OpenStack in
> > CentOS out there that is updated that you can share to begin
> configuring. I
> > have followed some documentation in docs.openstack.org and its seems
> like
> > every time i follow one of the module I hit a lot of errors and could not
> > complete the installation.
> >
> >
> Hello,
> for updated documentation for the Openstack Platform product as provided by
> Red Hat starts here:
> https://access.redhat.com/documentation/en/red-hat-openstack-platform/
> and I think it could be a good starting point anyway.
>
> Please note that I think it requires a particular subscription and that you
> can try it for free going here:
> https://www.redhat.com/en/technologies/linux-platforms/openstack-platform
>
> If you want to use CentOS (or also base Red Hat OS but without RH Openstack
> channels) you can go with RDO project:
> https://www.rdoproject.org/
>
> It contains many docs too and in general you can choose differente repo,
> depending on which version of Openstack you want to deploy (current one is
> Newton now)
>
> For more detailed questions/clarifications, ecc I think you can go to:
> https://www.rdoproject.org/community/
> and see the appropriate communication channels
>
> HIH,
> Gianluca
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Re: [CentOS] CVE-2016-5195 DirtyCOW: Critical Linux Kernel Flaw

[Christopher G. Halnin]

Dear Sir/s,

What I mean is the system crashed where the OS is no longer booting properly. 
This started when I did a "partition resize".

Unfortunately, we don't have any backup of the system.

Thanks in advance for your help.

Regards,

CHRIS

- Original Message -
From: "Peter" 
To: "CentOS mailing list" 
Sent: Wednesday, November 2, 2016 12:52:03 PM
Subject: Re: [CentOS] CVE-2016-5195 DirtyCOW: Critical Linux Kernel Flaw

On 02/11/16 13:05, Richard wrote:
> RHEL/Centos-4 is EOL so wouldn't be updated regardless (at least
> under the normal EOL guidelines), but it is mentioned toward the
> bottom of that page under "Affected Packages State":
> 
>   Red Hat Enterprise Linux 4  kernel  Not affected

It is mentioned because RHEL4 is in extended life phase, so not EOL yet.

CentOS 4 is EOL as CentOS does not track the extended life phase of Red Hat.


Peter
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Re: [CentOS] Power Cut

[Leonard den Ottolander]

Hello Hadi,

On Sat, 2016-10-29 at 22:12 -0700, Hadi Motamedi wrote:
> I am suspicious that the remote system is suffering from many
> frequent main supply power cut . Can you please do me favor and let me know
> if there is any log on my centos server that I can check to see if there
> would be many frequent power cut there ?

People have already pointed you to dmesg and /var/log/messages.

To receive an email every time it gets rebooted put the below lines
in /etc/rc.d/rc.local (or wrap them in a script and add a reference to
that):

mail -s "Server  rebooted" y...@example.com << ENDOFMESSAGE
Server  has been rebooted.
ENDOFMESSAGE

This of course will only notify you after the fact and will be no good
if the system stays down.

Regards,
Leonard.

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[CentOS] Latest glusterfs 3.8.5 server not compatible with livbirt libgfapi access

[Radu Radutiu]

Hi,

After updating glusterfs server to 3.8.5 (from Centos-gluster-3.8.repo) the
KVM virtual machines (qemu-kvm-ev-2.3.0-31) that access storage using
libgfapi are no longer able to start. The libvirt log file shows:

[2016-11-02 14:26:41.864024] I [MSGID: 104045] [glfs-master.c:91:notify]
0-gfapi: New graph 73332d32-3937-3130-2d32-3031362d3131 (0) coming up
[2016-11-02 14:26:41.864075] I [MSGID: 114020] [client.c:2356:notify]
0-testvol-client-0: parent translators are ready, attempting connect on
transport
[2016-11-02 14:26:41.882975] I [rpc-clnt.c:1947:rpc_clnt_reconfig]
0-testvol-client-0: changing port to 49152 (from 0)
[2016-11-02 14:26:41.889362] I [MSGID: 114057]
[client-handshake.c:1446:select_server_supported_programs]
0-testvol-client-0: Using Program GlusterFS 3.3, Num (1298437), Version
(330)
[2016-11-02 14:26:41.890001] I [MSGID: 114046]
[client-handshake.c:1222:client_setvolume_cbk] 0-testvol-client-0:
Connected to testvol-client-0, attached to remote volume
'/data/brick1/testvol'.
[2016-11-02 14:26:41.890035] I [MSGID: 114047]
[client-handshake.c:1233:client_setvolume_cbk] 0-testvol-client-0: Server
and Client lk-version numbers are not same, reopening the fds
[2016-11-02 14:26:41.917990] I [MSGID: 114035]
[client-handshake.c:201:client_set_lk_version_cbk] 0-testvol-client-0:
Server lk version = 1
[2016-11-02 14:26:41.919289] I [MSGID: 104041]
[glfs-resolve.c:885:__glfs_active_subvol] 0-testvol: switched to graph
73332d32-3937-3130-2d32-3031362d3131 (0)
[2016-11-02 14:26:41.922174] I [MSGID: 114021] [client.c:2365:notify]
0-testvol-client-0: current graph is no longer active, destroying
rpc_client
[2016-11-02 14:26:41.922269] I [MSGID: 114018]
[client.c:2280:client_rpc_notify] 0-testvol-client-0: disconnected from
testvol-client-0. Client process will keep trying to connect to glusterd
until brick's port is available
[2016-11-02 14:26:41.922592] I [MSGID: 101053]
[mem-pool.c:617:mem_pool_destroy] 0-gfapi: size=84 max=1 total=1
[2016-11-02 14:26:41.923044] I [MSGID: 101053]
[mem-pool.c:617:mem_pool_destroy] 0-gfapi: size=188 max=2 total=2
[2016-11-02 14:26:41.923419] I [MSGID: 101053]
[mem-pool.c:617:mem_pool_destroy] 0-gfapi: size=140 max=2 total=2
[2016-11-02 14:26:41.923442] I [MSGID: 101053]
[mem-pool.c:617:mem_pool_destroy] 0-testvol-client-0: size=1324 max=2
total=5
[2016-11-02 14:26:41.923458] I [MSGID: 101053]
[mem-pool.c:617:mem_pool_destroy] 0-testvol-dht: size=1148 max=0 total=0
[2016-11-02 14:26:41.923546] I [MSGID: 101053]
[mem-pool.c:617:mem_pool_destroy] 0-testvol-dht: size=3380 max=2 total=5
[2016-11-02 14:26:41.923815] I [MSGID: 101053]
[mem-pool.c:617:mem_pool_destroy] 0-testvol-read-ahead: size=188 max=0
total=0
[2016-11-02 14:26:41.923832] I [MSGID: 101053]
[mem-pool.c:617:mem_pool_destroy] 0-testvol-readdir-ahead: size=60 max=0
total=0
[2016-11-02 14:26:41.923844] I [MSGID: 101053]
[mem-pool.c:617:mem_pool_destroy] 0-testvol-io-cache: size=68 max=0 total=0
[2016-11-02 14:26:41.923856] I [MSGID: 101053]
[mem-pool.c:617:mem_pool_destroy] 0-testvol-io-cache: size=252 max=1 total=3
[2016-11-02 14:26:41.923877] I [io-stats.c:3747:fini] 0-testvol: io-stats
translator unloaded
[2016-11-02 14:26:41.924191] I [MSGID: 101191]
[event-epoll.c:659:event_dispatch_epoll_worker] 0-epoll: Exited thread with
index 2
[2016-11-02 14:26:41.924232] I [MSGID: 101191]
[event-epoll.c:659:event_dispatch_epoll_worker] 0-epoll: Exited thread with
index 1
2016-11-02T14:26:42.825041Z qemu-kvm: -drive
file=gluster://s3/testvol/c7.img,if=none,id=drive-virtio-disk0,format=qcow2,cache=none:
Could not read L1 table: Bad file descriptor

The brick is available , runs on the same host  and mounted in another
directory using fuse (to confirm that it is indeed fine).
If I downgrade the gluster server to 3.8.4 everything works fine. Anyone
has seen this or has any idea how to debug?

Regards,
Radu
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Re: [CentOS] latest documentation of OpenStack for CentOS7

[Gianluca Cecchi]

On Wed, Nov 2, 2016 at 8:03 AM, FrancisM  wrote:

> Hello All,
>
> Is there any good and complete material on how to install OpenStack in
> CentOS out there that is updated that you can share to begin configuring. I
> have followed some documentation in docs.openstack.org and its seems like
> every time i follow one of the module I hit a lot of errors and could not
> complete the installation.
>
>
Hello,
for updated documentation for the Openstack Platform product as provided by
Red Hat starts here:
https://access.redhat.com/documentation/en/red-hat-openstack-platform/
and I think it could be a good starting point anyway.

Please note that I think it requires a particular subscription and that you
can try it for free going here:
https://www.redhat.com/en/technologies/linux-platforms/openstack-platform

If you want to use CentOS (or also base Red Hat OS but without RH Openstack
channels) you can go with RDO project:
https://www.rdoproject.org/

It contains many docs too and in general you can choose differente repo,
depending on which version of Openstack you want to deploy (current one is
Newton now)

For more detailed questions/clarifications, ecc I think you can go to:
https://www.rdoproject.org/community/
and see the appropriate communication channels

HIH,
Gianluca
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Re: [CentOS] how to view a picture under shell?

[Glenn WANG]

thanks a lot, I also found the project at
https://sourceforge.net/projects/aa-project/files/?source=navbar, Thanks.

2016-11-02 2:19 GMT+08:00 Julius Tchanque :

> Hi Glenn,
> I found this project similar to what you want: https://github.com/
> MilenMMinev/AsciiViewer
>
> Regards,
> Julius
> On 1 November 2016 at 03:43, Glenn WANG  wrote:
>
> > hi, all, is there any command(such asciiview) to view the picture under
> > bash shell? I found the asciiview could meet my requirement, but how to
> > install it on centos? thanks.
> > ___
> > CentOS mailing list
> > CentOS@centos.org
> > https://lists.centos.org/mailman/listinfo/centos
> >
> ___
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> https://lists.centos.org/mailman/listinfo/centos
>
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[CentOS] latest documentation of OpenStack for CentOS7

[FrancisM]

Hello All,

Is there any good and complete material on how to install OpenStack in
CentOS out there that is updated that you can share to begin configuring. I
have followed some documentation in docs.openstack.org and its seems like
every time i follow one of the module I hit a lot of errors and could not
complete the installation.


-- 


Regards
./Francis

~The future has many paths - choose wisely.
~If you only do what you can do, you will never be more than you are.
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Re: [CentOS] Download Centos 7.2 64 bit

[JEYARAJ]

Kk thank you.

-Original Message-
From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf
Of Frank Cox
Sent: Wednesday, November 2, 2016 11:23 AM
To: centos@centos.org
Subject: Re: [CentOS] Download Centos 7.2 64 bit

On Wed, 2 Nov 2016 11:15:59 +0530
JEYARAJ wrote:

 How to download the Centos 7.2 64 bit..
> 
> If you see anyone please send me the link. Urgent.

https://www.centos.org/download/

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