CentOS is an Enterprise-class Linux Distribution derived from Redhat Enterprise Linux sources freely provided to the public.

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How do I install Exim and Horde on Centos 7 with MariaDB 10?

I can't find a guide for this (they are old and don't work) and I can't seem to manage to install it. I can't install Postfix because of its dependencies, so I'm going with Exim, which I installed ...
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1answer
1k views

Ffmpeg problems on centOS 5.8 64 bit

I did install ffmpeg with winff, unsuccessfully when I try converting avi to x264, it says I don't have it. When I try to convert mp4 to Xvid I get unknown encoder 'libxvid'. It's like nothing really ...
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18 views

Modprobe vboxdrv failed centos

I am trying get Virtual box running in Cent os7 So far the vbox kernel compiles but will not start I'm just told "modprobe vboxdrv failed, please use dmesg to find out why" I have looked at "dmesg" ...
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1answer
825 views

dm-0: WRITE SAME failed. Manually zeroing. Centos 7.1 on VmWare ESXI 5.5

I've got a error when system start on 2 VM's. dm-0: WRITE SAME failed. Manually zeroing. OS: CentOS 7.1 VmWare ESXI 5.5 1-st VM has LSI Logic Parallel type for SCSI controller on HDD Datastorage. ...
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1answer
40 views

tar ignoring “newer” option

How do I get tar to only include files newer than a certain date? I have tried the following, both of which include older and newer files (today is 2015-07-20): tar -cj -N 2015-07-07 directory | tar ...
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1answer
64 views

Yum error while installing MongoDB on CentOS?

I am using Centos 6.6 (x86_64) Trying to install most stable mongodb version available. but I am stuck with this error (which might seem repeated but none of the previous answers worked for me) ...
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1answer
40 views

Writing an install script for CentOS

Every time I deploy a VPS server, I install VNC server. But every time I have to do this: yum groupinstall Desktop yum install tigervnc-server yum install vnc yum install firefox (etc.) Can I ...
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12 views

longman contemporary dictionary in centos

I installed longman contemporary dictionary in centos 6.6 via "sh setup.sh" it is done successfully but when I run it by ./ldoce5 I have the first page but I can't select any icon (any error) I mean ...
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1answer
40 views

How to create Swap from already created mount points

I have prepared a CentOS 6.5 with all mount points at formatting time, including swap. Now, when I am trying to run command swapon, it shows 0 0 0. And when I am trying to create it again using ...
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1answer
39 views

Cent OS 6.6 enable Plaintext authentication on dovecot and postfix

A customer of mine wants to use gmail as their default mail client but I have rolled forward to a new CENTOS server version (6.6, ok it's not "new" new) and the dovecot and postfix settings are ...
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31 views

EXT4 Journaling - Problem

Basically my root (/) ext4 partition keeps being mounted as read-only when I apply internal journaling feature. I understand that this should be default, but today I had been trying to apply external ...
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1answer
783 views

changing default centos 7 workspaces

On CentOS7, using the gnome environment, I do not seem to be able to add, remove, or change the workspaces. I prefer to have 2 workspaces, or no workspaces, and understand the usefulness of the ...
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2answers
1k views

vgdisplay shows 0 free PE/size

I'm trying to configure a CentOS HA system with 2 nodes, with DRBD for replicated storage. I'm following the "Clusters from Scratch" guide, and at the DRBD portion, I need to create a partition for ...
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0answers
11 views

Can't get DHCP on ovs port automatically

On centos7, I have disabled network manager in order to use OVS. however, I wish to get my IP address through DHCP on my port br-ex; if I edit /etc/sysconfig/network-scripts/ifcfg-br-ex to include ...
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7answers
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jemalloc and other errors making redis on centos 6.4

I am setting up a new, dedicated, centos 6.4 system with redis. I have installed redis many times, but have never hit this issue (and have never been on centos 6.4 before). cd redis-2.6.16 sudo make ...
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1answer
25 views

virsh and creating storage pools - What is sourcepath “- - - -”

I am running CentOS 7 and was following a chapter in a book dealing with virtualization and creating storage pools. I successfully ran the following command, but I'm not sure what setting - - - - as ...
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1answer
60 views

How to install bower on CentOS 7?

I am trying to install bower on CentOS 7, after installing node.js. To install node.js I followed these steps: Step1: wget http://nodejs.org/dist/v0.10.30/node-v0.10.30.tar.gz Step2: tar xzvf ...
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1answer
20 views

How to determine or set keyboard shortcut for activities view in gnome3 on centos7?

Is there a way in Gnome3 on CentOS7 to list the actual keyboard shortcuts for things like the activities view? I can find lots of web pages that tell me what they should be, but I'd like to know for ...
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1answer
23 views

CentOS 6 Cron Logging Without Postfix

On a CentOS environment I am setting up, I have no need for email of any kind. I would like to simply disable postfix entirely, however this also disables logging from cron which I do need to have. ...
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1answer
1k views

Bridge does not get IP via DHCP at boot

I'm running CentOS 7. I'm not running NetworkManager, and I've actually uninstalled it. My system is supposed to acquire an IPv4 address via DHCP on br0 at boot. Howver, when I log in, it has no ...
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2answers
1k views

yum install mod_auth_token not working on CentOS

On CentOS 6.5 how do I make yum install mod_auth_token work these days? According to my own HOWTO I wrote 12 months back, you used to be able to just type it now you have to DIY it, which is bad ...
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1answer
17 views

Keyboard binding for “activities overview” in Gnome3 on CentOS7 only brings up applications menu

I found a "Gnome Help" web site that listed the keyboard shortcut for the "activities overview" screen, but I found that wasn't working. I then found the "Settings"->"Keyboard"->"System" preferences ...
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4answers
24k views

Yum update error: Could not retrieve mirrorlist

I'm trying to do yum update. This is the error I'm getting. sudo yum update Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile Could not retrieve mirrorlist ...
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1answer
38 views

NTFS formatting disabled while using Gparted in CentOS 7

I am using GParted for formatting my usb-device(a pendrive). And, I unmounted my device using the GUI program itself. The device doesn't show mounted anymore. When I try to format my ...
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1answer
2k views

How to create a git repo using Nginx?

I've a CentOS 5 server at domain.fr. I am trying to set a subdomain so that I can use it with git : git.domain.fr My repositories are in /home/git (example /home/git/repos.git) I've installed ...
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1answer
20 views

nfsstat -s: What does sequence mean?

I am having a lot of trouble with my NFS v4 server running over infiniband (IPoIB), every time the load gets high, the nfs server locks up and I have to reboot the server to fix the problem. I get the ...
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0answers
5 views

How to run Padre after installing via cpanm?

./cpanm Padre It looks like I could successfully install Padre. But.. How can I start it? I installed it with a normal user, not root.. where is the start script? [user@notebook ~]$ find . -type f ...
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2answers
4k views

Upgrading centOS 6.6 to 7

I have recently upgraded centOS 6.6 to 7. It seemingly boots up, but it can not open the log in page, Actually the systems is frozen here. Does anybody have similar experience? If so, it would be ...
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0answers
22 views

Zimbra Bind IP address change

My client physically moved their CentOS 6.5 servers to a different data center with a new set of IPs. Before moving, they configured Zimbra 8.0.7 from Admin console with new bind address where they ...
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27 views

ffmpeg libass centOS 5.11

Hi i just got a vps server and it has CentOs 5.11 and kernel 2.6.18 and I need to install ffmpeg on it with --enable-libass. So I have tried to compile but I'm having problems with libass because of ...
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2answers
2k views

How to permanantly disable /var/log/lastlog?

When I delete files such as /var/log/lastlog, /var/log/utmp and /var/log/wtmp the files will be recreated. How do I disable the recreation of those files?
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1answer
4k views

Unknown DAV provider: svn

I did something wrong On my CentOS 5.9, I did the following: cd /usr/local/directadmin/custombuild ./build rewrite_confs But now I get an error restarting httpd: [root@1332 conf]# service httpd ...
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1answer
32 views

What are the default file permissions in CentOS?

What are the default file permissions in CentOS 5, CentOS 6 and CentOS 7? Is there any difference in the default file permissions between these OSs?
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1answer
27 views

Tracking Source IP of Dropped Packets

I have a server running CentOS 7 which is showing a considerable amount of RX dropped packets on ifconfig. I believe those may be caused by hardware problems such as faulty cables and connections. ...
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1answer
29 views

How to connect to a CentOS VM over ftp?

Host - Windows 7 Guest - CentOS I have installed vsftpd as according to this guide and the service is running. But when I try to connect to the VM from the host using FileZilla the connection times ...
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1answer
30 views

Connect to SFTP using Centos Linux VM

I have Centos running a Linux VM on a Windows machine. I'm not able to connect to the VM using WinSCP with sftp on port 22 or ftp on port 21. I have Subsystem sftp ...
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1answer
36 views

what is the canonical way to start a daemon in rhel/centos-6 init script?

I found lots of good documentation for ubuntu's start-stop-daemon and there is a man page for a binary daemon. But from what I can tell the canonical way to start a daemon in a rhel/centos script is ...
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2answers
114 views

Upgrade Centos to 6.5 not 6.6?

We are running Cassandra, specifically Datastax's Enterprise version in our production CentOS environment. As such, I wanted to upgrade our machines from an older CentOS 6.3 version to 6.5, the ...
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0answers
25 views

iptables blocking incoming FTP traffic 2/3 minutes after being reset

On CentOS 6.6- At first, iptables was blocking access to my FTP server at all while it was on. After some research I added the lines to /etc/sysconfig/iptables that are suggested in the question ...
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0answers
14 views

How to automate HP 3PAR in CentOS using Python?

I have worked out in windows to start 3PAR using python but i am not able to login into 3PAR in centos. Additionally how to view system,hosts, provisioning Tab(list Volumes, Virtual Volume sets, ...
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2answers
56 views

Centos 7 Drivers issues on HP sleekbook 15-b001ee

I am fresh to linux and centos. I have installed centos with GNOME desktop successfully but after signing to my account couldn't find Sound and Wifi working. I have google a lot but everything is ...
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1answer
1k views

Empty desktop after installing xrdp on Centos 6.5 with XFCE as window manager

I followed the directions to install xRDP from this site (http://ajmatson.net/wordpress/2014/01/install-xrdp-remote-desktop-to-centos-6-5/) When I RDP from Windows -> Linux, I successfully enter ...
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0answers
86 views

How to install RabbitVCS on CentOS 7 & nautlius 3?

I haven't found any solution working so far :( What I've tried so far was follow steps from the manual. First I installed all required packages (at least I think so, naming isn't always the same) . ...
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1answer
884 views

Any better alternative to chroot on an OpenVZ VPS?

Are there any better alternative to chroot environment? I'm thinking about running nginx on a jailed environment. BTW, I'm on OpenVZ VPS, so modifying the Kernel is a no-no. (I think that prevents ...
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23 views

Install basic gnome desktop on gnome7 minimal install

I recently installed centos7 minimal. I would like to install gnome classic now to start automatically but I'm trying to avoid the traditional install GNOME desktop because I don't want all the ...
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0answers
229 views

Centos 7 boot up with custom kernel problem

I have installed centos 7 on virtualbox machine which has kernel-3.10.0-123.20.1.el7.x86_64. I am trying to build Linux kernel from kernel sources. I downloaded the kernel source files from: ...
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1answer
33 views

How to Install “remotely” Binary source from another path location

Suppose this I have a Bynary_Package.tar.gz When i unzipped this: zxvf Bynary_Package.tar.gz -C /path/dir/ Now, I move to cd /path/dir/Bynary_Package/ when I list this with ls -Al I have the ...
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2answers
610 views

Cant install gnutls.i686 on a x64 CentOS install

I need to install gnutls.i686 on CentOS 7 but I get this error in yum: Transaction check error: file /usr/share/man/man5/pkcs11.conf.5.gz from install of p11-kit-0.18.7-4.el7.i686 conflicts with ...
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1answer
11 views

hicolor icon error in pgadmin3, but hicolor-icon-theme installed

I have a CentOS 7.0 box that I am SSHing into from Windows with putty and the Xming Windows server. When I run pgadmin3 (installed via yum) I get the following: (pgadmin3:23011): Gtk-WARNING **: ...
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1answer
2k views

How to install Owncloud on CentOS 6.5

I wanted to install Owncloud on my VPS running CentOS 6.5. I followed the instructions on the official owncloud website but when I run the command yum install owncloud it says Error: Package: ...