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

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How can I make CentOS 6 treating WiFi flexibly like Ubuntu 12.04?

In my office, I have AT&T Uverse. The router is a 2wire 3600HGV. The WiFI is provided by a Cisco Linksys E1000 that is plugged in the 2wire device. With my notebook running Ubuntu 12.04 LTS ...
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16 views

CUPS - no document types are supported?

I'm hoping to eventually share out a printer for my household using CUPS. At this point I haven't made it past the initial config on the CentOS 6.2 x64 machine. Any document type I try to print using ...
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2answers
54 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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59 views

X11 connection rejected because of wrong authentication — on CentOS, for all users (including root)

I'm configuring a small computing cluster with CentOS. The last step is setting up X11 forwarding, and here I find problems that I cannot solve. On all compute nodes except one, I can set up ...
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40 views

CentOS: FTP (vsftpd) Error 530

I struggled my way into setting up FTP on this VPS and I can not get the accounts to work. I did adduser passwd but I get this error in filezilla Response: 220 (vsFTPd 2.0.5) Command: USER Main ...
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1answer
31 views

CentOS, Apache Vhosts enabled,but DOCUMENT_ROOT cant towards /home/auser/website/www1 [closed]

environment CentOS 6.5 x86_64 Apache2.4.9 (locate=/usr/local/apache2) PHP 5.5.13 (locate=/usr/local/php5) Apache vhosts enabled. site1 domain=localhost ...
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4answers
221 views

Alternative for “locate” on debian

I often use "locate" command on CentOs to find files. What's the alternative for this command on Debian ?
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2answers
38 views

NFS: share with all clients except one

I want to share a folder with all the network's clients except only one. This is my current /etc/exports file: /opt/resources *(rw,async) What should I add to prevent the client 192.168.1.24 ...
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1answer
26 views

Crontab does not run?

crontab -e 0 */4 * * * root /usr/bin/rsnapshot hourly 30 3 * * * root /usr/bin/rsnapshot daily 0 3 * * 1 root /usr/bin/rsnapshot weekly 30 2 1 * * root /usr/bin/rsnapshot monthly tail ...
2
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1answer
155 views

Can't run yum update

I've been banging my head on the keyboard with this! I'm working on CentOS 6.5 x86_64. Firstly I tried to update php and apache using easy apache. The update failed very quickly so I went on the ...
2
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0answers
32 views

Matterhorn dead but PID file exists

Installed opencast-matterhorn14 in a Centos 6.5 Machine and after Installation steps while I try to run the Matterhorn using service matterhorn start I keep on getting the same error: ...
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1answer
44 views

SELinux preventing ssh via public key

I have user $USER which is a system user account with an authorized users file. When I have SELinux enabled I am unable to ssh into the server using the public key. If I setenabled 0, $USER can now ...
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3answers
57 views

How to manage installed from source programs?

I have servers (with Debian or Centos) and I would like to install programs from sources, because I can always have up to date software. If I want to install some program from source I usually do next ...
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0answers
36 views

Show icons for open windows on multiple desktop panels

By default, the bottom desktop panel in centos(6) gnome displays icons for all open windows in the workspace. However, with two monitors, these icons are frequently sitting in my blind spots, causing ...
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0answers
42 views

vagrant private network unstable

I have these 2 boxes, but I have a problem, when I start disributed and ping 172.28.128.2 often the network isn't working, but if I then go into oracle and ping 172.28.128.3 it'll find that and both ...
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0answers
23 views

Yum update crashing my OpenVPN tunnels

I have 100's of CentOS 5.10 clients that I access through a OpenVPN connection. I have internal repo that they use for updates. However some of my clients have some serious issues pulling packages ...
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1answer
46 views

Can I install libXcomposite.so without the root permission?

I got this error when I execute dropbox on CentOS. ImportError: libXcomposite.so.1: cannot open shared object file: No such file or directory I don't have a root account. Output of uname -a: ...
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0answers
22 views

Setting up traffic for GRE Tunnel

I want to set up clients that are behind NAT with a public IP but allow them to have one or more public IP's on their device. The idea is to have a linux box with either 1 or two network cards. Lets ...
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1answer
821 views

CentOS GPG keys error

When running this on CentOS 6: yum update I accept the transaction summary that it presents and am then immediately presented with this: Downloading Packages: warning: rpmts_HdrFromFdno: Header V3 ...
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1answer
74 views

CentOS: what impact does a kernel update have?

When running this on CentOS 6: yum update I get this: --> Finished Dependency Resolution Error: Package: 2:irqbalance-1.0.4-6.el6.x86_64 (base) Requires: kernel >= 2.6.32-279 ...
0
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1answer
89 views

Nagios misinterpreting Http response!

I've installed Nagios 4.0.1 on my CentOS 6.5 server. Since I'd set up Node.js to use port 80, I configured the Apache (httpd) service to listen to port 3000 instead. I can open Nagios console and ...
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1answer
37 views

Switch Maven version after installing from jpackage?

I've installed maven3 on CentOS from the JPackage repository. Problem is my installs also seem to have pulled in maven2 which is the default. Is there any way to switch /usr/bin/mvn to be maven3? ...
2
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1answer
42 views

CentOS replace config error

I'm currently working on updating our CentOS server, however whenever I'm trying to use yum I get this error. Config Error: Plugin "replace" requires API 2.6. Supported API is 2.5. I'm new to ...
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22 views

Setting up Kolab Mail Server on Cent OS. The port number '389' is not available for use error?

I use: setup-kolab and all goes well , except an error is returned: The port number '389' is not avaialble for use. This may be due to an invalid port number, or port already being in use by another ...
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0answers
21 views

Centos not respecting ClientAliveCountMax

I'm running Centos 6.3 and trying to connect to it via OS X through capistrano deploying a Rails project. Capistrano is notorious for not respecting ServerAliveInternal from the client so I must set ...
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79 views

set the default keyboard type to ascii mode

I am running CentOS 6.5 and I am having problems setting the default keyboard mode to ascii for the virtual terminals. Currently, only the system console defaults to ascii mode, but if I log in to an ...
3
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1answer
71 views

Removal of HDD causes kernel panic

I recently added a 2nd HDD to a system and then proceeded to do a clean install on to this 2nd HDD of CentOS 6.5. The original system was CentOS 5.9. My plan was to leave the original HDD in place so ...
3
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0answers
35 views

Properly configuring symmetric active NTP?

I'm trying to configure two NTP servers to be peers to each other but I have no idea how to tell if it is working or not or whether my NTP configuration is even correct. I've put a simplified view of ...
1
vote
1answer
37 views

CentOS - Creating a partition for OpenVZ

I've recently installed a fresh copy of CentOS 6.4 and I was going to install OpenVZ on it however on the install instructions it said that it is advised to make a separate EXT4 partition for the VMs. ...
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1answer
46 views

repairing a damaged grub with centos

I have a damaged grub in my centos system. to repairing this problem, I use rescue mode and then I execute this follwing comand : chroot /mnt/sysimage grub-install /dev/mapper/ddf1OSp3 and then ...
2
votes
1answer
34 views

CentOS VM 3972 Segmentation Fault

I'm trying to install MATLAB 2012 on CentOS 5.8 running on a VM cluster. I was able to mount the .iso file, but when I run ./install, it was unable to write to /tmp giving the error, "no space on ...
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1answer
183 views

mcrypt, EPEL and CentOS 6.4

I am having issues installing php-mcrypt. I am not an administrator of any level. I have performed the following. Installed EPEL Installed REMI Configured EPEL Updated YUM Cleaned YUM Installed ...
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1answer
28 views

Building rtmpdump on RHEL x86 without yum and no root rights

I have an ssh connection to a RHEL x86 machine, and I can't use yum and I don't have root rights. Is there a way to still install rtmpdump? By looking at this tutorial, it seems that installing ...
1
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1answer
72 views

A messagebox keeping popping up in my centos VNC server asking to change proxy settings?

I have included a screenshot of what it looks like. It keeps appearing and in the morning you to close it 50 times. Could you please help me identify where the problem lies? NOTE: It's CentOs 6 ...
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1answer
144 views

Transfer files from CentOS VM VirtualBox to Windows host machine

How can I transfer the scripts and text files I've created in my CentOS environment and put it in my host desktop (Windows 7)? I've tried using ftp but it needs to configure the routers to use vsftpd, ...
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0answers
108 views

Improving TCP performance over a gigabit network

I have two machines both network cards speed is 10Gbps. The inbound bandwidth between the two machines is 10Gbps, the outbound bandwidth internet bandwidth is 500Mpbs. Both machines are using public ...
2
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3answers
46 views

Add new packages to repository server

I'm using CentOS I've built a repository and put packages on it ,testing from another server and all things are fine. When I added new packages on repository and execute: $ createrepo -v ...
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0answers
20 views

Spamassassin blacklist_subject not translating UTF8 characters

I am using spamassassin version 3.3.1 in conjunction with amavisd on Centos 6.5 64bit. It appears that when I use the whitelist subject plugin (actually using it to blacklist subjects, ie ...
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2answers
71 views

Disk full on a server with a large /home partition

I've just got this CentOS Server but I think I've set it up wrong as I can only upload a few GB then I start getting errors, It should have ~1TB. this is the results of lsblk [root@ns4005990 ~]# ...
2
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0answers
156 views

Samba instructions work on CentOS 6.5, but not CentOS 6.3 - permissions in Windows are different

I followed these instructions to install Samba on both a CentOS 6.3 OS and a CentOS 6.5 OS. http://rbgeek.wordpress.com/2012/05/25/how-to-install-samba-server-on-centos-6/ It only seemed to work ...
0
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1answer
60 views

Rooting Linux via mysql

I have a CentOS 5.6 x86 installed. I have full access to mysql but it seems I have forgotten Linux root password. How I can access the root via MySQL? Is it even possible? Update: MySQL Version is ...
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0answers
412 views

mysqld dead but pid file exists

Webserver was running fine for weeks then suddenly: I can access, but I am unable to log into Webmin I can access Magento, a php-based storefront application, but I am no longer able to log in and ...
2
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0answers
19 views

Intel Xeon stuck at 800mhz CPU Freq on RHEL 6.5 [duplicate]

Currently running into a headache trying to figure out why my CPU speed is stuck as such a low frequency. After doing some research, I found that cpuspeedutil does actually control the state of the ...
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2answers
153 views

how can I add records to the zone file without restarting the named service?

I'm working on centos6.5 and bind9 and I have managed to add records to a DNS zone by doing this steps: creating the key: dnssec-keygen -a HMAC-MD5 -b 128 -n HOST example.com. editing conf. ...
2
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1answer
80 views

How do I maintain a separate (newer) glibc / gcc / … stack as non-root on Linux

Our computation cluster runs a very old version of CentOS, with an old Kernel (2.6.18) and, of course, old libs and binaries. Because updating the whole thing requires a lot of work on all the nodes, ...
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1answer
203 views

Cannot install Snort 2.9.6.1 due to “Not a compatible architecture”

I have Centos 6.5 installed on a Dell Inspirion Intel chip. When I entered uname -a I got Linux family.room 2.6.32-431.el6.i686 #1 SMP Fri Nov 22 00:26:36 UTC 2013 i686 i686 i386 GNU/Linux I ...
2
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1answer
387 views

What audit log files are created in linux to track a users activities?

One of the machines on our networks was consuming a large amount of Internet bandwidth. However no user was using the system. When I connected to the server using SSH and ran who it showed that a ...
0
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1answer
126 views

SSH Login doesn't work using a key Without Password?

Agent admitted failure to sign using the key I'm working on centos6.5(32bit) and I have tried to ssh log in without Password Using ssh-keygen & ssh-copy-id? the steps that I have done: first I ...
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3answers
177 views

What commands are available in the %pre section of a Kickstart file on CentOS?

Environment: CentOS 5.5 and 6.4 I have a request to analyze the hardware before installation to make sure our customers don't install our software on sub-standard server hardware. For example, ...
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1answer
50 views

Access Windows File System From Linux OS

My sister's computer has stopped working. I am not entirely sure what the problem is, but I think it is a Windows/software issue. She really just wants to retrieve the pictures off it. I am ...