CentOS is an abbreviation for Community Enterprise Operating System that aims to be compatible with its upstream source, Red Hat Enterprise Linux. CentOS 6 is the 6th major version of CentOS, which was released on July 10th, 2011.

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Difference between `/var/lib/pgsql/9.1/data/pg_hba.conf` and `/var/lib/pgsql/pg_hba.conf`

From http://www.postgresql.org/docs/current/static/auth-pg-hba-conf.html, it says: A default pg_hba.conf file is installed when the data directory is initialized by initdb. I would assume when ...
2
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1answer
288 views

how to run as a nobody account?

I'm currently using CentOS 6 on a VPS (openVZ). I just created a user stunnel_user and group stunnel_grp to run stunnel on some nobody:nogroup. I changed the shell of the stunnel_user to /sbin/...
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1k views

Why is SSH permission denied unless sshd is in debug mode

I have problems ssh to my own box (both remotely or locally) with the message Permission denied, please try again. Then I stop the sshd service with /etc/init.d/sshd stop and start sshd in ...
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0answers
21 views

email does not deliver body when I use < 'file'

Moving from centos 5 to 6.4. I have many scripts that use mail with < 'file' at the end to email various reports to users rather than use -a BUT when I use that syntax with the mail installed on ...
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1answer
66 views

Can I create a user without specifying a login name

Can I create a user without specifying a login name, and let GID used for it's login name? I read the man useradd(8), but this command seems to require a login name be set. Any GUI way or script ...
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1answer
2k views

CentOS 6.3: yum install ImageMagick, identify and convert don't work

I ran "yum install ImageMagick" on our CentOS 6.3 server, which worked fine, but identify -version and convert don't work (-bash: /usr/local/bin/identify: No such file or directory). I originally ...
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531 views

Is my CentOS library multiarch? And what does that mean?

On CentOS release 6.4, I am trying to run a binary. However, it gives the following complaint: (...) requires "/lib/libuuid.so.1" to function. From a quick search, I can see that the only similar ...
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2answers
5k views

How to mount nfs using automounter(autofs)

I have an nfs at 192.168.1.10:/home/vm1/Desktop/nfs and will like to mount locally to /home/vm1/Desktop/nfs-mount using automounter...need help doing do What i did $cat /etc/auto.master /home /...
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398 views

Installation of CentOS on external Hard Disk

I installed CentOS on an external hard disk and it works correctly with one of my computers. However, when I boot CentOS from the external disk on my other computer, it throws an error: kernel panic - ...
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2answers
6k views

Does CentOS 6.4 Support UEFI and SECURE BOOT Fully?

Does Minimal Edition of CentOS 6.4 support UEFI & SECURE BOOT fully? I want to install it besides Windows 8. Now does it install normally or does it not support UEFI & SECURE BOOT fully yet? ...
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1answer
518 views

Files with write permission for all in /proc directory on CentOS 6.4

While searching for files writable by others, I'm coming across many files available in subdirectories of /proc. I'm not much aware of the usage of these files, but curious to know whether if someone ...
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1answer
645 views

legacy grub: updated menu.lst is not used

This is a CentOS 6.4 with all updates inside Virtualbox OSE (quite old version). All information below refers to the VM, I don't think there is any issue on the host. /boot is a separate ext2 fs on /...
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1answer
93 views

Linux find always returns 1 record

Why command find -cmin +20 in Linux CentOS always returns 1 record which is .? How can I work around this?
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1answer
494 views

Gitorious can not connect to Active Directory (authentication.yml)

I have set up Gitorious. With the local database, everything worked fine. All my log and configurationfiles are included. The problem is when I want to visit gitorious.localdomain when I have ...
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3answers
4k views

Cinnamon for CentOS?

I was trying to install Cinnamon from Source code in a CentOS v.6.4. Unfortunately, I was stumbling upon dependencies that were becoming weird each and every time. Some of them, I tried to build, ...
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2answers
3k views

CentOS freezes during startup in VirtualBox

This is an installation of CentOS 6.3 in VirtualBox 4.2. I was able to install with no problems and have booted it up about 3-4 times previously and used it without any issues. Now, when I start it, ...
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2answers
2k views

cpufreq performance module?

I see no cpufreq performance module: $ ll /lib/modules/2.6.32-358.2.1.el6.x86_64/kernel/drivers/cpufreq/ total 88<br/> -rwxr--r--. 1 root root 20576 Mar 12 18:26 cpufreq_conservative.ko -rwxr--...
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1answer
439 views

Which Package has net_tstamp.h?

I attempted to compile the source code here: http://os1a.cs.columbia.edu/lxr/source/Documentation/networking/timestamping/timestamping.c?a=x86;v=2.6.32 However, I got a compiler error: error: linux/...
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2answers
888 views

Trouble with SSH

I am having trouble using ssh. I seem to be able to ssh out of the machine, but I can not locally ssh to the machine, nor can i ssh from a remote machine. I have checked the /etc/ssh/ssh_config and /...
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1answer
24 views

Configured mailman but can't browse to index page from a different machine

Hi, I configured mail man on a server and it says got to page http://server1/mailman/ It works locally on the server; but can access that page from a different machine; it fails; -> I am using ...
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1answer
116 views

Is LAMP needed in Centos 6.3

I am planning to install OpenVZ on Centos 6.3 and create containers using OS templates.I understand OpenVZ creates Virtual Private Servers.So is there a need to install LAMP in the host distro before ...
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1answer
432 views

Setup SSHd on port 522 on CentOS 6.3 (x64)

I currently run a server with SSH on a non-standard port for security reasons. That was 522 on CentOS 5, but CentOS 6 doesn't (easily) allow SSH to run on any port below 1024, other than 22 obviously....
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542 views

how to fix when deleted folder /var/lib/* centos 6

unfortunately, I deleted folder /var/lib/* in centos 6 how to recovery folder /var/lib/* in centos 6 Plz help me
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1answer
462 views

VNC Server on Centos 6

I'm having a problems with my VNC server on my linux VPS: I want to connect but when I connect I get a black screen instead of the gnome desktop (I did install this). This is the log file I get: Xvnc ...
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0answers
497 views

What could be the reason behind this kernel panic

My laptop boots from the Fedora,Ubuntu live cd normally.But with Centos live cd there seems to be a problem as it displays the below lines. slab error in kmem_cache_destroy():cache 'Acpi-Operate':...
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1answer
5k views

BIND named… unknown host

I have a very basic home network: A CentOS 6.3 server (storage, DNS, httpd, etc), a desktop, several laptops. I was running an old version of CentOS on the server for a long time (5.4 or something) ...
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1answer
84 views

rpm-spec and Home's user folder

I'm just trying to figure out how to know in an rpm package that calls sudo, and put some files in the non-root home folder for the users who call sudo or are root. I tried with something like this: ...
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1answer
2k views

Installing PHP 5.4 on CentOS 6

I want to update my CentOS 6 PHP version from 5.3 to 5.4 so I tried this guide: http://www.webtatic.com/packages/php54/ But after running yum install php54w I get this: Setting up Install Process No ...
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2answers
2k views

YUM Update error

I got a virtual machine with CentOS 6 on it. I've tried to run yum update, but I got this error: http://mirror.centos.org/centos/6/addons/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 22 - "The ...
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1answer
2k views

CentOS 6 sshd: Logging in works, but still claims “access denied”

I have just installed a plain CentOS 6.3 system. I enabled sshd, and try to connect with Putty. This works, but here is what I get: login as: user Access denied user@192.168.1.7's password: Last ...
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1answer
1k views

Terminal menu bar hidden

I unchecked the menu bar option in the View of the terminal on CentOS. Now this terminal menu bar is hidden. Is there a way to get it back?
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281 views

Unable to boot Centos 6.3 from live CD

This seems a strange question to ask. The the same cd boots perfectly on one PC but gives the message- slab error in kmem_cache_destroy():cache 'Acpi-Operate':can't free all objects slab error in ...
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2answers
2k views

How to install centos inside virtual box using iso image

I am using oracle virtual box manager I created the virtual hard disk In Setting -> System -> Boot order selected CD/DVD-ROM has the first priority And in storage I did this changes while ...
2
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1answer
4k views

grub-install gives an error message I don't understand

I'm new to Linux, am using CentOS 6.3, and am attempting to install CentOS 5.8 ISO to a pen drive following instructions from here. My pen drive is /dev/sda and partition 1 is vfat. It's mounted on /...
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1answer
750 views

MPD Installation on Centos 6.3

I am in the process of migrating from Ubuntu Server over to CentOS. While I can easily configure MPD as a system wide service on Ubuntu, I am having difficulty with CentOS. Can anyone recommend a ...
0
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1answer
407 views

proxy servers with ips from various other countries

I am trying to setup a proxy server for a few members of my team. I want to give it to them through my VPS server, what I want to know is I want to give at least 30 IPs from different country then ...
3
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1answer
496 views

Why don't my certificates match?

I'm configuring a VPN with OpenVPN without interfaz, the problem is when I try to connect, it says: TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity) ...
2
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1answer
21k views

How to fix certificates verification creating a VPN (OpenVPN)?

Ok, I'll explain what I did... and at the end is the queston. THank you! To set up my VPN I installed OpenVPN in server and client machines. On server I configured the cert Authority in the file /etc/...
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1answer
331 views

centos 6.2 VPS system encryption performance

My webapp database handles some user profile data (name, birthday, work and education history, email, facebook id, and also my facebook app secret that would provide any holder access to any facebook ...
2
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2answers
7k views

Unable to login from GUI in CentOS 6.3

I'm facing a weird problem now. Unable to login to the desktop and use the GUI. This problem is somewhat similar to Not able to login through the GUI but there weren't any autologon system enabled. I ...
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2answers
2k views

Execute multiple commands in one line inside unix shellscript

The question is somewhat related to the question asked here, http://stackoverflow.com/questions/5130847/shell-multiple-commands-in-one-line, but the difference is, I need to execute the whole commands ...
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0answers
896 views

Passwordless ssh failed when login using username

I was trying to setup Hadoop and was stumbled on passwordless ssh to localhost. I am getting a password prompt when trying to connect using ssh username@hostname format. But there is no problem ...
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1answer
3k views

mysql workbench on centos 6

I've installed mysql workbench: sudo yum install mysql-workbench-gpl-5.2.44-1el6.x86_64 Then I've double-clicked its icon on the desktop, but after splash screen nothing is displayed. If from ...
0
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1answer
645 views

Screen stays on when laptop lid shut, running centos 6.3

I'm running Centos 6.3 on a Dell laptop, I'm not running a graphical desktop - just text mode. When I shut the laptop lid the display remains active with the backlight on, whereas I'm expecting it ...
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1answer
2k views

mdmonitor service issue in linux

chkconfig showing the output as mdmonitor service is running [root@localhost ~]# chkconfig --list | grep -i mdmonitor mdmonitor 0:off 1:off 2:on 3:on 4:on 5:on 6:off But ...
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1answer
335 views

Install mcrypt on CentOS 6.2

I want to install mcrypt on CentOS 6.2, firstly I tried yum but it cannot fined the package, then downloaded source file of libmcrypt-2.5.8 compiled and installed it by following commands: ./...
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1answer
3k views

CENTOS 6 - How to install php-mysql when php-common @remi is present?

I am having troubles adding mysql support for my php installation, this installation was made using a ready to use-package that came with our VPS. This is my php.info: http://snake.quetzalcoatech....
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1answer
2k views

can we check remote login information using finger command

In man page of finger it's showing Finger may be used to look up users on a remote machine. The format is to specify a user as “user@host”, or “@host” so I tried [max@localhost ~]$ finger ...
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1answer
8k views

can't run lspci in centos 6?

trying to run lspci but it doesn't seem to be working? [Ramy@localhost ~]$ sudo yum install pciutils Loaded plugins: fastestmirror, refresh-packagekit Loading mirror speeds from cached hostfile * ...
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0answers
441 views

How to multiseat with HW 3d accel on CentOS 6.3 Final?

I would like to setup a multiseat configuration on CentOS 6.3 (two video cards, two keyboards, two mice, two monitors) and have hardware accelerated 3D on both monitors. 3D HW acceleration rules out ...