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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libssl.so.6: cannot open shared object file

I tried installing my application in a CentOS 6 server. But while I am starting Apache(Server version: Apache/2.2.26 (Unix)), I am getting error like [error] install_driver(mysql) failed: Can't ...
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1answer
736 views

Upgrading glibc in centos 6.6

My server is using glibc-2.12.x. when I install certain packages it gives an error.Dependency not found glibc-2.14 or above is required.When I try using yum install glibc* it says server is already ...
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8 views

Execute dialplan or a script once Asterisk started

Is there a way that I can execute something inside Asterisk or maybe a script once Asterisk has been started? I am planning to update a record in db table once asterisk started (like resetting ...
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20 views

ffmpeg headers not found while configuring ffmpeg-php

I am configuring ffmpeg-php in a cpanel installed centos 6.8 server. I was able to successfully install all necessary packages that were required to install ffmpeg. Also I had successfully converted ...
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How can I repair a totally corrupt rpm db on centos 6.4 with no backup?

I am looking for help in repairing my Centos 6.4 rpm db. I had a disk failure and the backup rpm i have is not working also. I have googled the request and have come up with many different solutions ...
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52 views

Install CentOS 6.7 guest without internet connection via console?

I have problems installing a kvm guest CentOS over ssh on a server without internet. This is what I do: fallocate -l 200G /var/lib/libvirt/images/dbpvvtlzg.img virt-install \ --accelerate \ --os-...
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Kickstart Query - How to install Centos/Redhat on 5th Disk?

Kickstart Query - How to install Centos/Redhat on 5th Disk? This is a kickstart question. We have DL360p server which has 6 Drives. First 4 Drives are Sata Drives and 5th and 6th are SSD Drives. ...
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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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lsdvd, libdvdread, libdvdcss for encrypted DVD ISO, Can't Open Error

I'm executing lsdvd -x filename.iso and getting the following error libdvdread:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.IFO failed libdvdread:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.BUP ...
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548 views

Blank screen, CentOS 6.5

I'm on a Dell PowerEdge 2850, and I recently installed CentOS 6.5, and it worked well for a while, then recently whenever I booted into the OS like after the BIOS screen, everything went blank and it ...
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1answer
9 views

How to map (such as) ata4.01 to device?

I'm seeing messages link this on a CentOS 6.8 server: Jun 12 22:01:12 myserver kernel: ata4: lost interrupt (Status 0x51) Jun 12 22:01:12 myserver kernel: ata4.01: exception Emask 0x0 SAct 0x0 SErr ...
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13 views

ffmpeg won't upgrade or uninstall

I'm trying to upgrade ffmpeg on centos6 but everything I try doesn't work . I've tried reinstalling to overwrite it but no luck. this is the version and when it was installed. It installed 2 weeks ago ...
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1answer
16 views

running sudo command for a user in centos

On a Centos-6.1, the user is in the root group, but he is not able to run sudo commands mahmood@cluster:~$ groups root kvm vboxusers google-otp mahmood mahmood@cluster:~$ sudo ls [sudo] password for ...
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1answer
23k 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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22 views

Disable Sendmail from rescue mode CentOS 6 Virtual Server

Hello we rent a virtual server of 1and1 CentOS 6 with Parallels Plesk Panel 12 (64-bit) they have put it into rescue mode as it was "found to be part of a network of compromised machines leading a ...
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1answer
17 views

g++ 4.9.2 in Cent OS 6.7 will compile but not link

I am using Centos 6.7 and have installed the devtools-3 distribution and "enabled" it to make gcc 4.9.2 the default. A simple C++ program that uses regex will compile , but does not link. // ...
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2answers
308 views

CentOS connect to VirtualBox network

I have created a virtual network by using VirtualBox and I would like to know how can I make CentOS connect to it and have its own IP (e.g. 192.168.1.102 ) because I have a Windows 7 VirtualBox inside ...
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16 views

Errors in script which runs on boot

I have made an installer script of my architecture which runs on boot, and I added it to chkconfig: #!/bin/bash # # chkconfig: 2345 99 30 # description: Product Installer Service # if [ -f /home/...
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442 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 ...
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3answers
209 views

Where can I get Centos 6.5?

I am deploying a product for my department which calls for CentOS 6.5. When I browse the CentOS downloads, I am only seeing 6.6 available with no means of finding 6.5. Our vendors have only stated ...
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Why Centos still not using Latest kernel

As i have seen many changes and improvement in kernel 3.xx The improvement i like is dmcache which introduced in kernel 3.9 I have 3 server with centos installed on all machine Centos is still ...
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1answer
26 views

One user, multiple desktops tigerVNC

I was wondering if there was a way to "share" a user through tigervnc such that if both are logged in, both see their own desktops. I need something similar to screen in ssh. I've tried connecting ...
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9 views

How to migrate symbolic links from two folders?

I made a backup of "zimbra ce" rsync but I just realized that you have not copied symbolic links. I have a clean installation zimbra in /opt/zimbra/ and backup in /opt/zimbra_old/, how I can copy all ...
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1answer
66 views

cpuinfo shows 40 vcores on 10 core processros

Recently I procured a machine with Intel(R) Xeon(R) CPU E5-2650 v3 @ 2.30GHz with 128GB RAM running CentOS 6.7. The specs in Intel web site show that this processor has 10 cores (20 hyper threaded ...
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19 views

Directory access not permitted

I recently installed the Open Virtual Desktop (Community Edition) on CentOS 6.6. I tried to open the folder created for a particular session. When the session was logged in, the folder could be ...
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1answer
17 views

How can I get the entry of some commands in .bash_history through a script in centos?

writing a python script to generate commands is working and the commands are getting executed in bash, but they are not getting entered in .bash_history.What should I do so that those commands are ...
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53 views

VMware - CentOS 6.5 Static IP Addresses

I installed CentOS 6.5 On VMware Workstation With a static IP Addresses but I'm not able to use Internet connection!! I applied all the steps performed in this post (From the official CentOS Website):...
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2answers
109 views

Prevent uninstalling phpmyadmin when uninstalling php

I have a centos 6 server and i want to upgrade my php version from 5.4 to 5.5 but as far as i know i need to uninstall version 5.4 first (most guides say so at least), when i type yum remove php-...
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1answer
48 views

How to find files modified in last 24 hr but do not find from hidden directories and sum them

I have following command to find files modified in last 24 hr and sum all of them. #!/bin/bash find /mnt/naspath -mtime 0 -print0 | du --files0-from=- -hc | tail -n1 >> /tmp/size.log exit 0 ...
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How to set domain name in CentOS 6.6.

I am using CentOS 6.6 This is my /etc/sysconfig/network file NETWORKING=yes HOSTNAME=rahul This is my /etc/hosts file entry 172.16.11.222 rahul.example.com rahul If I type hostname I ...
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3answers
23k views

CentOS 6.5 - bash: service: command not found

So I can't type service on my CentOS 6.5 server. I'm logged in as root. When typing service I get this error: bash: service: command not found I have also tried to type sudo service, but with no ...
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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
8k views

Warning: remote port forwarding failed for listen port on Centos 6

I have a problem with port forwarding in centos 6, when i do: ssh -v -R root@hostname:19999:localhost:22 root@hotname I get this warning: Warning: remote port forwarding failed for listen port ...
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2answers
170 views

Is my Port 3838 Open based on this netstat -tulpn?

I am trying to host a Shiny R Web Server on a CentOS Virtual Machine. I am troubleshooting some networking issues, but I want to confirm that the port is open. I have a Static IP address for this ...
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1answer
7k views

Skype not working in CentOS 6.2

I tried to install Skype on CentOS 6.2. I downloaded Skype's rpm package from here and tried this command to install – but it's giving an error like this: [root@localhost Downloads]# rpm -ivh skype-4....
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ifcfg-eth0 not being recognized after network restart

I am trying to configure a Bridged connection on a Centos 6.7 Virtual Machine, on a Windows 7 host. I have a static IP and a MAC Address for the host ethernet adapter (as shown in eth0). I have an ...
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11 views

How to migrate e-mail accounts from one server to other

I have copied the content of /home/username/mail folder from one server to the other (source is Centos 5 and target is Centos 6). Then I tried to list the e-mail accounts and the list appears empty. I ...
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2answers
672 views

yum install gcc fails with invalid linux.dropbox.com/fedora directory

I am relatively new to Linux administration. I have installed Centos 6.5 (under VirtualBox on a Win7pro system). When I try to install gcc to the system using yum, I get the following results: [root@...
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Website is slower in AWS - Compare Memory from AWS to Old Server (Parallels)

I just migrated a website from an old server to an AWS Instance. The website is slower in AWS than it was in the old server. I ran a top command from both servers and I got: Parallels old server: ...
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2answers
66k views

How to Boot CentOS in CLI?

I have a CentOS 6.2 OS which boots into GUI. How, upon startup, can I not boot into the GUI and instead, boot into the CLI? I want to do this at computer startup time.
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1answer
224 views

How do I get an RPM .spec file from FPM (Effing Package Management)?

I have made a package with Effing Package Management on CentOS 6, and sent people the fpm... stuff to generate it. It looks like some of these people I trust would like to see a .spec file, too. I ...
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1answer
77 views

Hosting a Server on a CentOS Virtual Machine - Bridged Connection?

I have a Virtual Machine (VMWare) running CentOS 6.7. I am looking to host a Shiny Server for R, with which I am deploying a Web Application on my corporate network. I think that I need a Static ...
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Clipboard Stopped Working: Centos 6

I have a client in my office that's running CentOS 6.x that's experienced a curious GUI malfunction. Basically the clipboard has stopped accepting output system wide. For example in Gedit "ctrl+C" ...
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1answer
38 views

How do I allow incoming TCP Traffic on a Port in CentOS 6.7?

I am trying to configure a R Shiny Server on CentOS 6.7, and I need to allow incoming TCP traffic on Port 3838. I am new to Linux and was wondering how I can modify my settings to allow incoming ...
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19 views

How to add a disk

I would like to start to use a disk: /dev/sda (see bellow). What do I need to do before I could copy files on it? (centos 6) # fdisk -l Disk /dev/sda: 1030.8 GB, 1030792151040 bytes 255 heads, 63 ...
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AWS EC2 Disk not installed

Using Amazon EC2 instance and I have a running CentOS 6.5. I recently went to exchange the disc from the machine. did the procedure turn off the machine to a snapshot of the old drive and climb a new ...
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18 views

Request Tracker on linux gives CLOSE_WAIT

Hi I have an RT installation on CentOs 6.7 and RT 4.0, I can log in and all, but after a while I am seeing CLOSE_WAIT socket is created for each selection that I make on the dashboard. Eventually the ...
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135 views

Cent Os minimal installation with Fingerprint Athuntication and Fluxbox

I just installed CentOS 7 minimal with fluxbox. I want to have fingerprint authentication to login into my os. Can anyone provide me steps to do it.
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3answers
285 views

Backup files rather than deleting them in Linux

Suppose if I delete any file using the command prompt (I'm talking about Linux), that file is gone, I can't get back that file. If I by mistake delete any important file, then that would be a big ...
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1answer
40 views

bash prompt change after user default directory change

There is something I am not understanding. I have used the method found here about changing user default directory using vipw /etc/passwd However once I go into this file and change a user default ...