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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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
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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2answers
298 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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0answers
11 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 ...
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0answers
435 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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1answer
3k views

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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3answers
208 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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4answers
15k views

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
16 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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0answers
7 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 ...
1
vote
1answer
44 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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0answers
13 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
16 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 ...
0
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1answer
40 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 ...
0
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1answer
30 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 \ ...
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1answer
511 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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2answers
68 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 ...
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1answer
42 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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1answer
46 views

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
20k 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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votes
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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0answers
664 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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2answers
7k 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
117 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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vote
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 ...
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0answers
53 views

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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0answers
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
585 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: ...
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0answers
34 views

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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votes
2answers
62k 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
163 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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vote
1answer
73 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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0answers
26 views

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
34 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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0answers
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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0answers
28 views

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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0answers
15 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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0answers
124 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
278 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 ...
0
votes
1answer
34 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 ...
0
votes
1answer
27 views

Make a file drop immutable, linux

I'm trying to install a custombuild on my VPS. I got the file on it but the only problem is that I can't execute it. When I execute it an error message appears; "Cannot open: Permission denied". The ...
3
votes
2answers
8k views

NIS failing on CentOS 6

Solved: See bottom. tl;dr: enable network manager. I'm trying to set up a CentOS6 system to login using NIS. I've set up the NISDOMAIN and for the files like passwd to be on the NIS server in ...
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0answers
40 views

Command for finding and replacing directories

I was wondering: Is it possible to find specific directories and replace the whole directory with a newer version of the directory. It’s about mass updating WordPress Templates, let’s say we have ...
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0answers
88 views

kernel(security_netlink_recv) = 0x3a2204c6 is needed

I am trying to install drbd (packages are fetched from elrepo). Both drbd and kmod-drbd are version 8.4.3-1 and I am using CentOS 6.7 with kernel version 2.6.32-573.el6.x86_64. When trying to ...
0
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1answer
1k views

How to install wxpython on centos 6.5 (python 2.7)?

I've updated python on my centos to 2.7 and installed wxpython via: yum install python-wx Unfortunately python can't find the library and I get an error: ImportError: No module named wx Did I ...
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0answers
18 views

Multi-user ftp configuration issue

I have a server running centos 6.5 and proftpd. There is already a user "master.admin" created, thus having his own home directory (/home/master.admin). Now, I want to add client users -for example: ...
0
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1answer
131 views

Wildcard IP addresses for an iSCSI target initiator-address doesn’t seem to work on CentOS 6

In /etc/tgt/targets.conf wildcard (172.16.2.*) not work with initiator-address. I'm preparing for Red Hat High Availability Clustering exam (EX436). The student workbook says: With tgtadm ...
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1answer
95 views

centos 6.0 : how to print to a Xerox laser printer

I use a centos 6.0. How can I print to the Xerox printer from my applications -- like LibreOffice, emacs, eclipse, chrome, etc ?
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0answers
51 views

Safe backup/restore of Linux partitions from a Windows system

I have a dual boot laptop, that contains a Linux CentOS 6 partition and a separate Microsoft Windows 7 partition. The Linux partition is not letting me access to its GUI anymore, so I'll have to ...
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0answers
19 views

Tuleap - Very long response time

We observe very long repsonse time ( ~ 1 minute) in our installation of Tuleap on the configuration as follow : Tuleap version = 8.3.99.4 OS = Centos 6.6 VM : FLex'server 4 cores, 4 Gb ram. We ...