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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1answer
577 views

Why does ping to google.com or 8.8.8.8 fails

I am using Cent OS 6.4 and it is in a official lab. ping google.com gives the below output and hangs: [root@LAB1 ~]# ping google.com PING google.com (74.125.236.195) 56(84) bytes of data. ping ...
0
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1answer
21 views

Filetype is NET? Other sites on server are “folder”

I am curious as to why two sites on my Centos 6 server are "NET" as the filetype. Does it make a difference vs a folder? Here is a picture for better understanding: As you can see, ...
0
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3answers
51 views

Tuleap: Configuration of Bug Tracker report

I created a Bug Tracker and open different bugs. When I enter in my Bug Tracker, I see a web page with a search form in the upper part and a list with the different bugs in the lower part. However by ...
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0answers
14 views

Linux ALSA: No sound out from internal speaker

There is no audio output when running "Test Speakers" in Sound Preferences -> Hardware -> pcsp. The internal speaker worked fine under Windows. Sound can, however, be heard when headphones or a ...
0
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1answer
207 views

generate a keystore file in CentOS

How do I generate a keystore file in CentOS? I basically used the following command to generate the keystore and keys: keytool -genkey -alias signFiles -keystore name however I get the ...
0
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2answers
2k 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 ...
0
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1answer
42 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 ...
0
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2answers
22 views

CentOS 6.5 PHP extensions

I need to enable php extensions like PDO and GD but I can't find a section with all the PHP extensions enabled inside /etc/php.ini, so in which file is this defined? EDIT: using PHP Version 5.5.14 or ...
0
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1answer
12 views

Tuleap: display of project description

I entered a list in the description of my project with carriage return after each item of the list. However in the project page, when Tuleap displays the descritpion of the project, it suppressed the ...
0
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1answer
18 views

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 ...
1
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0answers
27 views

Linux Box Internet Speed

I have encountered a weird problem with my Centos6 Server, currently I have install Centos6.4 on a 64bit support CPU with 8GB of RAM and 500GB HDD. Just went to check on the internet this morning and ...
0
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1answer
178 views

Python2.7 / Pip2.7 install in Centos6: root does not see /usr/local/bin

I am trying to install Python2.7 in Centos 6. It's a pain as centos6 ships with python26 and yum is dependent on it. Furthermore yum does not seem to have python2.7 I ended up building it from ...
0
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1answer
27 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 ...
0
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0answers
85 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
8 views

CentOS login GUI Issue

I am trapped in weird problem. My Setup is CentOS 6.3 64 Bit My login screen is blinking so frequently that I am unable to see and login into it. I previously installed gtk2 using yum install gtk2, ...
3
votes
2answers
5k 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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vote
2answers
2k views

Setting up FQDN in CentOS 6.3

I have a domain name: example.com. I am setting up my CentOS 6.3 server's FQDN, it used to be centos63min. Reading on the internet, I found a lot of examples, where people name the server something ...
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0answers
9 views

CentOS - Creating a Virtual Internal Network

I've been looking around for a while now, and I can't seem to find an answer (maybe due to false terminology, searching for VLAN ends up bringing up something completely different). I want to create a ...
0
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2answers
192 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 ...
1
vote
1answer
357 views

PuPHPet, Vagrant and SSH - SSH Connection Timeout

I built a new CentOS 6.5 vagrant box and after provisioning, the SSH connection keeps timing out. I've attempted the steps in Vagrant ssh fails with VirtualBox but I receive errors (see below). I ...
-1
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0answers
18 views

Configure and Set up OTRS

I have configured "OTRS 3.3.7" tool in CentOS 6.5, I would like to set up ITIL process for Helpdesk ticketing System. Any help on seting up the process would be appreciated!
0
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1answer
98 views

Installing Oracle 12c on CentOs 6.4

I need to install Oracle DB 12c on Centos 6.5/6.4 that has no GUI (or xserver) installed, Is there a way to do it? Can you point me to a manual? Thanks
6
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2answers
22k views

Upgrading PHP 5.3.3 to 5.4.4 in CentOS 6.4

I'm using CentOS 6.4 (centos-release-6-4.el6.centos.10.x86_64). I'm trying to upgrade the php version from 5.3.3 to 5.4.4 by using: yum upgrade php-mysql php-devel php-gd php-pecl-memcache php-pspell ...
0
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0answers
28 views

centos 6.5 cant recognize gigabyte's onboard graphics card

I have just changed my OS to centos 6.5 and plugged in two monitors, both of the monitors are working but showing the same view. when I try to get the Display settings (System->Preferences->Display) I ...
4
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1answer
200 views

How to correct a screen wrapping around?

I got my hands on a Ubuntu System (which was displaying correctly) and I installed CentOS 6.3. The screen is wrapping around on itself. Any ideas? See for yourself
0
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1answer
87 views

How to hide a directory and its contents on Centos

A quick Google search did not clear up my issue. I need to hide a directory on Centos 6. I want to do that because I'm running the command tree to print the tree directory structure, but I don't want ...
0
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0answers
38 views

PPTP authenticate using LDAP

I'm using both centos 6.5 in PPTP and LDAP server (OpenDJ). Anyone know how to configure when connecting to PPTP VPN server it will authenticate using the LDAP credentials? Thanks
1
vote
1answer
59 views

Why is my yum update failing?

Why is my yum no longer working? It was previously working fine. But seems to have inexplicably stopped working. FYI, I'm running this on Centos system that is running in VirtualBox on my MacBook Pro. ...
0
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1answer
19 views

Connect to CentOS LAMP instance from Windows PCs

I have a CentOS 6 machine running on our network which has a simple LAMP installation on it. I have some files there which I would want to access through other Windows PC which I am able to do so ...
0
votes
1answer
275 views

Mirror repository won't work (The requested URL returned error: 403 Forbidden)

I'm trying to find out why I still get the 403 when running the yum install command. I have created a repository mirror which can be read from remote machines. Do you have any suggestions? I have ...
0
votes
1answer
24 views

How can I finish the unfinished transaction, so then I can make all the updates?

I try to use yum update and everytime it says me to run yum-complete-transaction first to finish the unfinished transactions remaining. When I try, it loops like forever, and sometimes it ends by ...
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0answers
25 views

Cannot load ubuntu and Mint after installing CentOS 6

I have a 64 bit laptop computer with two partitions containing Ubuntu 14.04 LTS and Mint 17 in each of them. There are some free space of about 20Gb and I have installed CentOS 6 into through USB ...
1
vote
1answer
36 views

Permission Denied in Crontab

I've searched half a day for the answer to this, with no luck. Any assistance will be appreciated. I have a PHP script that modifies the crontab, loads a new cron job, removes some etc. The script ...
1
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0answers
62 views

hadoop cluster high availability error couldn't find or load main class

[hduser@mn1 bin]$ ./hdfs zkfc -formatZK Error: Could not find or load main class ”-Djava.library.path=”.home.hduser.2.3.0″.lib” I did every step just like in this tutorial, TWICE. The error still ...
0
votes
0answers
29 views

Change order of two-factor-authentication

I am testing two-factor-authentication for ssh logins on some CentOS containers in our testing environment. I compiled my own rpms from github's source, installed and configured everything and have ...
0
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1answer
42 views

sfdisk can't create more than 4 partitions?

I'm running Centos 6 from command line, and I need to partition my disk using sfdisk more than 5 times. However I can't seem to create more than 4 partitions. >> sfdisk <scsi ID> --force ...
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0answers
14 views

CentOS bridged adapter

I am looking for a way to have a bridged adapter that can also forward ports to different IPs for my virtual machines. For example: 192.168.1.101:3391 192.168.1.102:3392 192.168.1.103:3393 Does ...
3
votes
2answers
3k 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 ...
0
votes
1answer
35 views

Cannot jail ssh account using ChrootDirectory

I am trying to jail my accounts into their home directory. I tried to do: Match group accounts X11Forwarding no AllowTcpForwarding no ForceCommand internal-sftp ChrootDirectory %h ...
0
votes
0answers
127 views

Samba 3.6.9 on CentOS 6.5 existing user unable to connect to new share

I've got a question about samba connectivity. I installed a minimal installation of CentOS 6.5 and have it as a member server of AD, as per this guide: ...
0
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3answers
33 views

Open man page using nano

I want to open man pages in another text editor, in this case "nano". Does anyone know how I can achieve this please?
0
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0answers
62 views

SELinux Dependency Errors - Spacewalk on CentOS 6

I've mostly followed this tutorial, and a few other resources, to get Spacewalk set up on a CentOS 6 server. http://www.computerglitch.net/bin/texts/CentOS6_Spacewalk_Server.php I'm getting errors at ...
0
votes
2answers
64 views

How to install VLC media player in CentOS6?

I am using the CentOS, version 6, GNU/Linux distribution. I am in need to install VLC media player, what command i need to use at the terminal? I have tried yum install vlc.
0
votes
1answer
119 views

cannot connect centos (dell precision) laptop to 2 external monitors (but I can connect to 1 external monitor)

This is my first post here and hope I am following the rules of the forum. I reviewed Connecting 2 External Monitors to a Laptop? and confused with hardware terminology to figure out if my Dell ...
0
votes
1answer
109 views

How to hide or remove the title bar of terminal in centos?

Want to remove the titlebar of the terminal. It would helpful if there is a way to generically do it for all the windows ? If not possible, still if it would be helpful if I can remove or hide the ...
2
votes
1answer
85 views

ffmpeg subtitle not visible

I'm using ffmpeg static. I have to two servers. When i encode at the first server, subtitle works; but it does not work at the second server. I installed fontconfig, fontconfig-devel, freetype, ...
0
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0answers
62 views

“muxserver_listen: link mux listener … => …: Operation not allowed” trying to reuse ssh socket

My ssh connection from Haiku OS nightly hrev46632 to a CentOS 6.4 box works fine. If I try to set it up to reuse sockets by following these directions: "...consider appending the following to your ...
0
votes
0answers
113 views

Build CentOS/RHEL with LFS Live CD

I am aiming at building customized centos/Rhel based distro using Linux From Scratch(LFS) hence, I am following this e-book : http://www.linuxfromscratch.org/lfs/downloads/6.3/ so ,I downloaded an ...
0
votes
1answer
44 views

Can I set-up sendmail on a LAN without a registered domain for testing mail?

I am running CentOS on a server at home which I use for development of Joomla websites. After they are developed, I move them to a hosting service. While developing the Joomla website on my home Linux ...
0
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0answers
98 views

Dual booting CentOS 6.4 and Ubuntu 12.04.03 LTS

First, I install CentOS 6.4 (64-bit) on /dev/sdb3, and subsequently CentOS install the bootload in /dev/sdb itself. Bootinfoscript indicated that the bootloader is legacy0.92 grub. Fine. Next, I ...