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.

learn more… | top users | synonyms

2
votes
0answers
149 views

Making SSH connection to Centos 6.5 VM takes ages

I installed Centos 6.5 in a Virtual Box VM. Everything works smooth, except for SSH logins. It takes ages for the command prompt to display. With some verbosity added: debug2: kex_derive_keys ...
2
votes
0answers
271 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 ...
1
vote
0answers
61 views

Centos 6 Eclipse font rendering at 8pt

I am running Centos 6.4 and Eclipse Juno and I like coding at 8pt size. I keep seeing a few letters with no spaces in between them. I have tried DejaVu Sans Mono Book, Droid Sans Mono etc. The font in ...
1
vote
0answers
51 views

Avoiding sleep when lid is close and no one is logged in

I've an old Dell Latitude laptop that I've converted to CentOS 6.5. As this is going to work like a server (i.e. no one will use it directly) I've changed from UI the power management option to ignore ...
1
vote
0answers
41 views

How to keep mysqld alive with minimal memory?

I have a rackspace server that I have been renting to run my personal projects upon. Since I am cheap, it has 256Mb of RAM and honestly can't handle a lot. Every once in a while, when there is a sharp ...
1
vote
0answers
47 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 ...
1
vote
0answers
157 views

How to prepare a Centos ISO for creation of Xen domU guest with xl (not xm or virt-install)

I'm tearing my hair out. I will be scripting the creation of large numbers of small HVM (not PV) customer xen CentOS 6.5 guests on a CentOS 6.5 dom0. I therefore do not want to use virt-manager (I'm ...
1
vote
0answers
26 views

centOS is not reading windows8 partition while installing

I am installing centOS over windows 8 in dual boot mode. And I made 30GB free space through windows partition. But when I install centOS , it is not reading that partitions. It shows full hard-disk. ...
1
vote
0answers
170 views

Moved /lib64 to /backup_lib64 using sudo, now sudo doesn't work on CentOS6.4

I did sudo mv /lib64 /backup_lib64 to test some compilation. Now sudo doesn't work at all farhat@heracles:~/software/sudo-1.8.7$ sudo ls sudo: unable to dlopen /usr/libexec/sudoers.so: (null) ...
1
vote
0answers
18 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 ...
1
vote
0answers
658 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 ...
1
vote
0answers
352 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 ...
1
vote
0answers
139 views

Error In centos6 while compiling java classes,in tomcat6

I am newbie to Linux and Centos6. I bought server just now and want to deploy my web app in it. I am getting error while I am compiling my servlet classes. It showing me bash: javac: command not found ...
1
vote
0answers
192 views

Controlling USB media access on Red Hat or Centos Linux 6.3

I'm trying to control which users can use USB media (mass storage devices such as USB memory sticks and hard-drives) on Red Hat/ Centos 6.3 Linux. I would like something that is network wide, so a ...
1
vote
0answers
337 views

403 Forbiden on Apache (CentOS) Server

These are my VM setup: HOST: windows 7 ultimate 32bit GUEST: CentOs 6.3 i386 Virtualization soft: Oracle virtualBox 4.1.22 Networking: NAT -> (PORT FORWARD: HOST:8080 => GUEST:80) Shared ...
1
vote
0answers
144 views

Without pam (Pluggable Authentication Modules) how linux system will behave?

Suppose if we create nologin file under /etc then only root can login, but if we comment on all pam_nologin.so line in every file under /etc/pam.d/ then other user also login. That means these ...
1
vote
0answers
403 views

Setting reduced complexity passwords for a regular user

From root it is possible to set a single character password for any account Example: Here I created a account test3 and set the password t, and the password is accepted [root@localhost ~]# useradd ...
1
vote
0answers
2k views

Microsoft TTF fonts (like Tahoma) refuse to display on Centos 6.2

I've followed the instructions here: http://blog.whatgeek.com.pt/2011/11/install-core-fonts-centos-6/ All of the msttcorefonts fonts are extracted into the /usr/share/fonts/msttcorefonts directory ...
0
votes
0answers
4 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
votes
0answers
7 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, ...
0
votes
0answers
8 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
votes
0answers
18 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 ...
0
votes
0answers
29 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
0
votes
0answers
50 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: ...
0
votes
0answers
17 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 ...
0
votes
0answers
99 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
votes
0answers
25 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
votes
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 ...
0
votes
0answers
90 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
votes
0answers
42 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
0answers
101 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
0answers
74 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 ...
0
votes
0answers
26 views

Directory mode, Create mode Centos Samba

Can someone explain me theoretical side of the directory mode in Samba(centos)? I did check it on Samba main page but I was not smarter + 50 other pages. Maybe I just Google it wrong.
0
votes
0answers
28 views

How to setup openlava cluster environment without root?

I found the guide here: http://www.openlava.org/documentation/guide/getting_started.html and the thread here: https://groups.google.com/forum/#!topic/openlava-users/SCBPzOqoJ8U It says that openlava ...
0
votes
0answers
125 views

Menus of panels of centos 6.5 not always accesable when virtualbox guest windows 8.1 is on fullscreen

I have a computer with CentOS release 6.5 (x64) installed as a host. In a virtual machine of Virtualbox (4.3.6 r91406) I have a guest Windows 8.1 (x64) with guest additions installed. The Windows ...
0
votes
0answers
24 views

red 5 recorder app set up

Does anyone know how to set up this Red5 Recorder application on Red5 1 RC2 for Linux CentOS 6.4? I followed set up of WEB-INF folder from this document http://fms.denniehoopingarner.com/newapp.html ...
0
votes
0answers
213 views

How to mount a iSCSI/SAN storage drive to a stable device name (one that can't change on re-connect)?

We need stable device paths for our Twinstrata SAN drives. Many guides for setting up iSCSI connectors simply say to use a device path like /dev/sda or /dev/sdb. This is far from correct, I doubt ...
0
votes
0answers
26 views

Booting Error CentOS 6.4

CentOS 6.4 within Virtual Box on Mac was working fine before testing commands of init 3 (for console only mode). I am curious about I've typed init 0 (halt system). Now, when it boots, nothing other ...
0
votes
0answers
57 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
82 views

Running a Tomcat 6 with java 6 (1.6.0_39) on CentOS as limited user

The problem is binding to ports under 1024 with a non-root user. I've tried authbind, but it does not support multithreading, and our App spawn multiple threads, and some failed to bind ports. I've ...
0
votes
0answers
351 views

550 Permission Denied for new VSFTPD user

So I have had numerous searches in Google as well as here on Super User. None of them are properly addressing a solution and if so, they aren't related to my issue exactly. root works fine, but I ...
0
votes
0answers
170 views

Auto mounting USB device in Cent-OS 6.4 without GUI

Is there any way to auto mount a USB flash memory on Cent-OS like Ubuntu ?
0
votes
0answers
109 views

Unable to log in with correct credentials from different locations into vps

I have a VPS running CentOs 6.4 with CPanel 11.38. At the moment my 2 clients can't log in to the mailserver from their location. I have done it myself and the credentials are correct. I can log in ...
0
votes
0answers
93 views

Share home folder to multiple users in CentOS 6.3

Any way to share the home folder of user1 (/home/user/) to another user (user2) with only read permissions? As of now /home/user is the home directory of user1. I want to make it the home/readable ...
0
votes
0answers
72 views

Tomcat server installation error in Eclipse?

I installed tomcat server successfully, I checked also in the web browser using http://localhost:8080 it gives, and when I configure Tomcat in Eclipse it is showing an error like in this screenshot. ...
0
votes
0answers
92 views

VPS IP redirects to website instead of the IP directory? CentOs 6

So before I started putting websites on my VPS, I could access the IP directly and it would access the html folder in the /var/www/ area. But ever since I placed websites on the VPS, I can no longer ...
0
votes
0answers
75 views

rsync around a VPN connection on CentOS 6.4

I'm trying to rsync outside of a VPN connection. I have a CentOS 6.4 machine that has an open VPN connection, that capable of roughly 10Mbps, whereas the WAN connection is 40Mbps. I'm trying to rsync ...
0
votes
0answers
28 views

How to map the cursor keys in the group of keys between PC keyboard and numeric keypad to the numeric keypad?

I am running CentOS 6.4 on my home box. From day 1 I noticed that the cursor keys are not mapped to the keys in the numeric keypad. This is how things work in Windows. I found out that the cursor ...
0
votes
0answers
258 views

How to install Boost 1.46 for CentOS 6.4

I'm looking for boost 1.46 for my CentOS 6.4. Is this package available for CentOS 6.4? I need to install it to debug my program. I've install an older version of boost (1.41) but need at least 1.46. ...
0
votes
0answers
50 views

xend.err 'Error creating domain: pool Pool-0 not activated while creating virtual machine

im trying to load virtualised system. while creating virtual machine got an error xend.err 'Error creating domain: pool Pool-0 not activated