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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546 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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312 views

Setup default PHP version in Plesk 12

I've just setup a Plesk 12 CentOS6 vServer. I installed some PHP-versions like 5.4, 5.5 and 5.6. The customers can change the running PHP version in the interface. All is working fine, but I have one ...
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1k views

docker-machine behind corporate proxy

I've installed Machine (Docker tool), and I'm trying to learn how to use it by following the user guide. I'm running centOS 6.6 As I am working behind a company proxy, I exported some environnement ...
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486 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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426 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 ...
2
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598 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 ...
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30 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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32 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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22 views

How to troubleshoot marketing e-mail inbox rate / deliverability?

After previously using managed ESP's, we've recently switched over to our own server (CentOS 6) that's set up to send bulk e-mails with 12 IPs/SPF/DKIM. Campaigns are processed and sent via ...
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33 views

CentOS 6 with User Permission (Read at message)

I have create users on CentOS 6 between test1 and test2 so I login on user test1 on ssh and i tried to access home dir of test2 so why it can access? how i can setting for other users can't access ...
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83 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 ...
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170 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 ...
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312 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 ...
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150 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 ...
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252 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 ...
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32 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. ...
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430 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) ...
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20 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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871 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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211 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 ...
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211 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 ...
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167 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 ...
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750 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 ...
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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 ...
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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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25 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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17 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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18 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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22 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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9 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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102 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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64 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 ...
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13 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: ...
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47 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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18 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 ...
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103 views

Openwrt And CoovaChilli

Can anybody tell me how to install CoovaChilli 1.3.0 on my router. Im using Router Model :Media-Tek MT7620A Evaluation Board Firmware version :OpenWrt Attitude Adjustment 12.09.1/LuCI ...
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33 views

CentOS - Mouse and keyboad do not work after deleting /var/cache

My mouse and keyboard do not work anymore in CentOS 6.5 after I deleted /var/cache and restarted my PC.
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239 views

wget through proxy in virtual box (cloudera quickstart VM - Cent OS)

I have installed the Cloudera Quickstart VM 5.3.0 running on virtual box for windows 7 and I would like to run a wget command but I have troubles with my company proxy (which needs authentification). ...
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0answers
673 views

How to install GLIBC_2.15 and GLIBCXX_3.4.20 on centos 6.6 ?How to setup YCM?

Recently I'm trying to setup YCM on system of centos 6.6,however the system doesn't provide gcc of version high enough to support the work of clang.It is quite a trouble for me to update the gcc,more ...
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197 views

Can not ping the Router in GNS3 via vmnet1

I have installed GNS3 on CentOS6.2. And on GNS3, f0/0 of c3725 connects to CentOS6.2 via vmnet1. I mannually assign 2001:cafe::1/64 to f0/0 of c3725 while I assign 2001:cafe::2/64 to vmnet1. Here ...
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0answers
209 views

Installed PHP extensions to wrong PHP version

I just bought a VPS and it came with PHP5.3.3 and that wasn't good for our website, so I successfully (so it seemed, anyway) installed PHP5.6.7 and successfully registered it with Plesk. For the ...
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0answers
29 views

Script does not start when OS start|reboot

I have a file at /etc/init/pdoneVendorBroker.conf with the following content: description "PDone Vendor Broker" start on runlevel [234] stop on runlevel [0156] respawn exec php ...
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45 views

Install 32 bit DB2 on 64 bit centos 6.2

I am trying to install 32 bit DB2 (9.0.3) on my 64 bit centos 6.2 but an error occured during installation that is shown below: There has been an attempt to install a DB2 install image for a ...
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114 views

phpList is not showing Initialize Database Option

I just installed phpList on server. Also created mysql database. Now, I am opening it through ip-address/phplist/admin, It is showing just header. I can't see any option to Initialize Database. Soo, I ...
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71 views

Starting VNC server: no displays configured in CentOS6.0-64 Minimal

I have installed tigervnc-server on CentOS6.0-64 Minimal. I am using Putty for it. I have also added user. Now, after setting server configuration asVNCSERVERS="1:jeeten" VNCSERVERARGS[1]="-geometry ...
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0answers
139 views

Unable to connect to internet from Centos VM

I am using VirtualBox 4.3, I have installed Centos 6.3. I have two adapters attached. 1) NAT 2) Host-Only I want to be able to setup a cluster of 3 machines which can talk to each other and also be ...
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0answers
579 views

How can CentOS 6 use python 2.6 with anaconda (python 2.7) installed?

I am using CentOS 6 and it uses python 2.6 by default. Recently, I install anaconda package with python 2.7 to work with scikit-learn, but now some packages that my OS uses are not available to it. I ...
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0answers
105 views

rm -rf * results in “Killed”

I used PHP to generate about 4,000,000 files in a directory (f/) because I was bored. When I cd .. and use rm -rf f, it simply returns "Killed" about half a second later and does not delete the ...
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232 views

How to spilt a bootable linux distro iso file onto multiple dvds or cds?

I have customized a centOS distro , by including some packages such as VLC,eclipse etc. but now the size of distro exceeds 7.42 gb. I want to : split the large distro iso into multiple small iso ...
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224 views

Zenoss crashing

We have had a Zenoss installation for a couple of years. Everything was fine until about a several weeks ago when the system being out of memory. There was no significant event that could've led to ...