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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721 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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441 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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459 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 ...
2
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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 ...
2
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531 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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0answers
651 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 Folder:...
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23 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 Interspire,...
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35 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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85 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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176 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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337 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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173 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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264 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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530 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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21 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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0answers
896 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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214 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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212 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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176 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 /etc/...
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819 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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17 views

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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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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21 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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0answers
15 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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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 ...
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0answers
18 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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0answers
63 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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36 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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0answers
33 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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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 ...
0
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0answers
17 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
129 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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0answers
94 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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0answers
41 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
19 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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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
23 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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0answers
133 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 Trunk(0.11+...
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35 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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0answers
364 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). ...
0
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0answers
838 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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0answers
275 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
30 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 /var/bundles/...
0
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0answers
129 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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0answers
769 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
118 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 ...