CentOS is an Enterprise-class Linux Distribution derived from Redhat Enterprise Linux sources freely provided to the public.

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After install Centos 6.3 from USB, it doesn't boot

I installed CentOS on my machine from my USB. I did a minimal CentOS USB drive with UNetbootin. After I install the CentOS, when i try to reboot, it does not starts. I have only the cursor blinking on ...
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703 views

Can't launch Snort on CentOS 6.3

I have a problem installing Snort on CentOS 6.3 in a virtual environment. When I run snort - ./snort status: Running in packet dump mode --== Initializing Snort ==-- Initializing Output ...
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232 views

Multiple Sessions and 1 is slow

Setup is a Centos 6 x64 server and a Windows 7 client running putty. Multiple sessions are opened to this same server from the same client. Periodically, one of these sessions slows to a crawl and ...
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689 views

Install CentOS in a VirtualBox to a Compact Flash and use it on a mini PC

I got into a very specific situation and want to get to know your opinions. I have got a mini PC with Intel Atom processor which should run CentOS with an upgraded kernel to 3.x and some ...
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869 views

I can't find my tape library changer under centos 5 with a quantum scalar i40

i have a quantum scalar i40 connect on a centos 5 machine trough SAS interface. I fight with it since a while because the media changer does not work. I finally understood yesterday that the system ...
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363 views

ffmpeg: error while running with libx264

Main code: ffmpeg -i 2269801.avi -threads 0 -vcodec libx264 -b 900k -acodec libfaac -ar 44100 -ab 96k -ac 2 earthgirlsareeasy1.mp4 [libx264 @ 0x16cdde10]broken ffmpeg default settings detected ...
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257 views

i386 libtool conflicting with x86_64 libtool when installing Handbrake

I've been trying to install Handbrake on centos 5.8 with the help of some different guides. I'm running x86_64, and whenever I try to install packages necessary to build the binary, the arch ends up ...
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961 views

Hanging at “Running Transaction Test” when trying to install php-soap

I have here a CentOS 5 and I'm trying to run yum install php-soap but the installer hangs on and the last step is Running Transaction Test. I found out that NFS shares are the problem. See here or ...
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9 views

Firewalld / iptables on CentOS 7 - ports are not really being opened after recent update

My problem is that after a recent update I can no longer open any port. I have tried disabling firewalld and opening using just iptables. Ports are being "opened" as on the list that I have from ...
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9 views

CentOS 7 grub option is missing after upgrading windows 8 to 10

My system was dual booted with CentOS 7 and Windows 8, after upgrading from Windows 8 to latest Windows 10 progrub is over written by Windows MBR. How do I reinstall grub on my system.
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29 views

Is there a way to use epel and local yum together

I am using RHEL7. If I do a fresh install of RHEL7(with connected internet) and then installing epel rpm. All the packages are getting installed after that. But then few packages have dependencies ...
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13 views

Unable to upgrade PHP 5.3.3 to 5.6 on centOS 6.3

I got a problem with upgrading PHP 5.3.3 to 5.6 on linux centOS 6.3. I've already search it on the net and got answers including here (Since it's a classic problem), but still not able to solve it. I ...
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22 views

Installing Xfce4.12 on CentOS

My lab computer has been upgraded to a fresh install of CentOS7 during the weekend. So far so good. I would like to use Xfce over the default Gnome shell. I have super user access on the machine but I ...
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19 views

I cant find preference in centos 7

I just installed centos 7 and the desktop is missing the preferences section how can i add preferences to my desktop?
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32 views

Different ways to use my cloud virtual machine lead to different interface languages

I use qcloud(a cloud service in China) to run a CentOS 7. In the qlcoud webpage panel, I can use the vnc way to check out my machine. In my own Mac, I can use the ssh to log into my machine. ...
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26 views

Cannot connect to any host (including localhost) using PAC Manager on CentOS 7

I'm using following system: [alexus@wcmisdlin02 Desktop]$ cat /etc/redhat-release CentOS Linux release 7.2.1511 (Core) [alexus@wcmisdlin02 Desktop]$ uname -a Linux wcmisdlin02.uftmasterad.org ...
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26 views

How do I install and configure NTP on CentOS 7 from source? (include/ntp_crypt.h errors)

I unpacked the .tar.gz file for the newest NTP. I installed the gcc compiler and libcap devel. I ran the ./configure command with various flags and options. I ran make check and found an error. The ...
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23 views

What is the equivalent to this apt-get when installing PostgreSQL extension for acoustid?

On bitbucket, it says to install the extension using sudo apt-get install postgresql-9.X-acoustid. but I'm running on CentOS... when I replace apt-get with yum: $ sudo apt-get install ...
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13 views

How to disabled login for domain user in CentOS 6

I have all my CentOS 6 machines joined with samba and winbind to a windows domain (2008) and all users that I need to access those machines are in a certain AD group called "engineering". I also have ...
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7 views

lx92 server is not connecting from individual session but its connecting from Jump servre

Please help on this I have an issue in my environment my server Lx52 is connecting from Jump server IX4 but its not connecting from separate putty session Note :we are using Xen desktop through ...
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13 views

How do I get a manifest to run from my Puppet Master server to a Puppet Agent node?

I am trying to run a Puppet manifest for the first time on two new servers. But I keep getting errors. I recently set up two CentOS v7 servers. They have passwordless SSH between them. Ports 22, ...
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27 views

Network not working after wake on lan

I just installed a fresh copy of CentOS 7 on my server at home, it worked great until I used etherwake to wake the server up. After doing so the network no longer works, I'm not sure if this is a ...
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20 views

stop while booting giving error of Genetrating “/run/initramfs/rdsosreport.txt”

I am getting following error while booting my centos 7 machine Generating "/run/initramfs/rdsosreport.txt" Entering emergency mode. Exit the shell to continue. Type "journalctl" to view system logs. ...
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12 views

Set firewalld on CentOS 7 for Cloudstack service and unistall iptables

I was following Cloudstack installation instructions, when I realized that iptables is not included in the OS, it was replaced by firewalld. So first of all I've shut down firewalld: systemctl stop ...
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30 views

problems during install gnome on Centos 7?

My environment is VirtualBox 5.0.8 / Centos 7(64) and I create a local repository "local_centos7" from "CentOS-7.0-1406-x86_64-DVD.iso" yum groupinstall "GNOME Desktop" some errors occur Error: ...
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27 views

Cannot access server outside of server`

I have a node server listening on port 80. If I send a request to it like this: request('http://127.0.0.1:80',function(err,res,data) {console.log(data)}) It works. It returns what I would expect. ...
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20 views

Winexe “failed to open connection - NT_STATUS_RESOURCE_NAME_NOT_FOUND”

I'm trying to run secedit on a Windows server using cmd, remotely from a Linux (CentOS6) computer. I installed Winexe for this purpose, but the command winexe -U username%password //host "cmd.exe" ...
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26 views

Centos 7 persistent static routes for any interface

I am trying to set up some static routes in a CentOS 7 box. The official RHEL says it is possible to add files in /etc/sysconfig/network-scripts/route-interface. This approach works, however I need ...
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20 views

problem with ABAQUS job on Rocks cluster

I created ROCKS6 cluster and i installed ABAQUS on my cluster and it works well on frontend, but i can not submit job on my 2 other compute nodes. I just want to run ABAQUS on this cluster (frontend ...
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29 views

Syslog stopped logging after using journalctl

Today I was configuring some things in my VPS running CentOS 7, and checked /var/log/secure several times without noticing any problems.Later I used journalctl to look for some cron logs, and now it ...
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41 views

Find reason of shutdown using var/log/messages

I am facing the issue of random shutdowns, I have attached the log messages if anyone can interpret and let me know what is the reason of shutdown, I will be more than grateful. LOG MESSAGES Jan 11 ...
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55 views

Can't install phpMyAdmin with PHP 5.6

I work on a Centos7 with php56 (via remi-repo) and httpd and maria-db I try to install phpmyAdmin via "yum install phpmyadmin" but every time I have this message: Erreur : Paquet : ...
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38 views

How to install ABAQUS software on Rocks cluster 6.2

First of all sorry for my english. I create a new cluster with 3 . which one of them is frontend and two of them is compute . i should notice that, i am newest in linux and linux hpc clustering. I ...
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28 views

Unable to umount dvd on CentOS 7.2 kickstart installation

I have a kickstart file that was working fine on a RHEL 6 installation before, and now I want to reuse it to provide an automated installation on a CentOS/RHEL 7 DVD (currently testing on CentOS ...
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44 views

Centos7 crontab @reboot sleep not working

I am currently trying to get my server to relaunch a few things on server reboot but they were failing due to screen not yet being loaded (I believe), in an attempt to fix this I added a 3min sleep to ...
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27 views

rsyslog not working

I have been trying to start the rsyslog service on centos 7 but I wont work. Please see te configuration file- # rsyslog configuration file # For more information see ...
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8 views

Claiming node on swiftstack times out

I am trying to connect a node that I have installed CentOS on using SwiftStack. To make this connection, both port 443/TCP and 1194/UDP will need to allow outgoing traffic on your firewall. I have ...
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73 views

CentOS 7 blurry, fuzzy screen

I just installed CentOS 7 to Dell Optiplex 780 and I have problem with display. I am using two screens and they are quite blurry, fuzzy. You can see the problem (look at the terminal) - ...
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54 views

Installing qemu-kvm 2.5 on Centos 7

Are there any repos out there that carry the most up-to-date version of qemu-kvm as well as dependencies? I ask because the newest qemu-system has a HUGE list of dependencies and I would like to not ...
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15 views

Centos 7 i686 Log entries

It appears that my system has a built in bootable recovery image that appears when it doesn't boot to windows and it presents it self as a SMI USB drive. Linux is picking this up as SDE which doesn't ...
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32 views

TLSv1.2 support in CentOS 5.8

Right now I can't access HTTPS site from PhantomJS headless WebKit browser because of TLSv1.2 In my CentOS 5.8 I have following OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008 verison installed. I think I ...
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27 views

Why can't I install CentOS 7 in dual bot wth Winows 8.1?

I'm getting crazy with this OS :'( I want immediately say that I'm sorry for my English, I hope I can explain myself well. Please let me just explain few things: I need to build something under ...
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83 views

CentOS update from 7.1 to 7.2 with 2.6 OpenVZ kernel?

We are using CentOS 7.1: $ cat /etc/redhat-release CentOS Linux release 7.1.1503 (Core) We deferred the 7.2 upgrade. It looks like it did not cause any problems so we are planning an upgrade. The ...
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106 views

Error getting repository data for epel, repository not found

I have installed the newest epel and want to install mod_evasive rpm -Uvh http://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm Uname -a: Linux #1 SMP Fri Nov 22 ...
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12 views

Aardvark Control Center wants TLS/SSE2 Library

Environment: CentOS 7.1 64-bit using Intel i7-4771 Gnome 3 shell I downloaded the Aardvark Control Center (Total Phase) and tried to execute the controlctr bash file, however I received the error ...
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21 views

Lots of strange disappearing connections to my Centos7 host

I run my website on a Centos7 cloud instance. I log in via ssh, and to view connections I use 'ss -tap' Whenever I first do this I see approximately two dozen unique ip addresses for 'users: httpd', ...
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45 views

Having problems with make and opencv

I'm trying to build opencv for my x86_64 Centos 6 operating system. I think the problem is make is trying to use the 32 bit version of the bz2 library instead of the 64 bit version. I get this ...
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23 views

Prune yum of stale installed packages/duplicate gcc packages after manual install

I'm in a weird situation, and maybe I've messed something up and just need to hit the reset button and re-install CentOS. Off a fresh install of CentOS7.1 the other day, I noticed the latest version ...
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31 views

PHP-FPM Permission denied on folders

I get read/write errors on a new CentOS + Nginx + PHP-FPM server, this is muy configuration Nginx user nginx; [...] fastcgi_pass 127.0.0.1:9000; PHP-FPM user = nginx group = nginx listen = ...
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47 views

Unable to install yum on cpanel server

I recently signed up on godaddy and have a user account on cpanel I can successfully use ssh to login to my server this is my operating system details when i use uname -a Linux ...