CentOS stands for Community ENTerprise Operating System, the most popular Linux distribution for web servers with almost 30% of all servers using it. Third-party software is not included in the base.

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Centos 6.5 grub menu issues

I am using CentOS 6.5 on vmware workstation. I have modified /boot/grub/grub.conf file by adding different titles and even updated the existing menu title also. But, while booting it is just showing ...
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3 views

CentOS 7, logfile archives, and lighttpd

There's a service running on my server that rotates log files by appending the date to them and leaving the original log file empty. For example, with lighttpd, my access.log becomes ...
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2answers
11 views

CentOS 7 install PostgreSQL dependency error

When running yum install postgresql-server.x86_64, I encounter the following error: --> Processing Dependency: libreadline.so.5()(64bit) for package: postgresql-server-8.1.23-10.el5_10.x86_64 ...
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4 views

Permissions set to PSACLN lock me out of files

The server's FTP sets files uploaded automatically to the group PSACLN The problem is if I add myself to the group, then the FTP shows only my files on the server. It hides all other files. If I ...
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2answers
32 views

Linux “man” pages appear as gibberish in CentOS

On my CentOS 6 box, all the man pages and some tools that support --help show gibberish. For example, if I type: man man I get this: ^HZ[wã¸~ǯÀjZÊèvg:=3ÌlËm’¾­¤ÞÎl<;HHBL´Z}òãSe{l?´)B¡ê«¯ ...
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22 views

Systemd docker container service does not work with CentOS 7

Here is the service (/etc/systemd/system/docker-mysql.service): [Unit] Description=MySQL container Author=Me After=docker.service [Service] User=root Restart=on-failure RestartSec=10 ...
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7 views

RHEL 5 box constantly displaying NIC statistics on console screen, how can I disable this?

I have a RHEL 5 box that is constantly displaying nic statistics on the console screen when using the KVM. This makes it very hard to do any troubleshooting when the box goes down as these statistics ...
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13 views

Failing to install PY2NEO

I am trying to install py2neo on a CentOS server. It fails with the following message: File "setup.py", line 29, in <module> from py2neo import __author__, __email__, __license__, __package__, ...
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1answer
11 views

GNU screen: Utmp slot not found

I've just had a dedicated server set up with the most minimal install of CentOS 7, and I just installed screen. When I run it under my normal user account, open a new screen window, and then go to ...
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19 views

No browsing issue on PPTP VPN Server on CentOS 6 64bit

I am trying to setup a VPN server in CentOS6 64bit. I used the first 4 steps of following document to setup the server . ...
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1answer
20 views

What happens when I truncate a file that is in use?

Around the web many people say you can truncate a file using > filename or truncate -s0 filename while file begin used I know everytime a process write in a file, the process uses a offset for ...
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40 views

Installing CentOS from bootUSB with two ISO files

I want to install CentOS upon Windows 8(dual boot) replacing Ubuntu 11.04. I have two ISO files (dvd1 and dvd2). Suggest me ways to install the OS from USB. I tried using Unetbootin but it is not ...
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17 views

ffmpeg on centos 5: Encoder not found for output stream #0.0 [closed]

I have just deployed my application to test server running Centos 5.5. FFMPEG version installed there is 0.6.1. While attempting to transcode mp4 file to webm, I get missing encoder error: FFmpeg ...
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9 views

Centos asterisk system crash

I have Asterisk 11.14.1 running on one of my machine with Freepbx, a fresh install with Sangoma card. However whilst setting up i.e during the process of Sangoma card detection, I faced a problem ...
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1answer
84 views

Errors with a phpMyAdmin install on CentOS 7

Well, I was trying to install phpMyAdmin on CentOS 7 (64bit) and this happens. Here is a Pastebin of the output from yum install phpmyadmin because can’t get code thing to work. [root@ftb ~]# yum ...
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1answer
23 views

Private server with domain name structure

I'm doing some tests/studying on a private server but I don't understand the structure. It's a centos server. This server has a private IP 10.x.x.x. This server is also linked to a domain name, so it ...
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19 views

Serial port on Virtualized Centos 7

I've just installed a Centos 7 on a VMware box. I would like use a passthrough to the physical serial port to connect our ups, but the serial is not recognized... I also tried installing a vMA ...
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2answers
40 views

No package available when installing packages on CentOS 6.6

I wanted to install mysql-server on CentOS 6.6 (64bit). When I run yum install mysql-server, I get the following error: root@ip-50-62[/home/syn]# yum install mysql-server Loaded plugins: ...
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3answers
50 views

Where does this name come from? root@<hostname>

When I putty into my CentOS 6 server I am shown root@ DemandStream Development This was a copied and repurposed Linux VM from one of our development environments. How do I change this name? It seems ...
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30 views

How can you create a USB installation drive w/ partition for kickstart files in CentOS 7?

How would you create a CentOS 7 USB installer with a data partition to store kickstart files? We will be getting some new servers shortly and overall I’m expecting to do over 30 servers installs. ...
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17 views

virt-install fails to start in centos 6.6

I am trying to host virtual KVM machines on my server. Specs: CentOS release 6.6 (Final) processor : 11 vendor_id : GenuineIntel cpu family : 6 model : 45 model name : ...
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1answer
21 views

Resizing LVM Partitions

I'm trying to resize a couple of my LVM partitions. I have one that is 850GB (/dev/mapper/cl-home) and one that is 50GB (/dev/mapper/cl-root). I'd like to make it so that cl-home is 750GB and cl-root ...
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1answer
14 views

FFMpeg filters compilation on CentOS

I have compiled FFMPEG on CentOS 6.6 using this guide: https://trac.ffmpeg.org/wiki/CompilationGuide/Centos But, whenever I issue command ffmpeg -filters The output is FFmpeg version 0.6.5, ...
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51 views

What is the difference between CentOS “DVD” vs “Everything” ISOs

What is the difference between the DVD ISO and the Everything ISO? These options are presented on the CentOS download page but there is no explanation as to what the difference is.
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20 views

Trying to yum install ntfs-3g by borrowing mount space from a shared drive

I am working in Centos 6 in a linux partition in my computer, which seems to have insufficient space for my needs (less than 100Gb). I have a shared drive mounted with Tbs of space which I am trying ...
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12 views

Wordpress extremely slow in VPS

Recently a client buy a "unmanaged" VPS at 1&1 and since a few days the site running on it, which is a Wordpress, is extremely slow and I can't find what the cause is meaning if it's at software ...
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15 views

Iptables Port Forwarding To Different IPs Based on Port

On a CentOS 6 server with an IP address of 172.16.1.10, how can I configure iptables to route traffic destined for 172.16.1.10:80 to 192.168.1.10:80, and traffic destined for 172.16.1.10:8080 to ...
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18 views

Pure-FTPD certificate not being used

I am using Pure-FTPD from the epel repository on CentOS 6. Now I have configured to enable TLS which works fine however for some reason it wont make use of the certificate file I have placed in ...
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11 views

How to Create a VirtualBox like Oracle developer day VM using CentOs?

Oracle has provided us a way to use Oracle Database on Mac with its Developer day VM's. But its of huge size and I couldn't resume the download. So I want to build a VM with Oracle Database installed. ...
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1answer
20 views

How do I stop recurring error messages from appearing in messages and auditd.log?

On my CentOS linux machine, in my auditd.conf file, I have set my max_log_file_action=keep_logs. However, in my /var/log/messages and /var/log/auditd.log, the following message appears multiple times ...
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1answer
41 views

How can I get yum to recommend packages based on my stupidity?

I used to use Ubuntu (apt-get) and I feel like if I would say apt-get install this_packge and there was a package named this_package, that it would recognize the mistake and say something like: ... ...
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12 views

X11 not starting correctly

I'm using the i3 window manager on Centos 6.5, with no GDM. I can boot fine, log in via the console, all works fine. When I do startx to load my .xinitrc file and start i3, it appears to start X, but ...
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25 views

sendmail think every word in a message is a recipient

I encounter a strange problem in some mails. sendmail things that every word of the message is a recipient which causes strange behaviour that I do not know how to solve. if someone has any ...
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1answer
24 views

how to upgrade ffmpeg to latest version in centos 5.11?

I have CentoS 5.11 installed. and ffmpeg 0.10.2 [ [root@cs1590 ~]# ffmpeg ffmpeg version 0.10.2.git Copyright (c) 2000-2012 the FFmpeg developers built on Jun 5 2012 08:51:26 with gcc 4.1.2 ...
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1answer
45 views

To use ssh-id-copy do you need both id_rsa.pub and id_rsa?

I am trying to setup a second access ssh key for a friend. He sent me his id_rsa.pub. ssh-copy-id -i id_rsa.pub root@123.123.123.123 /usr/local/bin/ssh-copy-id: ERROR: failed to open ID file ...
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1answer
180 views

New version of java is installed but still using previous version

The java version on the server was 1.6.0_37, I used yum install java-1.7.0-openjdk to install Java-1.7 but after using this command when I used java -version the version of Java is still 1.6.0. How to ...
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1answer
23 views

Prompt for values until press ENTER key with empty value

I'm working in a bash script for automatize some tasks. This is what I have done until now: #!/usr/bin/env bash PS3='Please enter your choice: ' options=("Create new group" "Add users to group" ...
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23 views

Using dnsmasq with KVM

I just installed KVM on a CentOS 7 x64 minimal installation version at home. And I got a problem when the guest is trying to get an IP from the internal DHCP server from KVM (dnsmasq). I already have ...
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36 views

Why while doing a CentOS 7 installation (with Windows 7) at the partition step Windows partitions (NTFS) are not visible?

I want to install CentOS 7 on my machine along with Windows 7 prof 64 bit OS. I download CentOS iso and make pendrive bootable by using dd command in Linux. When I started installation I selected ...
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82 views

Install Lotus Domino on Centos

I'm trying to install a trial version of Lotus Domino (from this official download page) on a Centos machine. I'm following this instruction page to install Lotus Domino. But when I'm trying to ...
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1answer
73 views

I can't access my server on VM (VirtualBox) in centOS 7

I do install VirtualBox on Windows 7, and create a virtual machine, which install centOS 7. Then in centOS7 perform the installation of CollabNet Subversion Edge, following this information as a guide ...
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28 views

How can I add ethernet port in CentOS VM running in Parallels?

I have Parallels installed on OS X 10.10, with a VM of CentOS 6.6 installed. Upon installation, eth0 was automatically configured (as a wired connection), and allows me to connect to my wireless ...
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39 views

Network issue with CentOS 7?

I have a VirtualBox machine running CentOS 7. The host is my Mac and the I'm using bridge adapter mode for the VM. Looks like I’m unable to install (yum) updates or even (yum) net-tools. I’m getting ...
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CentOS 6.2 equivalent script for Windows code

I want to write a equivalent shell script which will run at regular intervals. Here is my Windows version which I scheduled to flip active windows. set WshShell = ...
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1answer
14 views

How to restart mouse tracking in X windows?

I'm on a Centos 4 32 bit machine and have connected from my MacBook via VNC to a DISPLAY created with vncserver. All was working well for the past month, then suddenly today, the mouse stopped ...
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1answer
13 views

Unable to get kickstart file from http webserver?

I'm trying to get a vm up using a kickstart file. However, whenever the virtual machine initalize, it says it is unable to located the kickstart file from the location provided. Code to build vm: ...
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1answer
27 views

Centos my.cfg file is incomplete

I recently got a server which has mysql running and I want to access to it remotely. I searched internet and I find out that my.cfg file in /etc/ location has a property that will enable that: ...
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1answer
324 views

install php-fpm on centos after remoe it

i install php-fpm and php-mysql and nginx then i remove it and update servers kernel. now, when i want to install php-fpm ,.. dont install $>uname -a 2.6.32-504.3.3.el6.x86_64 #1 SMP Wed Dec 17 ...
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1answer
26 views

Switch Server to use GCC version 4.8.1

I'm banging my head against a wall, I followed the instructions detailed here: http://superuser.com/a/677640 When I ran yum install devtoolset-2-gcc-4.8.1 devtoolset-2-gcc-c++-4.8.1 this was the ...
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1answer
120 views

Webcam problems on Centos 6.6

I've been unable to get a few different webcams working on CentOS 6.6. (Logitech C270 & Creative Live! Cam Sync HD) I think it's related udev but unsure. The following are my /var/log/Xorg.0.log ...