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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How to install parsoid in CentOS?

I am trying to install VisualEditor extension http://www.mediawiki.org/wiki/Extension:VisualEditor for MediaWiki. A pre-requisite is to install Parsoid service. The instructions for Parsoid ...
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1answer
2k views

nginx 403 Forbidden on CentOS (Vagrant)

What I have checked so far: Logs - they are empty, booted a new VM. Permissions: $ namei -l /var/www/awesome/ f: /var/www/awesome/ dr-xr-xr-x root root / drwxr-xr-x root ...
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1answer
121 views

Release control from init.d script centos

I am using logstash-forwarder and starting it inside its init script with the command: /opt/logstash-forwarder/bin/logstash-forwarder -config=/etc/logstash-forwarder -spool-size 100 This command ...
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1answer
377 views

Centos How to give permission to view folder ?

I push all the local files to Google Compute Engine using gcloud compute copy-files then login to VM using gcloud compute --project and view the uploaded file using ls command it's there .. No ...
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3answers
71 views

using a local version of vim instead of system on CentOS

My school runs centos and a dated version of vim. i want to use a new version of vim so I can have access to stuff I otherwise wouldnt. I built and configured a 7.4.300 version of vim with python, lua ...
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1answer
1k views

CPanel is warning about inconsistent RPMs for an old MySQL installation — how do I fix this?

I used the CPanel WHM interface to move MySQL from v5.0 to 5.6 earlier this week. Last night I got an email from my system that claims there are now problems with older MySQL RPMs. The email said: ...
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1answer
513 views

VMWare Fusion samba share very slow in a CentOS on a Yosemite host

I bought a new iMac, installed the latest version of VMWare, copied over all my data, including a CentOS 6.5 vm, and when I connect to it via samba, it's absolutely insanely slow. I mean like 20-60 ...
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2k views

CentOS 7 on VirtualBox Using 100% CPU

I have CentOS 7 installed as a guest in a VirtualBox 4.3.18 virtual machine, with the latest guest additions installed too. The host operating system is OS X Yosemite running on my 2014 MacBook Pro ...
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1answer
298 views

rpm signing error rpmMkTemp failed

I'm running into this error when signing an rpm file. I've not got a whole lot to go on as you can see, and google seems to have come up empty. I'm stumped ! Does anyone know what causes it ? I'm ...
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1answer
541 views

How to install pktstat on centos7?

I am trying to install a package called netstat but I can't, I tried downloading and installing rpm file, but it was no use I tried making repos but I don't know if I am doing it the right way. Any ...
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2answers
327 views

Restarting process in CentOS if server restarts

I have a VPS with some Java applications (made with "Play Framework") running on ports 9000, 9001, 9002 and 9003. VPS Provider (iPage) happens to reboot servers unexpectedly from time to time, leaving ...
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1k views

CentOS 7 can't get IPv4 address from DHCP server

I have classroom full of computer running CentOS 7 and only one computer can't get IPv4 address from DHCP server during boot, because NIC is not yet up, when dhcp client tries to get IPv4 address from ...
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0answers
106 views

save alsamixer input source centos 6

I am not able to save the input source of my alsamixer. Every time I reboot the system the input source is set back to front mic. I want it to stay as rear mic. I tried alsactl store I disabled ...
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1answer
332 views

echo “something” > file not working when sh script is being executed by remote PHP server

I've got a web-server with my hardcoded webpanel for Source server management and I've got my VPS on CentOS which doesn't really want to execute sh script when asked from remote server. Web-server ...
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1answer
6k views

Launcher missing in CentOS 7 Gnome Desktop

I installed Cent OS 7 in VMware Workstation by selecting Gnome Desktop option. I don't see the "Create Launcher" and all other options which I used to get in Cent OS 6.5 Did I install incorrect ...
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978 views

quotas on Cent OS 7

I have been trying to set up quotas on Cent OS 7 I have followed the instructions here https://www.centos.org/docs/5/html/Deployment_Guide-en-US/ch-disk-quotas.html#s1-disk-quotas-configuring but ...
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1answer
940 views

Registration with the server failed while configuring Amabri on CentoS 7

I am working on CentOs 7 and I have built ambari server from source by cahanging all python 2.6 yo 2.7 I could built them sucessfully except shell. When I am trying to configure server at step 3. ...
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372 views

CentOS 7 and X11R6 Installation

OK so I know just enough about Linux to make me dangerous. As exemplified here: I need CentOS 7 for some newer tools I use, but I also require the use of some older tools. These older tools need ...
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1answer
819 views

Can't receive mail, but can send mail? Centos 6 Postfix/Dovecot

I followed this tutorial to setup my webmail on centos 6: https://www.rosehosting.com/blog/mailserver-with-virtual-users-and-domains-using-postfix-and-dovecot-on-a-centos-6-vps/ Everything is setup ...
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1answer
511 views

Nginx slow downloads even with low disk io

I run a small video streaming website and i've been noticing some problems with videos on my site. I have multiple 1gbit servers and the servers are only going at 1/4 port speed. When I try to load ...
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2answers
2k views

Update-rc.d equivalent on CentOS

I'm trying to get rid of a nasty rootkit on a centOS machine, and I need to remove the starttup scripts from various rcX.d files : The command I'm looking for is an equivalent of the debian: ...
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1answer
148 views

Why does ssh/sshd on server try to access /home/<user>/.ssh after I moved my users home directory?

I moved my users home directory with usermod -m -d /path/to/new/home/username which seems to have worked fine. However, in my [moved] home directory I have the ".ssh" folder that is set up to allow ...
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1answer
448 views

How to create/edit files for a nologin user in RHEL/CentOS?

I have a user defined like so: sudo useradd -m -s /sbin/nologin foo It is not meant to be logged into but it is meant to serve a web application. However, if I try to do anything inside the ...
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1answer
990 views

How to format a vps.

I have a VPS bought from digital ocean, and I would like to have it formatted to its default state. However, Digital Ocean provides the option to only "destory" the VPS. Meaning, I would even loos the ...
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1answer
670 views

Unable to Create Files In Directory

There are lot of these kinds of questions on superuser, so I'll try and keep this quick by telling you what it's not: There is no application involved here. Just a user and a filesystem. I can login ...
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1answer
485 views

bash create command not found on CentOS 6.5

I am not able to create a database. I get a bash create command not found error on entering fir example: create database rattic; please help CentOS version 6.5
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1answer
22 views

How do i find where my apache2 is installed in my centos server?

What methods can I use to find where my apache2 is installed on my centos server? btw, i have cpanel installed. I want to edit my sites-available entries and point one of my domains to another ...
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2answers
3k views

Can't find denyhosts in epel 5,6,7 on CentOS 7 x64

So I wish to install denyhosts, installed and enabled the epel repository, but yum install denyhosts still can't find it. I have to notice that I managed to do it on CentOS 6.4 the same easy way, but ...
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1answer
106 views

CentOS : Removed /root

I have been doing experiments with CentOS and now I am in a situation. I have added an user by mentioning his home directory as /root and then I did userdel -rf <username> So its does the ...
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505 views

CentOS 6.3 and GNOME 3 (gnome-shell) installation from repository

Is there any possibility to install GNOME 3 (gnome-shell) from repository on CentOS 6.3, e.g. does some extra repository with GNOME 3 exist? I've read the thread about installing GNOME 3 on CentOS ...
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2answers
669 views

Add a file to /etc/yum.repos.d to install Oracle JDK 1.6.0-45 from yum?

I have a fresh RedHat 6.5 virtual machine on Amazon Web Services (EC2), its repos look like this currently: [root@ip-172-31-11-112 tmp]# ls -1 /etc/yum.repos.d/ redhat-rhui-client-config.repo ...
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240 views

What's the official way of programmatically changing the GDM login background?

I want to change the background of the GDM login screen on CentOS 6.5 and 7 to bring it in line with other branded systems, and so I have an RPM that delivers a background image into ...
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1answer
364 views

CentOS Ruby Install - Open SSL Issue

Attempting to install ruby 2.1.2 on a centos 7 box, but running into a dependency issue with openssl ~ % ruby-install ruby ...blah blah blah... ---> Package openssl-devel.x86_64 1:1.0.1e-34.el7 ...
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2answers
315 views

What does it mean to “do an updatedb” on Linux CentOS

It says: And then do an updatedb and locate php.spec. at http://www.howtoforge.com/installing_php_mssql_centos5.0 But what does it actually mean to "do an updatedb"?
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1answer
4k views

gcc error Python.h: No such file or directory

I have python-dev (or, as I'm on Centos, python-devel) already installed. sudo yum install mysql mysql-devel mysql-libs sudo yum install python-devel sudo yum install MySQL-python How come this ...
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1answer
797 views

Unable to read package metadata on Centos 6 PXE install

A Centos6 pxe install is not running correctly due to error: Unable to read package metadata. Cannot retrieve repository metadata (repomd.xml) for repository: Centos6-os. However from examining the ...
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2answers
437 views

How many drives do I have?

This is the first time I ordered a dedicated server with 3 HDDs and I am quite confused. My limited knowledge tells me that /dev/sda /dev/sdb /dev/sdc are the 3 drives that I actually have. But, ...
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1answer
6k views

With Centos 7 as a Virtualbox guest on a Mac Host, how can I change the screen resolution of the console / command line?

I am using the minimum install of CentOS 7 with command line access only (no graphic support installed). After spending hours reading online about editing grub files, installing guest additions, and ...
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170 views

Ping “requested timed out” when pinging one box to other in hypervisior internal network

I am running a windows 7 box and centos box on hypervisior connected to a hyperV switch with internal network configuration. The subnet for them is 192.168.0.0/24 . The windows 7 has another nic ...
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1answer
80 views

Replace local host file modification with remote. Proxy server or something else?

I need to find a solution for a problem described below (both servers running CentOS 6) My goal is to have visible website to the public where a client will type own domain name mydomain.com and then ...
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2answers
8k views

centos 7: control idle (screen blanking) time?

OS: CENTOS 7 / Gnome 3 GUI How do I the time that must elapse until the OS thinks that the computer is idle and blanks out the screen? I am aware of the new Settings | Privacy | Screen Lock feature, ...
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1answer
5k views

kernel source error on dahdi installation in centos

Trying to install dahdi from the link. I have downloaded package for dahdi. But on doing cd /usr/src/dahdi-linux-complete* make && make install && make config My terminal shows ...
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11k views

CentOS 7 DVD ISO vs Everything ISO different [duplicate]

What is different between CentOS 7 DVD ISO and Everything ISO in http://centos.org/download/ ? CentOS 7 DVD ISO 3.86 GB Everything ISO 6.58 GB
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1answer
2k views

Add windows partition to grub2 boot loader in centos 7

I had windows 7 installed on my laptop. Then I installed centos7. Installation completed successfully, but when I reboot I can see only centos and centos recovery. I did not see windows partition. ...
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1answer
220 views

Router cannot separate ip addresses on the same NIC (Vmware)

Here is the scenario of my problem. My network topology: I have an ISP Router Technicolor TG797n v3 and i have a wireless access point set to be a client mode and connected to my PC via Ethernet so ...
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1answer
575 views

GRUB 1.99 CentOS 7

I just added CentOS 7 to an existing Ubuntu system (using GRUB 1.99). When I do a grub-mkconfig -o /boot/grub/grub.cfg, it detects the CentOS, and adds two entries (one looks like normal, one like ...
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1answer
308 views

VirtualBox “Bridged Adapter” network doesn't show up in VM

ong story short, I'm trying to re-route information from an Android tablet into a CentOS VM on my Windows 7 host. I've set my Virtual Box manager to have two "Network" adapters (in Settings): ...
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1answer
131 views

I'm having an issue with all postfix mail being rejected with “relay access denied” - Centos 6.5, postfix 2.6.6

If I use smtpd_recipient_restrictions, everything gets rejected with "relay access denied". If I use smtpd_relay_restrictions, everything gets through and ignores the whitelist. Not sure what's up; ...
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1answer
456 views

Install tuleap on amazon ec2 linux AMI

I'd like to know if it's possible to install tuleap on amazon ec2 linux ami. I searched the net unsuccessfully and when I try to install tuleap with yum, I get conflict errors (with httpd24, ...
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149 views

If my firewall is switched off,what else could be blocking access to mysql?

I want to have remote access to my mysql server but when i telnet my server from my computer i get this C:\Users\USER>telnet 197.000.0.00 3306 Connecting To 197.000.0.00...Could not open ...