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Best CentOS Tutorials

Our CentOS Tutorials let you expand your Linux knowledge. Our step by step CentOS tutorials are easy to understand and are backed up by true Linux professionals. Don’t waste time researching, we have the most popular CentOS Tutorials with real life examples, tips and tricks so you can become a true CentOS master.

CentOS 7 vs CentOS 6 – List of Important Changes

CentOS 7 introduces many important changes from previous versions like CentOS 5.x or CentOS 6.x. That’s why today we are going to show you CentOS 7 vs CentOS 6 important changes At my web hosting company we always delay the usage of new Linux distributions, because the on the first months or years of a Linux distro are…

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How to Install MySQL 5.6 on CentOS 6.x

Today I had to upgrade my MySQL server from MySQL 5.5 to MySQL 5.6. This was the procedure I used to update, but you can also use it to install from scratch if you need. Let’s begin with this guide to show you how to install MySQL 5.6 on CentOS 6. Requirements Plain CentOS 6 box (without cPanel) Fresh…

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CentOS 7 Restart Network Command

CentOS 7 introduces many changes in the way users handle and manage general Linux services. The same happened with Red Hat Enterprise Linux 7. And the big question here is: How to restart network service on CentOS? And how can I stop and start networking on CentOS or RHEL systems? Today we will explore CentOS 7 Restart Network…

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Linux error: bash: rsync: command not found

Today I came across a weird problem that I’ve never seen before. While trying to migrate information from one server to another using rsync I get this error: bash: rsync: command not found This was the full output: [root@server.nixcp.com:~]rsync -avpr -e ‘ssh -p 22’ root@111.111.111.111:/home/company/public_html/* /home/company/public_html/ bash: rsync: command not found rsync: connection unexpectedly closed (0 bytes received…

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Fatal error: Call to undefined function mb_substr() Error

While working on a PHP based website, I found this error: Fatal error: Call to undefined function mb_substr(). This error is caused because mbstring PHP module is not loaded at the PHP general configuration files. Let’s see how to fix it. What causes Fatal error: Call to undefined function mb_substr() Error ? This error happens beacuse mbstring module…

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How can I automatically run scripts at boot time in Centos 7?

One of the big changes CentOS introduced on version 7 was the lack of native execution for custom scripts to boot from /etc/rc.d/rc.local file. /etc/rc.d/rc.local was one of the most classic ways to add custom scripts to automatically boot after all the init.d scripts were started on old CentOS 5 and CentOS 6 versions. However, many things changed…

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How can I Convert CentOS to CloudLinux OS?

Converting existing CentOS or cPanel Servers to CloudLinux isn’t hard at all and can be done within a few minutes. Today we will show you how to convert centos to cloudlinux in a few easy steps. Most cPanel installations are done using CentOS Linux, and switching from CentOS 5.x / 6.x / 7.x to CloudLinux can be done with…

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