Home » CentOS
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.
How to Change Hostname on CentOS Linux
A lot of us have heard or read the word hostname before, but the meaning of this term may not be exactly clear if we are not related to the hosting industry or to the Linux community in some way. We may also hear about it if we are taking part in a web development career. If you…
Read More »Disable Firewalld on CentOS
How can I disable Firewalld on CentOS Linux? That’s is one of the main questions asked on forums and places when you are a beginner working on CentOS systems. The short answer is, you don’t need to disable it, that’s the easy workaround. However, if you don’t have time to play with firewalld and learn how it works,…
Read More »Windows XP can’t connect to Samba on CentOS 7.x
I have a customer that has two servers, one with CentOS 5.x and Samba 3.x, it was able to connect from all kind of Windows computers to the shared directory by Samba. However, on a new CentOS 7.x running Samba 4.x, all machines could connect except the ones using Windows XP, and some Windows Server 2003 clients. The…
Read More »Recursively Optimize PNG Files
Images are often one of the most overlooked things when publishing content inside a website. Editors upload images freely and most of them don’t rely on using the correct image format, or even worse, they don’t bother to optimize the image at all. However, the Linux terminal offers a great way to recursively optimize PNG files. Install OptiPNG and PNGCrush…
Read More »Install / Upgrade to PHP 7.1 on CentOS 7 / RHEL 7 using Remi RPM Repo
Days ago I had to upgrade to PHP 7.1 on the nixcp.com server, it was a major upgrade since I was running PHP 5.6.x. This was on the top of my todo list after I read that PHP 7.1 was 20% faster than PHP 7.0 (and we all know PHP 7.0 is around twice as fast as PHP…
Read More »Let’s Encrypt: The client lacks sufficient authorization :: Invalid response
Recently I started using Let’s Encrypt SSL certificates for my site cPanelTips.com. Let’s face it, Let’s Encrypt has changed the way we install SSL certificates. The old days when you had to fill in your company and personal details, generate the CSR code, and then submit to the SSL registrar, to finally wait for the CRT code ware…
Read More »Install MySQL 5.6 on CentOS 7 / RHEL 7
In this tutorial we will explore a quick and simple way on how to install MySQL 5.6 on CentOS 7 / RHEL 7. Previously we already wrote about how to install MySQL Server 5.6 on CentOS 6 / RHEL 7. CentOS and RHEL 7 comes with MariaDB by default. MariaDB is the database standart daemon used to replace…
Read More »