Category Archives: Guides
Here at RackNerd, we're on a mission to introduce infrastructure stability on a global scale - one server at a time. Learn more about our story and why you should choose RackNerd for your infrastructure as a service (IaaS) needs!



Docker vs. Kubernetes – What’s the Difference?

Gone are the days, where large applications built on Monolithic Architecture are dependent on each service for full functionality of an application, or to service the end user. Well, you might have a question, what does monolithic architecture have to do with Docker or Kubernetes? Nowadays, where the whole application built on monolithic architecture is […]

Webmin vs. Virtualmin

Webmin and Virtualmin have been around for a long time, and they are known as one of the oldest free control panel’s that still exist today. You may be wondering, what is the difference between Webmin vs. Virtualmin. In today’s post we are going to see some unique differences between the Webmin and Virtualmin Control […]

AlmaLinux ELevate – How to Upgrade from CentOS 7 to CentOS 8 Stream, CentOS 7 to AlmaLinux, or CentOS 7 to Rocky Linux

Have you ever wanted to upgrade from CentOS 7 to CentOS 8? How about CentOS 7 to AlmaLinux? Or CentOS 7 to Rocky Linux? None of those were possible or seamless before, and usually involved major system administration effort as a reinstall was usually required. That changes starting today. AlmaLinux today announced their latest project: […]

How to Fix “REMOTE HOST IDENTIFICATION HAS CHANGED” Error When SSH’ing from a MacOS Based Computer

Trying to SSH into your server from a MacOS based computer but running into a fingerprint error, such as this? @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY! Someone could be eavesdropping on you right now (man-in-the-middle attack)! It is also possible that a […]

How to Install Clientexec on a VPS — Clientexec Download & Clientexec Installation

In this video, we’re going to go over how to install Clientexec on a VPS. This video assumes you already have a Linux VPS with full root access, running on Debian 10. In this video, we will show you how to go from nothing, to a VPS running with a full working installation of Clientexec. […]

How To Install Clientexec in Under 2 Minutes – Clientexec Installation & Clientexec Demo

In this video tutorial, we will show you how you can install Clientexec via Softaculous. The process from start to finish takes under 2 minutes! All of RackNerd’s shared and reseller hosting plans come standard with Softaculous Script Installer, allowing you to install Clientexec with just a few clicks as we’re about to demonstrate in […]