SysAdmin

A chroot jail is created when a system's root folder is changed to once chosen by a user.
This tutorial covers possible uses for a chroot jail and how you can set one up.

MySQL stored procedures group multiple tasks into one and save the task on the server for future use. Stored procedures simplify database management and reduce network traffic. Learn how to use stored procedures in this tutorial.

Java is a programming language used to develop a wide variety of applications. It is supported by virtually all operating systems, including Fedora.
In this step-by-step tutorial, we take you through the process of installing OpenJDK and Oracle's Java SE on Fedora.

Raspberry Pi can be used as an affordable FTP server. Learn how to set up the server and test your connection after establishing it.

Puppet is an open-source administrative engine that lets you perform remote admin tasks in a network through a single master node.
This tutorial will show you how to install Puppet Agent on macOS.

RPKI makes BGP more secure and reliable. Learn about the flaws of BGP, what RPKI is and how it works.

Learn how to improve your network speed by setting up a Raspberry Pi as a DNS server in this step-by-step guide.

Helm is a package manager that features all the necessary commands for easy app management in a Kubernetes cluster. This tutorial covers all the important Helm operations and provides examples to help you learn its syntax and features.

The Telnet client is not the best cybersecurity practice, however it is very useful for port troubleshooting. Learn how to turn on the Telnet client feature and check for open ports on Windows.

The vmstat command is a Linux monitoring utility used to see various system statistics and to diagnose performance bottleneck issues. Learn how to use the command in this simple tutorial with examples for each available option.