SysAdmin

The ss (socket statistics) tool is used for displaying various network and socket statistics. It is a faster version of the neststat tool. This article gives an in-depth overview of how to use it with various examples.

By default in Linux, a command received through standard input writes directly to standard output. The tee command changes that behavior by allowing another command to use a file as the output. This tutorial lists ways in which you can use the tee command.

RHEL is now free for small production workloads, up to 16 systems. Red Hat announced their newly modified no-cost RHEL program as a response to the growing dissatisfaction due to the switch to CentOS Stream.

Read about the most commonly used netstat commands for Linux and see examples of their usage.

Find a list of all MySQL date functions in this helpful article. Learn what each function does and how to use it through the practical examples.

Passwords are the most important feature of security. This article explains and shows examples of how to use the passwd command in Linux to manage passwords for accounts.

Windows uses environment variables to set up and run processes. This tutorial goes over different ways to set, list, and unset environment variables in Windows.

The software in Linux is traditionally organized in repositories that contain applications and all the dependencies necessary to run them. However, there are also some alternate ways of software deployment. This article compares the Snap packaging system and the APT package manager.

This article gives a step-by-step guide on how to install the VirtualBox extension pack using a GUI or a CLI in Windows, macOS or Linux. Get insight into some of its features.

Need a reference sheet for all the important MySQL commands? Check out this MySQL Commands article which includes a downloadable MySQL cheat sheet in PDF format.