The Git version control system is a powerful tool for managing large and small software development projects. We'll show you how to get started.

You might think Docker is a tool reserved for gnarly sys admins, useful only to service companies that run complicated SaaS applications, but that is not true: Docker is useful for everybody.

Data compression costs virtually no computing power today. Why not save some space by putting data compression techniques to work on RAM and cache memory?

In an effort to meet modern computing needs, zstd offers a greater degree of compression at a faster compression rate, with unique options to enhance performance.

Systemd units use files to control resources that Systemd manages.

You can do more with the Bash history command than just using the arrow keys. We show you how to use this command-line tool more efficiently.

Systemd can start timers that automatically perform tasks at specified times. The configuration files are known as timer units.

The CYA script helps you back up system files, which you can then restore quickly in case of an emergency.

Graphical frontends make it easier to take full advantage of the Systemd process manager. We examine some leading tools for the KDE environment.

The pleasure of owning a nice domain like sensorenresidenz.de is clouded by the requirement of an X.509 certificate for every subdomain that the admin wants or has. Columnist Charly can help boost the webmaster's spirits.