If you have any experience with the Linux command line, you’ve probably used a pipe to solve tasks by combining simple ...

Sudo lets you run any terminal command as another user — hence "substitute user" — but the default and most common use for it ...

Abstract: I welcome you to the fourth issue of the IEEE Communications Surveys and Tutorials in 2021. This issue includes 23 papers covering different aspects of communication networks. In particular, ...

Cron persistence is a common Linux malware technique. Learn how it works, how to detect it, and how to remove malicious cron ...

Duo Unix includes a PAM module or alternatively a stand alone executable that can be used to protect programs such as SSH or Sudo. This repository is meant to be used for development or cutting edge ...

Logs, databases, and caches grow under /var. Learn why Linux admins monitor the /var directory to prevent disk issues and service failures.

Kali Linux has released version 2025.4, its final update of the year, introducing three new tools, desktop environment improvements, and enhanced Wayland support.

GrepFunc provide a single function, grep, which imitates Unix's grep functionality, but operate on lists and variables instead of files. The function accept a single string, an iterable, or an opened ...