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

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

With -w, grep will match “error” but skip things like “errors” or “terror.” The difference can be subtle, but when you’re ...

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

A paper on arXiv by researchers at the Icaro Lab in Italy has set off a firestorm of headlines. It begins with a reference to a founding text of Western philoso ...