Linux

The journalctl commands worth knowing: filter by unit, time and priority, follow logs live, and why your logs vanish after a reboot.

Thirty find command examples for Linux: search by name, size, time and permissions, run actions with exec, and delete files without wrecking things.

Fifty Linux commands grouped by task, with real terminal output, the ten to learn first, and the ones that can ruin your day.

How to install Java 25 on Ubuntu, Debian, RHEL and Fedora, pick the right JDK build, set JAVA_HOME properly, and switch between installed versions.

How to use setfacl and getfacl for Linux ACLs, including the mask, default ACLs on directories, and why chmod can silently revoke a grant.

Setting up a modern Next.js app with server-side rendering, authentication, and database integration is not easy. It takes a lot of work to get all the parts working together. This guide shows you how to set up a Linux VPS…

Look, I’ll be honest with you – deploying changes into production used to make me nervous. If you make one mistake, your users get error pages, your boss gets angry emails, and you have to quickly undo changes at 2…

Systemd is now the default init system and service manager for most modern Linux distributions. If you want to be a good Linux system administrator, you need to know how to use systemd. This is true whether you’re in charge…

Deploying a full-stack application directly on a Linux server without the use of containers was one of the most instructive experiences I have encountered recently. Certainly, Docker is highly popular at present, but there is a certain satisfaction in maintaining…

If you work on Windows but everything you actually deploy to is Linux, WSL solves a problem you’ve probably been working around for years. No dual boot, no VM sitting there eating 4GB of RAM, no SSH into a box…