Linux

When you’ve been working with Linux for a while, systemd isn’t exactly unfamiliar. I’ve used systemctl plenty of times. Start a service, stop a service, restart it, check its status, enable it at boot. Nothing particularly mysterious about any of that. But recently I found myself having to create a systemd service file from scratch for one of my own projects, PulsePoint. That’s when I realised something slightly embarrassing. I knew how to use systemd, but I’d never really stopped to look at what was inside one of those .service files. ...

Firejail’s firecfg sandboxed my whole desktop, screenshots included. How to uninstall it cleanly on Arch-based Linux without leaving broken symlinks behind.

Can’t install traceroute on a locked-down Linux system? Build your own in Bash with ping and increasing TTL values, then test, troubleshoot and extend it.

Your disk is full and you need to know why. Find the biggest files on any Linux box using du and find, sidestep the permission-denied noise, and wrap the whole thing in a one-word alias.