Terminal
2025
Linux Iptables quick reference
1197 words·6 mins
Linux
Terminal
Shell
Firewall
Reference
Network
Networking
iptables in 5 Minutes: a quick cheat-sheet for quick rule edits, safe testing, and making changes stick, without tripping over firewalld, UFW, or nftables.
Bash History Expansion and Prompt Magic
471 words·3 mins
Linux
Scripting
Programming
Terminal
Bash
Shell
Interesting and useful use cases of !, #, and ? expansions in Bash