Technical Notes

A small collection of notes about Linux, networking, automation, and infrastructure.

Recent notes

Linux server maintenance

Keeping small Linux servers reliable mostly comes down to regular security updates, sensible monitoring, backups, and minimizing unnecessary services.

Network troubleshooting

Tools such as ping, traceroute, dig, ss, tcpdump, and mtr are useful for separating DNS, routing, firewall, and application problems.

Containers

Containers are useful for isolating application dependencies while keeping the underlying host relatively simple.