Advanced & Deep Dives¶
Topics for when the basics aren't enough — the tools and techniques you grow into as you run more (and more important) systems.
- Network Diagnostics Deep-Dive —
ss,traceroute,mtr, andtcpdump: see exactly what's on the wire and where a connection breaks. - Analyzing Log Files — read and mine the real
logs (nginx, PHP-FPM,
messages/syslog,secure/auth) withgrep/awk, rank offenders, and summarise web traffic with GoAccess. - Infrastructure as Code: Terraform Basics — declare infrastructure as code with Terraform (and OpenTofu), with a runnable example.
Prerequisites
These build on the earlier stages — especially Networking, Logs & journald, and Automation. Comfortable there? Dive in.