fieldnotes
The notebook

Useful things,
written down.

Notes on networks, the web, and the quiet work of keeping systems understandable.

All notes

003 entries
01
Networks

Make a network test answer one question

A practical way to separate reachability, latency, and throughput before changing a system.

10 NOV 2026
2 MIN READ
02
Web

A small checklist for HTTPS

Check the name, the trust chain, and the negotiated protocol as separate parts of one connection.

10 NOV 2026
2 MIN READ
03
Operations

Keep the useful parts of a log

A few deliberate fields make troubleshooting easier without turning logs into a second database.

10 NOV 2026
2 MIN READ