Notes and files

A quiet host for things I would otherwise lose in shell history: short notes on Linux administration, checklists I re-read too often, and the occasional document. No accounts, no comments, nothing to sign up for.

Manuals

• In-place Ubuntu LTS upgrade on a remote box 2026-11-01 · procedure
• restic backups on a timer, and the restore drill 2026-10-19 · procedure
• Reading SMART before the disk tells you 2026-09-21 · procedure
• journalctl recipes I kept re-deriving 2026-08-30 · reference
• apt holds and pins, and how they rot 2026-07-14 · reference
• SPF, DKIM and DMARC for one small domain 2026-06-27 · procedure

Notes

• systemd timers that quietly stopped firing 2026-10-28 · diagnosis
• PostgreSQL backup checklist 2026-10-11 · checklist
• Triage for a noisy access log 2026-09-30 · diagnosis

Twelve manuals so far — the six most recent above, the rest under docs. Everything is plain static files served by nginx; if something is missing, it is probably gone rather than hidden.