How to recover from a full outage

1. ping 157.173.117.104 — if dead, use provider console.
2. journalctl -b -p err --no-pager | tail -100
3. Disk: df -h (watch / — often ~half full historically). Clean Docker/logs carefully.
4. systemctl --failed → restart critical units (nginx, mariadb, postfix, dovecot, slapd).
5. yunohost diagnosis run
6. Restore if needed: yunohost backup list → yunohost backup restore <name>

Verify: curl -sI https://neuralmeadow.xyz | head -5