Slow Build
Notes on servers, databases and small tools.
Rotating logs without losing lines
30 Sep 2026Why copytruncate is a fallback and what to use instead.
Finding what fills the disk
23 Sep 2026Three commands that answer "where did my space go" in under a minute.
More PostgreSQL connections are rarely the fix
11 Sep 2026What to check before raising max_connections.
Checking certificate expiry from the shell
03 Sep 2026A one-line check that works for any TLS service.