ssh-keyscan + known_hosts + StrictHostKeyChecking: doing it right in a personal-fleet shell script

Brass padlock and matching key on a granite surface — photo by theshantanukr on Pexels

You wrote a deploy script. It SSHes into 12 servers, runs an update, comes home. The first time you run it on a fresh laptop, every server prompts: The authenticity of host ‘203.0.113.x’ can’t be established. Continue connecting (yes/no/[fingerprint])?. …

Self-hosting Vaultwarden on a small VPS: docker-compose, Caddy reverse proxy, and migrating from a paid Bitwarden plan

You’ve been paying $40/year for a Bitwarden family plan, or $36/year for an individual one. The product is excellent — there’s nothing wrong with what they’ve built. But you also have a $5/month VPS that’s already running a couple of …