Self-Hosting a Password Manager the Hard Way: Vaultwarden, Caddy, and Three Firewalls Fighting
Building a self-hosted password vault with a genuinely trusted TLS certificate and zero inbound ports open to the internet — and the four-layer debugging session that stood between me and a working container. Stack: Debian 13 · Docker · Caddy (custom build) · Vaultwarden · pfSense · WireGuard · DuckDNS 1. Purpose Self-hosted services are easy to do badly. It’s trivial to run a container, forward a port, click through a certificate warning, and call it done — and end up with something less secure than the cloud service you replaced. ...