Hardening a Self-Hosted Server with Tailscale and Vaultwarden After a VPS Compromise

How I Hardened My Self-Hosted Server After a VPS Got Compromised (Tailscale + Vaultwarden Setup) TL;DR My VPS got owned. Unknown process, outbound traffic spike, the works. Root cause: Vaultwarden exposed on a public port with weak firewall rules. F...