Public keys are not enough for SSH security

This post introduces the integration of short-lived certificates for SSH authentication within Cloudflare Access. It details how Cloudflare Access, Argo Tunnel, and Workers are used together to replace static SSH keys and traditional network perimeter security. The solution involves the `cloudflared` CLI tool on both client and server sides, generating JWTs upon SSO authentication, which are then used to obtain ephemeral certificates from a Cloudflare signing endpoint. These certificates authenticate the user to the target server, enabling zero-trust SSH access.