New YAML config option: accept_any_key: true
- Accepts any public key without verification against authorized_keys
- Still passes the client's key fingerprint in the upstream username
- Format: fp:FINGERPRINT.originaluser
- Useful for proxying to apps that identify users by SSH key fingerprint
When using public key auth, include the client's key fingerprint
in the upstream username with format: fp:FINGERPRINT.originaluser
This allows upstream servers (like maldoror) to identify users
by their original SSH key even when sshpiper uses its own key
for upstream authentication.