set-expire (e) [EXPIRE] set host key expiration
add-hostname (n+) NAME[:PORT] add hostname user ID to host key
revoke-hostname (n-) NAME[:PORT] revoke hostname user ID
- add-revoker (r+) [KEYID|FILE] add a revoker to the host key
+ add-revoker (r+) KEYID|FILE add a revoker to the host key
revoke-key generate and/or publish revocation
certificate for host key