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 (o) FINGERPRINT add a revoker to the host key
+ add-revoker (o) [KEYID|FILE] add a revoker to the host key
revoke-key (r) revoke host key
publish-key (p) publish host key to keyserver