Kerberos
ssh-server
modification /etc/ssh/sshd_config
# GSSAPI options GSSAPIAuthentication yes GSSAPICleanupCredentials yes GSSAPIKeyExchange yes GSSAPIStoreCredentialsOnRekey yes
# GSSAPI options GSSAPIAuthentication yes GSSAPICleanupCredentials yes GSSAPIKeyExchange yes GSSAPIStoreCredentialsOnRekey yes