Hello, We're starting to use FreeIPA in house (which is awesome btw) which means that Kerberos and TLS client certificate authentication is suddenly quite easy. Im looking for a list of common Linux services with data on how one can Authenticate/Authorise for these services. * httpd support TLS client certificate authentication and Kerberos * rabbitmq supports TLS client certificate authentication * dovecot supports Kerberos and ... etc, etc Cheers, Andrew