thami@Xerox:~$ sudo /etc/init.d/mythtv-backend start Starting MythTV server: mythbackendSession management error: Authentication Rejected, reason : None of the authentication protocols specified are supported and host-based authentication failed . thami@Xerox:~$ sudo /etc/init.d/mythtv-backend restart Restarting MythTV server: mythbackendNo /usr/bin/mythbackend found running; none killed. . Session management error: Authentication Rejected, reason : None of the authentication protocols specified are supported and host-based authentication failed . thami@Xerox:~$ sudo /etc/init.d/mythtv-backend stop Stopping MythTV server: mythbackend No /usr/bin/mythbackend found running; none killed. . thami@Xerox:~$