Given the command
  condor_off hostname2
an error message of the form
  Can't find address for master
appears. Yet, when looking at the host names with
  condor_status -master
the output is of the form

To correct this incomplete host name, add an entry to the configuration file for {DEFAULT_DOMAIN_NAME} that specifies the domain name to be used. For the example given, the configuration entry will be


After adding this configuration file entry, use condor_restart to restart the HTCondor daemons and effect the change.