radstatus asks the RADIUS servers that are specified in the
radiusclient.conf file for their status. If command line arguments
are supplied then only these servers are asked. Just like in
radiusclient.conf, you can supply a port number after the hostname
seperated by colon. You can also use the symbolic values "auth" and
"acct" in which case the port number is looked up in /etc/services
or if not found in there a compiled in default is used. This status
query only works with the Merit radiusd.