Resolution: For conn_names and server_names the keyword '_node' expands to the value returned by the function TutGetNodeName() (which calls the OS gethostname). Then, the name, if not an ip address, is resolved to an ip address by using the call gethostbyname(). RTserver will then retain this value. In the event of network failure RTserver will not repeat this discovery. RTserver must be restarted to resolve _node with gethostbyname()