remote login a la telnet; automatic authentication performed based on priviledged port numbers and distributed data bases which identify "authentication domains"
Transport protocols: tcp, udp
Registered Services
login / tcp — remote login a la telnet; automatic authentication performed based on priviledged port numbers and distributed data bases which identify "authentication domains"
who / udp — maintains data bases showing who's logged in to machines on a local net and the load average of the machine
Assignment from the IANA Service Name and Transport Protocol Port Number Registry.