GNU networking utilities
Inetd program should be run at boot time by /etc/rc (see rc(8)).
It then listens for connections on certain internet sockets. When a
connection is found on one of its sockets, it decides what service the socket
corresponds to, and invokes a program to service the request. The server
program is invoked with the service socket as its standard input, output
and error descriptors. After the program is finished, inetd continues to
listen on the socket (except in some cases which will be described below).
Essentially, inetd allows running one daemon to invoke several others,
reducing load on the system.