The Internet Engineering Taskforce (IETF) is responsible for
producing and maintaining the protocols that keep the Internet
running. The protocols are documented in ``Request For
Comments'', available on
sunsite
or the IETF. In
particular, the
IP
and
TCP
are of
great importance.
If you're looking for a port number to use in your application,
IANA
keeps the
registry of well-known numbers, such as port
numbers.
