illegitimate use of low numbered ports.

Edward Vielmetti (
Fri, 13 Aug 1993 02:26:39 -0400

If you are going to use low numbered IP ports (e.g 81, 82, 83) for
HTTP then you should register that usage with the Internet Assigned
Numbers Authority (

You have no way of guaranteeing that these low numbered ports will
not be assigned in the future to some other official network service,
and you will be unhappy when that happens.