31 October 2007
(This article has been edited since it’s first publication.)
In Linux, and other UNIX-like systems, you have to be root (have superuser privileges) in order to listen to TCP or UDP ports below 1024 (the well-known ports).
This port 1024 limit is a security measure. But it is based on an obsolete security model and today it only gives a false sense of security and contributes to security holes.
The port 1024 limit forces you to run all network daemons with