netpd is insecure

netpd is inherently insecure, since by design it executes code written by others.
Anyone can upload and run any Pd patch on other people's computers while they are
running netpd and connected to the server. Altough it hasn't been seen in the
wild, there is a lot of harm one could do with a patch.

netpd won't get more secure in the foreseeable future. Any attempt to change that
would result in a false sense of security.

Consider the following advices when running netpd: