Removed requirement for /proc/net/tcp

Latest commit removes requirement for /proc/net/tcp, a "bug" filed by @cnygaard in @paradoxxxzero repo.

Untested (except minimal testing on linux), but this should add support for both Windows under cygwin and BSD based operating systems.

It also removes the "Server running as <user>" string for additional security, as well as the "Logging in as <user>" portion from the MOTD.