[Gllug] Basic Firewall Policy

[Andrew Halliwell]

And verily, didst Rev Simon Rumble announce to the hordes:
> 
> Using one of the many available firewalling scripts should do the
> trick.  The basic principle you want is to close off EVERY port you
> don't have a really good reason for keeping open.
> 
> Then test externally.

Aye, I do that, everything but ports 10,000 and 20,000 and ident closed, and
no services running on those.

I just use them for the occasional game of crack-attack, or for /dcc and
ident on irc.

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