full-disclosure - Blocking Music Sharing.

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Message-ID: <3F65FFE9.5020805@onryou.com>
From: lists at onryou.com (Cael Abal)
Subject: Blocking Music Sharing.

> Due to the legal issues, I am trying to block access to sites like Kazaa
> and Limewire in the office.  If I am not mistaken, these networks can
> use different ports each time, so there is no way to block it at the
> firewall.  Is this right?  And if so, what is the best way to block
> access to these types of sites?

Hi Mark,

I'm of the opinion that most legal issues shouldn't be dealt with at the 
technical level, but on the policy level.  Some folks disagree, though.

Consider these:

- traditional copyright infringement (photocopier or http/ftp)
- inappropriate material (porn via http)
- offensive jokes (via e-mail or water cooler chat)

Instead of spending significant time and effort crafting snort rules 
(and recrafting them each time a new file-sharing app surfaces) why not 
lump file-sharing apps in with the above, and hand the entire thing off 
to your legal department?

Don't have a legal department?  There are plenty of Acceptable Use 
Policy templates available online.

take care,

Cael