I think the key is to allow outbound packets to the Napster servers and
other PCs on the Internet, but not allowing external PCs to establish a
connection to your users' PCs. Find out the ports that a PC running Napster
is listening on, and then block those at the FW. A PIX should do this by
default, unless you specifically added a conduit statement to allow Napster.
The access list on the outside interface of a router with FW FS should not
allow inbound Napster connections. On the Napster client, you'll need to
pick the 'I'm behind a firewall, and can't do anything about it' (or
something like that) option. I'm blocking Napster both ways at work, so I
can't test it for you.
HTH
Chuck Church
CCNP, CCDP, MCNE, MCSE
Sr. Network Engineer
Magnacom Technologies
140 N. Rt. 303
Valley Cottage, NY 10989
845-267-4000 x218
>Hello everyone,
>
>I searched through the archives and found lots of good information on
>blocking but I did not see anything on the possibility of allowing users to
>connect to Napster and download music but NOT be permitted to upload.
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