nanog mailing list archives

Re: SYN floods continueg


From: Avi Freedman <freedman () netaxs com>
Date: Wed, 11 Sep 1996 16:48:43 -0400 (EDT)

On Wed, 11 Sep 1996, Avi Freedman wrote:
and another provider in Philly was attacked for 4-6 hours on news ports
(pretty ineffective). 

Hi.  Why was this ineffective? 

Thanks,
Chris Caputo
President, Altopia Corporation

Because most providers only let their customers connect to their nnrp/nntp
servers.  And you can easily build a filter which allows just port-119
connects from your news peers and denies all others...

Of course, that wouldn't work as well for alt.net (you guys) if you're
still selling off-site nnrp access to hundreds of people.

Avi

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