New Denial of Service Attack on Panix

Tue Sep 17 23:32:46 UTC 1996

>From: "Forrest W. Christian" <forrestc at iMach.com>
>
>  5 minute SYNS: 123423   5 minute SYN-ACKS: 50000
>
>Then, if the ratio got too high, it can start yelping about "Potential SYN 
>D-O-S Atttack in progress on Interface Serial 1"

    I suggest to check not only ratio (assymetric routing !),
but high number of SYNs to single host.

				- Leonid Yegoshin, LY22