New Denial of Service Attack on Panix

From: "Forrest W. Christian" <>

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