Re: More problems with NOVM version

From: Martin Ibert <>
Date: Fri, 24 Jan 1997 10:29:50 +0100

Ken Hardy wrote:
> So the SYN-ACK packets were never
> received by the client, so the client never sent the ACK packet. I
> conjectured that the server was filling up with half-open connections
> and could not accept any more until they timed out.

Great. A classic "SYN flood" attack, but this time by accident rather
than by maliciuos design.

> Could this be the per-process limit of 5 (on sunos) of pending
> connections in the listen(2) queue?

Sure. Have look at listen(2).

Dipl.-Inform. Martin Ibert, BB-DATA GmbH, phone: +49-30-245-56582
Brunnenstraße 111, D-13355 Berlin, Germany, fax: +49-30-245-56577
Received on Fri Jan 24 1997 - 01:45:32 MST

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