Andi Kleen writes:
>
> The 4.4BSD-Lite code described in Stevens is long outdated. All modern
> BSDs (and probably most other Unixes too) do it in a similar way to what
> Nivedita described. The keywords are "syn flood attack" and "DoS".
>
I have attached a copy of tcpdump output for two linux systems connected
over ether replaying the scenario for incoming request queue handling given
in Stevens's TCP/IP Illustrated Volume 1: The Protocols. What I don't
understand about the third handshake is if the server is going to send the
syn/ack in response the client's initial syn then why does server repeatly
ignore the subsequent ack from the client?
trace.txt
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