Messages in this thread | | | Subject | Re: question about linux tcp request queue handling | From | Doug McNaught <> | Date | 07 Jul 2003 18:25:17 -0400 |
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Andi Kleen <ak@suse.de> writes:
> "Paul Albrecht" <palbrecht@qwest.net> writes: > > > This statement is inconsistent with the description of this scenario in > > Steven's TCP/IP Illustrated. Specifically, continuing the handshake in the > > TCP layer, i.e., sending a syn/ack and moving to the syn_recd state, is > > incorrect if the limit of the server's socket backlog would be exceeded. > > How do you account for this discrepancy between linux and other > > berkeley-derived implementations? > > The 4.4BSD-Lite code described in Stevens is long outdated.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".
And furthermore, IIRC, the current Linux networking code is not Berkeley-derived, though an earlier version was.
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