Date: Tue, 22 Mar 2005 14:18:34 +0100 From: Robert Gogolok <robertgogolok@web.de> To: freebsd-net@freebsd.org Subject: FIN_WAIT_2 Message-ID: <42401B2A.70308@web.de>
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Hi! I have many (about 100) connections in FIN_WAIT_2 state on my webserver (FreeBSD 5.3, apache 2.5.53). I discussed a few questions already on the freebsd-questions list, see http://lists.freebsd.org/pipermail/freebsd-questions/2005-March/081580.html Some connections doesn't seem to go away (they remain in FIN_WAIT_2 state) after 2 hours, what is the exact timeout? I can see every 5 minutes ACK packages sent from that FIN_WAIT_2 connections. Is these because of tcp keep alive (or which RFC specifies that behaviour)? tcpdump output: 16:04:12.987415 IP HTTP_SERVER.http > HTTP_CLIENT.10228: . ack 1760359226 win 0 16:04:12.987678 IP HTTP_SERVER.http > HTTP_CLIENT.10228: . ack 1760359226 win 32900 16:08:57.944008 IP HTTP_SERVER.http > HTTP_CLIENT.10228: . ack 1760359226 win 0 16:08:57.944300 IP HTTP_SERVER.http > HTTP_CLIENT.10228: . ack 1760359226 win 32900 ... Greetings, Robert
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