From owner-freebsd-net@FreeBSD.ORG Tue Mar 22 13:18:38 2005 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id F0C0216A4CE for ; Tue, 22 Mar 2005 13:18:38 +0000 (GMT) Received: from uni-sb.de (uni-sb.de [134.96.252.33]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1CFCC43D31 for ; Tue, 22 Mar 2005 13:18:38 +0000 (GMT) (envelope-from robertgogolok@web.de) Received: from cs.uni-sb.de (cs.uni-sb.de [134.96.252.31]) by uni-sb.de (8.13.3/2005020900) with ESMTP id j2MDIaPx023893 for ; Tue, 22 Mar 2005 14:18:36 +0100 (CET) Received: from mail.cs.uni-sb.de (mail.cs.uni-sb.de [134.96.254.200]) by cs.uni-sb.de (8.13.3/2005011400) with ESMTP id j2MDIZD0005180 for ; Tue, 22 Mar 2005 14:18:35 +0100 (CET) Received: from xantippe (xantippe.cs.uni-sb.de [134.96.240.13]) by mail.cs.uni-sb.de (8.13.3/2005020900) with ESMTP id j2MDIYkj017192 for ; Tue, 22 Mar 2005 14:18:34 +0100 (CET) X-Authentication-Warning: mail.cs.uni-sb.de: Host xantippe.cs.uni-sb.de [134.96.240.13] claimed to be xantippe Received: from eugene.cs.uni-sb.de [134.96.240.6] (Debian))id 1DDjHG-0001DX-00 for ; Tue, 22 Mar 2005 14:18:34 +0100 Message-ID: <42401B2A.70308@web.de> Date: Tue, 22 Mar 2005 14:18:34 +0100 From: Robert Gogolok User-Agent: Mozilla Thunderbird 1.0 (X11/20050313) X-Accept-Language: en-us, en MIME-Version: 1.0 To: freebsd-net@freebsd.org X-Enigmail-Version: 0.89.6.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: FIN_WAIT_2 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 22 Mar 2005 13:18:39 -0000 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