From owner-freebsd-questions@FreeBSD.ORG Sat Mar 19 23:15:35 2011 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 9A2CC106564A for ; Sat, 19 Mar 2011 23:15:35 +0000 (UTC) (envelope-from LConrad@Go2France.com) Received: from mgw1.MEIway.com (mgw1.meiway.com [81.255.84.75]) by mx1.freebsd.org (Postfix) with ESMTP id 3588F8FC12 for ; Sat, 19 Mar 2011 23:15:34 +0000 (UTC) Received: from VirusGate.MEIway.com (virusgate.meiway.com [81.255.84.76]) by mgw1.MEIway.com (Postfix Relay Hub) with ESMTP id 472B6471851 for ; Sun, 20 Mar 2011 00:15:37 +0100 (CET) Received: from mail.Go2France.com (ms1.meiway.com [81.255.84.73]) by VirusGate.MEIway.com (Postfix) with ESMTP id AE0843865B4 for ; Sun, 20 Mar 2011 00:15:37 +0100 (CET) (envelope-from LConrad@Go2France.com) Received: from W500.Go2France.com [72.48.240.99] by mail.Go2France.com with ESMTP (SMTPD32-7.07) id A912171C009E; Sun, 20 Mar 2011 00:15:30 +0100 X-Mailer: QUALCOMM Windows Eudora Version 7.1.0.9 Date: Sat, 19 Mar 2011 18:15:24 -0500 To: freebsd-questions@freebsd.org From: Len Conrad In-Reply-To: <22687_1300574850_4D853282_22687_4818_1_D9B37353831173459FD AA836D3B43499BD354B91@WADPMBXV0.waddell.com> References: <201103192340697.SM06140@W500.Go2France.com> <22687_1300574850_4D853282_22687_4818_1_D9B37353831173459FDAA836D3B43499BD354B91@WADPMBXV0.waddell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Message-Id: <201103200015588.SM06140@W500.Go2France.com> Subject: Re: tcp/ip failures with fbsd 8.2 386 on ESX 4.1 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 19 Mar 2011 23:15:35 -0000 >Maybe try disabling dns lookups within syslog-ng? > >----- Original Message ----- >From: Len Conrad [mailto:LConrad@Go2France.com] >Sent: Saturday, March 19, 2011 05:40 PM >To: freebsd-questions@freebsd.org >Subject: tcp/ip failures with fbsd 8.2 386 on ESX 4.1 > > >FreeBSD 8.2 32-bit >ESXi 4.1 >em0 driver to the ESXi Intel emulation >syslog-ng 2.0.10 > >em0: flags=8943 metric 0 mtu 1500 > options=9b > ether 00:50:56:90:00:01 > inet a.b.c.85 netmask 0xffffffe0 broadcast a.b.c.95 > media: Ethernet autoselect (1000baseT ) > status: active > >We've be running FreeBSD 7.x for a couple of years on ESXi 4.0 and 4.1 with no problems. > >We're having tcp/ip failures with 8.2 as syslog-ng server. trafshow shows aggregate port 514 traffic hitting peaks of about 25K char/sec. > >After sometimes many hours of the syslog-ng VM server running well, > >monit from other machines signals port 514 is down, up, down, up. > >this is confirmed by other machines with > >nmap a.b.c.d -p 514 -sU > >... showing closed, open, closed, etc. > >syslog-ng logging for all syslog clients stops more or less simultaneously. > >trafshow filtered for port 514 shows udp packets arriving, but instead of showing the source and destinations by PTR domain name, it switches to showing their IPs. > >to test the external DNS, on the syslog-ng VM, we try > >dig @recursive.server -x a.b.c.d > >and get no response. Other machines query the recursive server successfully. > >Without rebooting the FreeBSD VM, we do > >/etc/rc.d/netif restart >/etc/rc.d/routing restart > >which allows full operation. > >dmesg and messages show no errors. > >Suggestions? > >Len the failure just happened again. this time ssh sessions, like the one running trafshow, are cut off. ssh again gets "connection refused" on another machine running a looping, logging script of nmap a.b.c.d -p 514 -sU show port 514 open It seems like the tcp/ip or em0 driver gets screwed up. Len >_______________________________________________ >freebsd-questions@freebsd.org mailing list >http://lists.freebsd.org/mailman/listinfo/freebsd-questions >To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" > > > > > > >
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