From owner-freebsd-net@freebsd.org Tue Sep 15 07:48:30 2015 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 0C23AA036AB for ; Tue, 15 Sep 2015 07:48:30 +0000 (UTC) (envelope-from ohartman@zedat.fu-berlin.de) Received: from outpost1.zedat.fu-berlin.de (outpost1.zedat.fu-berlin.de [130.133.4.66]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id BCEF41318 for ; Tue, 15 Sep 2015 07:48:29 +0000 (UTC) (envelope-from ohartman@zedat.fu-berlin.de) Received: from inpost2.zedat.fu-berlin.de ([130.133.4.69]) by outpost.zedat.fu-berlin.de (Exim 4.85) with esmtp (envelope-from ) id <1ZbkyX-0017QH-Nw>; Tue, 15 Sep 2015 09:48:25 +0200 Received: from p578a69f9.dip0.t-ipconnect.de ([87.138.105.249] helo=freyja.zeit4.iv.bundesimmobilien.de) by inpost2.zedat.fu-berlin.de (Exim 4.85) with esmtpsa (envelope-from ) id <1ZbkyX-000gpy-Iy>; Tue, 15 Sep 2015 09:48:25 +0200 Date: Tue, 15 Sep 2015 09:48:24 +0200 From: "O. Hartmann" To: Xin Li Cc: freebsd-net@freebsd.org Subject: Re: HELP! Mysterious socket 843/tcp listening on CURRENT system Message-ID: <20150915094824.7021f0b2@freyja.zeit4.iv.bundesimmobilien.de> In-Reply-To: <55F7C51D.4030704@delphij.net> References: <20150915090658.1e0b9074@freyja.zeit4.iv.bundesimmobilien.de> <55F7C51D.4030704@delphij.net> Organization: FU Berlin X-Mailer: Claws Mail 3.12.0 (GTK+ 2.24.28; amd64-portbld-freebsd11.0) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Originating-IP: 87.138.105.249 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.20 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, 15 Sep 2015 07:48:30 -0000 On Tue, 15 Sep 2015 00:13:33 -0700 Xin Li wrote: > > > On 9/15/15 00:06, O. Hartmann wrote: > > Hopefully, I'm right on this list. if not, please forward. > > > > Running CURRENT as of FreeBSD 11.0-CURRENT #3 r287780: Mon Sep 14 13:34:16 > > CEST 2015 amd64, I check via nmap for open sockets since I had trouble > > protecting a server with IPFW and NAT. > > > > I see a service (nmap) > > > > Host is up (0.041s latency). > > Not shown: 998 filtered ports > > PORT STATE SERVICE > > 843/tcp open unknown > > > > and via sockstat -l -p 843, I get this: > > ? ? ? ? tcp4 *:843 *:* > > Sounds like there is a kernel listener, wild guess -- what does rpcinfo > -p say? > > Cheers, > ... lost contact to system, will reply as soon as I gain access ...