From owner-freebsd-doc Tue Dec 31 7:50:14 2002 Delivered-To: freebsd-doc@hub.freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5F61937B401 for ; Tue, 31 Dec 2002 07:50:12 -0800 (PST) Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7915443ED4 for ; Tue, 31 Dec 2002 07:50:11 -0800 (PST) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.12.6/8.12.6) with ESMTP id gBVFoBNS037610 for ; Tue, 31 Dec 2002 07:50:11 -0800 (PST) (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.12.6/8.12.6/Submit) id gBVFoBAT037609; Tue, 31 Dec 2002 07:50:11 -0800 (PST) Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4E8AF37B405 for ; Tue, 31 Dec 2002 07:47:49 -0800 (PST) Received: from h24-82-193-81.wp.shawcable.net (h24-82-193-81.wp.shawcable.net [24.82.193.81]) by mx1.FreeBSD.org (Postfix) with ESMTP id 277F643ED4 for ; Tue, 31 Dec 2002 07:47:48 -0800 (PST) (envelope-from modulus@h24-82-193-81.wp.shawcable.net) Received: from h24-82-193-81.wp.shawcable.net (modulus@localhost [127.0.0.1]) by h24-82-193-81.wp.shawcable.net (8.12.6/8.12.6) with ESMTP id gBVFmiE0096872 for ; Tue, 31 Dec 2002 09:48:44 -0600 (CST) (envelope-from modulus@h24-82-193-81.wp.shawcable.net) Received: (from modulus@localhost) by h24-82-193-81.wp.shawcable.net (8.12.6/8.12.6/Submit) id gBVFmhSc096871; Tue, 31 Dec 2002 09:48:43 -0600 (CST) Message-Id: <200212311548.gBVFmhSc096871@h24-82-193-81.wp.shawcable.net> Date: Tue, 31 Dec 2002 09:48:43 -0600 (CST) From: "Christian S.J. Peron" Reply-To: "Christian S.J. Peron" To: FreeBSD-gnats-submit@FreeBSD.org X-Send-Pr-Version: 3.113 Subject: docs/46654: [patch] blackhole(4) gives false information Sender: owner-freebsd-doc@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org >Number: 46654 >Category: docs >Synopsis: [patch] blackhole(4) gives false information >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-doc >State: open >Quarter: >Keywords: >Date-Required: >Class: doc-bug >Submitter-Id: current-users >Arrival-Date: Tue Dec 31 07:50:00 PST 2002 >Closed-Date: >Last-Modified: >Originator: Christian S.J. Peron >Release: FreeBSD 4.7-RELEASE-p2 i386 >Organization: >Environment: System: FreeBSD h24-82-193-81 4.7-RELEASE-p2 FreeBSD 4.7-RELEASE-p2 #1: Fri Dec 6 00:00:31 CST 2002 modulus@h24-82-193-81:/usr/src/sys/compile/opcode i386 >Description: When blackhole(4) describes the "normal behaviour" of TCP, it states "when a TCP SYN segment is received on a port where there is no socket accepting connections, is for the system to return a RST segment, and drop the connection. The connecting system will see this as a "Connection reset by peer".". The functional description is accurate, however the connecting system will report the failure as "Connection refused" (ECONNREFUSED) rather then "Connection reset by peer" (ECONNRESET). >How-To-Repeat: N/A >Fix: --- /usr/src/share/man/man4/blackhole.4.wrong Mon Dec 30 23:13:15 2002 +++ /usr/src/share/man/man4/blackhole.4 Mon Dec 30 23:13:52 2002 @@ -34,7 +34,7 @@ Normal behaviour, when a TCP SYN segment is received on a port where there is no socket accepting connections, is for the system to return a RST segment, and drop the connection. The connecting system will -see this as a "Connection reset by peer". By setting the TCP blackhole +see this as a "Connection refused". By setting the TCP blackhole MIB to a numeric value of one, the incoming SYN segment is merely dropped, and no RST is sent, making the system appear as a blackhole. By setting the MIB value to two, any segment arriving >Release-Note: >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-doc" in the body of the message