From owner-freebsd-security@FreeBSD.ORG Sat Oct 3 11:26:03 2009 Return-Path: Delivered-To: freebsd-security@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5773A106568D for ; Sat, 3 Oct 2009 11:26:03 +0000 (UTC) (envelope-from des@des.no) Received: from tim.des.no (tim.des.no [194.63.250.121]) by mx1.freebsd.org (Postfix) with ESMTP id 1717F8FC12 for ; Sat, 3 Oct 2009 11:26:02 +0000 (UTC) Received: from ds4.des.no (des.no [84.49.246.2]) by smtp.des.no (Postfix) with ESMTP id E84596D41B; Sat, 3 Oct 2009 11:26:01 +0000 (UTC) Received: by ds4.des.no (Postfix, from userid 1001) id BEA8A84426; Sat, 3 Oct 2009 13:26:01 +0200 (CEST) From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= To: Ian Smith References: <4AC545C3.9020608@johnea.net> <19141.20047.694147.865710@hergotha.csail.mit.edu> <4AC61C0B.3050704@johnea.net> <20091003042802.O10039@sola.nimnet.asn.au> Date: Sat, 03 Oct 2009 13:26:01 +0200 In-Reply-To: <20091003042802.O10039@sola.nimnet.asn.au> (Ian Smith's message of "Sat, 3 Oct 2009 04:43:08 +1000 (EST)") Message-ID: <86hbugyb06.fsf@ds4.des.no> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.95 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Cc: freebsd-security@freebsd.org, johnea Subject: Re: openssh concerns X-BeenThere: freebsd-security@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Security issues \[members-only posting\]" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 03 Oct 2009 11:26:03 -0000 Ian Smith writes: > http://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers provides a= =20 > reasonably useful list of ports NOT to choose for an obscure ssh port. In practice, you have no choice but to use someting like 443 or 8080, because corporate firewalls often block everything but a small number of ports (usually 20, 22, 80, 443, 8080, and odds are that 20, 80 and 8080 go through a transparent proxy) DES --=20 Dag-Erling Sm=C3=B8rgrav - des@des.no