From owner-freebsd-stable Sun Nov 5 9:30:10 2000 Delivered-To: freebsd-stable@freebsd.org Received: from hugo10.ka.punkt.de (hugo10.ka.punkt.de [194.77.233.242]) by hub.freebsd.org (Postfix) with ESMTP id 4F03C37B4D7 for ; Sun, 5 Nov 2000 09:30:05 -0800 (PST) Received: (from ry93@localhost) by hugo10.ka.punkt.de (8.9.3/8.9.3) id SAA59310; Sun, 5 Nov 2000 18:29:51 +0100 (CET) (envelope-from ry93) From: "Patrick M. Hausen" Message-Id: <200011051729.SAA59310@hugo10.ka.punkt.de> Subject: Re: Problem with firewall, any ideas? In-Reply-To: <20001104232720.B45237@tigerfish2.my.domain> from Bruce Burden at "Nov 4, 2000 11:27:20 pm" To: brucegb@realtime.net (Bruce Burden) Date: Sun, 5 Nov 2000 18:29:51 +0100 (CET) Cc: freebsd-stable@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL54 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Hello! > Anybody want to hazard why I can't rlogin/telnet to any sites? > About the only clue I have is that I get ACK packets from machines/ > sites I can connect to, none from machines/sites that time out. Slightly OT on -stable, I'd guess, but here it goes ... This looks like the typical "broken reverse mapping" problem to me. The sites, you can't connect to time out in DNS trying to figure out the hostname asociated with your IP address. Try connecting to one of the sites that don't work once more and just wait. Really _wait_, i.e. quite a few minutes. If you get a connection eventually, it's reverse lookups. The machines you can connect to either don't care or - like one of our customers once - are within the same administrative domain and do get correct reverse lookups while the reverse delegation for that particular network was broken for the rest of the internet. Anyway, without further information this is just an - though educated - guess. HTH, Patrick -- --- WEB ISS GmbH - Scheffelstr. 17a - 76135 Karlsruhe - 0721/9109-0 --- ------ Patrick M. Hausen - Technical Director - hausen@punkt.de ------- "Contrary to popular belief, penguins are not the salvation of modern technology. Neither do they throw parties for the urban proletariat." To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message