From owner-freebsd-questions Sat Feb 22 9:19:27 2003 Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id D87D037B401 for ; Sat, 22 Feb 2003 09:19:25 -0800 (PST) Received: from post-20.mail.nl.demon.net (post-20.mail.nl.demon.net [194.159.73.1]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8B60443F75 for ; Sat, 22 Feb 2003 09:19:24 -0800 (PST) (envelope-from cls@raggedclown.net) Received: from [212.238.197.102] (helo=mailhost.raggedclown.net) by post-20.mail.nl.demon.net with esmtp (Exim 3.36 #1) id 18mdJ5-0003KF-00 for freebsd-questions@FreeBSD.ORG; Sat, 22 Feb 2003 17:19:23 +0000 Received: from localhost (localhost [127.0.0.1]) by mailhost.raggedclown.net (Ragged Clown Mail Gateway [dawn]) with ESMTP id 2831AC7BB for ; Sat, 22 Feb 2003 18:19:22 +0100 (CET) Received: from willow.raggedclown.net (willow.raggedclown.intra [192.168.1.10]) by mailhost.raggedclown.net (Ragged Clown Mail Gateway [dawn]) with ESMTP id F3C6E610C for ; Sat, 22 Feb 2003 18:19:10 +0100 (CET) Received: by willow.raggedclown.net (Ragged Clown Host [willow], from userid 1009) id DAC5D225C2; Sat, 22 Feb 2003 18:19:11 +0100 (CET) Date: Sat, 22 Feb 2003 18:19:11 +0100 From: Cliff Sarginson To: freebsd-questions@FreeBSD.ORG Subject: Re: How to tell if Port is blocked... Message-ID: <20030222171911.GA2036@raggedclown.net> References: <20030222071513.61900bfe.roddierod@hotpop.com> <20030222134622.GA53734@marvin.penguinpowered.org.uk> <20030222162147.GO45398@keyslapper.org> <200302220843.33735.kstewart@owt.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200302220843.33735.kstewart@owt.com> User-Agent: Mutt/1.5.3i X-Virus-Scanned: by AMaViS 0.3.12pre8 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Sat, Feb 22, 2003 at 08:43:33AM -0800, Kent Stewart wrote: > On Saturday 22 February 2003 08:21 am, Louis LeBlanc wrote: > > On 02/22/03 01:46 PM, Wayne Pascoe sat at the `puter and typed: > > > On Sat, Feb 22, 2003 at 07:15:13AM -0500, Rod Person wrote: > > > > I'm running FreeBSD 5.0, I think that my isp have recently block > > > > ports on me. I know the block port 82. But is there a way I can > > > > test to see if other ports are blocked? > > > > > > If you have access from a machine outside your network, telnet to > > > your home IP address on that port. Eg to test port 80 > > > telnet my.ip.address.here 80 > > > > I've run into this before, and this will tell you if that port is > > blocked, but not where. Try a traceroute on the port (see manpage, I > > don't remember if it's as simple as with telnet). > > > > Unfortunately, it still may not tell you how to fix the problem. If > > you're using a DSL or cable modem, the port may get blocked there, > > and may not be configurable. > > > > > Last time I looked, Verizon had a no-local sever clause in their Terms > of Service. > Traceroute is not really the tool you are after. You need an external port scan done using another Internet connection or by a friend, or someone you can trust will not use the results for nefarious means. There are sites that will do simple scans for you .. but of course is up to you whether you trust them ;). Actually I get scanned several times a day by dopeheads looking for open-ports on my system. It is a fact of Internet life, it is not rocket science. Probably everyone on this list, certainly if they have a (semi)permanent net connection gets scanned as well. If your ISP is blocking you..change your ISP. -- Regards Cliff Sarginson The Netherlands [ This mail has been checked as virus-free ] To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message