From owner-freebsd-questions Tue Apr 10 21:11:39 2001 Delivered-To: freebsd-questions@freebsd.org Received: from priv-edtnes03-hme0.telusplanet.net (fepout1.telus.net [199.185.220.236]) by hub.freebsd.org (Postfix) with ESMTP id 869DB37B422 for ; Tue, 10 Apr 2001 21:11:36 -0700 (PDT) (envelope-from tmchow@sfu.ca) Received: from CRX.sfu.ca ([209.53.63.29]) by priv-edtnes03-hme0.telusplanet.net (InterMail vM.4.01.03.10 201-229-121-110) with ESMTP id <20010411041135.IOUS7520.priv-edtnes03-hme0.telusplanet.net@CRX.sfu.ca>; Tue, 10 Apr 2001 22:11:35 -0600 Message-Id: <5.0.2.1.2.20010410210546.02089310@popserver.sfu.ca> X-Sender: tmchow@popserver.sfu.ca X-Mailer: QUALCOMM Windows Eudora Version 5.0.2 Date: Tue, 10 Apr 2001 21:17:01 -0700 To: David Kelly From: Trevin Chow Subject: Re: Firewall rules causing SSH disconects? Cc: Lowell Gilbert , freebsd-questions@FreeBSD.ORG In-Reply-To: <200104110353.f3B3rXP12859@grumpy.dyndns.org> References: <5.0.2.1.2.20010410170717.02dc5d18@popserver.sfu.ca> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG At 10:53 PM 4/10/2001 -0500, David Kelly wrote: >What is the length of time involved? >You say you have replicated the problem from both W2K and Solaris >clients but I'm still curious as to what is between those systems and >your FreeBSD system. Guessing the FreeBSD system is at home on DSL or >cable modem? A number of ISPs have what are supposed to be transparent >caches between their users and the internet. Sometimes they really are >transparent. Sometimes not. A friend had a heck of a time with ftp and >ssh into his home computer on @home, then magically one day the >problems disappeared. I'm not exactly sure of the time length involved before the disconnects, because it seems to happen mainly when there's a time period of idleness.. What will happen is that the connection will sit there for a bit, then if I then type a character or two (like the letter L is "ls"), it will show the "l" but then disconnect me. I have no way to knowing how much time has elapsed unfortunately. I thought it might have been auto-logging me out, so to be sure, I set the TMOUT in bash to be 3600 seconds... so I've eliminated that as a possibility. My FreeBSD box and Win2k computer are both on DSL with external IPs. Therefore it's only 2 hops between the Win2k and the FreeBSD box (one hop to my router, 209.53.60.254, and the other back to the freebsd box). The 2 machines are in the same household. The Solaris box is at my university and about 9 hops away but presumably uses the same router. I'm just thinking it's my FreeBSD box somehow in the setup/configuration. The first thing is I'm able to connect remotely via SSH and the connection constantly dies... if I have more than one connection open, they all die. Second is that at times I'm getting the "sshd: Write Failed: Permission Denied" error, which is indicating something wrong on my end. However, it's not firewall related since I'm running an open ruleset. Regards, Trevin Chow To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message