Date: Tue, 10 Apr 2001 21:17:01 -0700 From: Trevin Chow <tmchow@sfu.ca> To: David Kelly <dkelly@grumpy.dyndns.org> Cc: Lowell Gilbert <lowell@world.std.com>, freebsd-questions@FreeBSD.ORG Subject: Re: Firewall rules causing SSH disconects? Message-ID: <5.0.2.1.2.20010410210546.02089310@popserver.sfu.ca> In-Reply-To: <200104110353.f3B3rXP12859@grumpy.dyndns.org> References: <Message from Trevin Chow <tmchow@sfu.ca> <5.0.2.1.2.20010410170717.02dc5d18@popserver.sfu.ca>
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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
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