From nobody Wed Jun 21 23:05:18 2023 X-Original-To: freebsd-net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4QmfHB5nBkz4gqPT; Wed, 21 Jun 2023 23:05:26 +0000 (UTC) (envelope-from jamie@catflap.org) Received: from donotpassgo.dyslexicfish.net (donotpassgo.dyslexicfish.net [IPv6:2001:19f0:7400:8808:123::1]) by mx1.freebsd.org (Postfix) with ESMTP id 4QmfHB3HJsz4JGk; Wed, 21 Jun 2023 23:05:26 +0000 (UTC) (envelope-from jamie@catflap.org) Authentication-Results: mx1.freebsd.org; none X-Catflap-Envelope-From: X-Catflap-Envelope-To: freebsd-arm@FreeBSD.org Received: from donotpassgo.dyslexicfish.net (donotpassgo.dyslexicfish.net [209.250.224.51]) by donotpassgo.dyslexicfish.net (8.14.5/8.14.5) with ESMTP id 35LN5Jtm069588; Thu, 22 Jun 2023 00:05:19 +0100 (BST) (envelope-from jamie@donotpassgo.dyslexicfish.net) Received: (from jamie@localhost) by donotpassgo.dyslexicfish.net (8.14.5/8.14.5/Submit) id 35LN5ITH069587; Thu, 22 Jun 2023 00:05:18 +0100 (BST) (envelope-from jamie) From: Jamie Landeg-Jones Message-Id: <202306212305.35LN5ITH069587@donotpassgo.dyslexicfish.net> Date: Thu, 22 Jun 2023 00:05:18 +0100 Organization: Dyslexic Fish To: marklmi@yahoo.com, fbsd@www.zefox.net Cc: freebsd-net@FreeBSD.org, freebsd-arm@FreeBSD.org Subject: Re: -current dropping ssh connections References: In-Reply-To: User-Agent: Heirloom mailx 12.4 7/29/08 List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.2.7 (donotpassgo.dyslexicfish.net [209.250.224.51]); Thu, 22 Jun 2023 00:05:19 +0100 (BST) X-Rspamd-Queue-Id: 4QmfHB3HJsz4JGk X-Spamd-Bar: ---- X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:20473, ipnet:2001:19f0:7400::/38, country:US] X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-ThisMailContainsUnwantedMimeParts: N bob prohaska wrote: > I can't detect any consistent pattern. For a while I thought load on the > sshd-host end made a difference, but the latest disconnect was on an idle > system with serial console output the only traffic on the dropped connection. Could it be that the serial connection is sending the ssh-escape sequence? Try adding "-e none" to the initial ssh connection command. Cheers, Jamie