From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from forward103j.mail.yandex.net (forward103j.mail.yandex.net [IPv6:2a02:6b8:0:801:2::106]) by sourceware.org (Postfix) with ESMTPS id EE641385DC0A for ; Fri, 5 Jun 2020 19:20:02 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org EE641385DC0A Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=yandex.ru Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=anrdaemon@yandex.ru Received: from forward102q.mail.yandex.net (forward102q.mail.yandex.net [IPv6:2a02:6b8:c0e:1ba:0:640:516:4e7d]) by forward103j.mail.yandex.net (Yandex) with ESMTP id 336DE6740B50; Fri, 5 Jun 2020 22:20:01 +0300 (MSK) Received: from mxback7q.mail.yandex.net (mxback7q.mail.yandex.net [IPv6:2a02:6b8:c0e:41:0:640:cbbf:d618]) by forward102q.mail.yandex.net (Yandex) with ESMTP id 2ED607F20017; Fri, 5 Jun 2020 22:20:01 +0300 (MSK) Received: from vla4-d1b041059520.qloud-c.yandex.net (vla4-d1b041059520.qloud-c.yandex.net [2a02:6b8:c17:914:0:640:d1b0:4105]) by mxback7q.mail.yandex.net (mxback/Yandex) with ESMTP id nQBMz683Gg-K18Cmw5q; Fri, 05 Jun 2020 22:20:01 +0300 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1591384801; bh=nBQbw/2xeYmvzVYC7WPth0sMbRDt3E84KaFWp2O+DEk=; h=In-Reply-To:Subject:To:Reply-To:From:Message-ID:References:Date; b=qxNNSSjRdnPA4e2eRhT/UatVedrg+ulWcNmFLGyY0MFxCLFUSHdVMXzeIBqUczUSE ntQc6pss8ys2TM64elle/1+fGwdRTvSTVwo1RsgljepFtcsp4l5ZDZuNJeu1y2ys2d 1iEPSeyRKHL/ij9sDHBehoMBa/f5KwVrjLa4CeHw= Authentication-Results: mxback7q.mail.yandex.net; dkim=pass header.i=@yandex.ru Received: by vla4-d1b041059520.qloud-c.yandex.net (smtp/Yandex) with ESMTPSA id RjPMffZk22-K0X066qI; Fri, 05 Jun 2020 22:20:00 +0300 (using TLSv1 with cipher ECDHE-RSA-AES128-SHA (128/128 bits)) (Client certificate not present) Received: from [192.168.1.10] (HELO daemon2.darkdragon.lan) by daemon2 (Office Mail Server 0.8.12 build 08053101) with SMTP; Fri, 05 Jun 2020 19:05:34 -0000 Date: Fri, 5 Jun 2020 22:05:34 +0300 From: Andrey Repin X-Mailer: The Bat! (v6.8.8) Home Reply-To: cygwin@cygwin.com X-Priority: 3 (Normal) Message-ID: <366236392.20200605220534@yandex.ru> To: "Frances B. Webb" , cygwin@cygwin.com Subject: Re: trouble maintaining an open ssh connection past 20 minutes In-Reply-To: References: <1500186340.2276600.1591369926471@mail.yahoo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-1.2 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, KAM_THEBAT, RCVD_IN_DNSWL_LOW, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=no autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: cygwin@cygwin.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: General Cygwin discussions and problem reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 05 Jun 2020 19:20:05 -0000 Greetings, Frances B. Webb! > My ssh config is this, followed by a bunch of hostname aliases: > Host * > ServerAliveInterval 180 > Host solr* jenkins folio* > IdentityFile ~/.ssh/aws_id_rsa > The ServerAliveInterval is something I added when I was trying to debug the > issue last summer. It didn't work, and I never took it out. I hope you are aware that all matching operators mutually exclusive? > The servers that I'm communicating with are a combination of Amazon Web > Services hosted and on-campus server farm machines. Both sets are virtual > machines, if that makes any difference. I did ask last summer, and all I got > from our operations people was an assurance that they definitely didn't set > up the servers to limit ssh sessions to 20 minutes. If there are specific > misconfigurations that someone can suggest I check or ask them about, I'd be > happy to pursue that further. Out-of-date server software is worth looking > into if there are known incompatibilities. Do you have any local firewall software installed? -- With best regards, Andrey Repin Friday, June 5, 2020 22:04:09 Sorry for my terrible english...