X-Recipient:	archive-cygwin AT delorie DOT com
DKIM-Filter:	OpenDKIM Filter v2.11.0 sourceware.org 5BA35388F043
DKIM-Signature:	v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com;
	s=default; t=1591370833;
	bh=VUj4C9JWS6pU7/vE/wMiUKDDX6jwndpFw1NXmXw5l/k=;
	h=To:Subject:Date:References:In-Reply-To:List-Id:List-Unsubscribe:
	List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:
	From;
	b=m6O4imHgGsXSThWFsqKpgVL/w15nTOgoENcLScO8rhLTXeL+O9DPBAl4QBj8us+OJ
	rCO7c5wcoyM7oIe8JvOzHALvfv5KkyKunFWjBo5NwWsl2L1039+eGEYDJj4IoTFtWs
	yCebNMarbDSOxdpIjtmkgx6I1Yuqfm7n654ajlhw=
X-Original-To:	cygwin AT cygwin DOT com
Delivered-To:	cygwin AT cygwin DOT com
DMARC-Filter:	OpenDMARC Filter v1.3.2 sourceware.org 17491384B0C0
ARC-Seal:	i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none;
	b=Mx+t99Fz7dG2V6sVZAtn035pP4G55mKSat4mStIYuZNo3xAoK/8w8zgb7fHmmhdECOx8pM6ASoOphI2+feymddLPGhgS4TiwYqj63lfIVnkfIf5QroCNy5pilSADRR+L83bCn3j2ay53tkE6EffP/MZ3Py7mLng3jg4HfnTMLAytdijMXC+ZaUmKKq6JW9wvTsdRb5Hs5LQxiFtxlAZugoR84ZSMNADD3fr4NUx+RKzRPHRGfj7EbA5HlSgDv6/hEk7WkxzAEjWPAR2JwlLLwqrGK73+6PP1YqmipE2J9j/jCMZau/q7oHmUJSV7gymXHnxJgaouazl3TkhbTb0G7Q==
ARC-Message-Signature:	i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com;
	s=arcselector9901;
	h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck;
	bh=wvcmifp1NSdYMbmE5WwKO+KpNQXBes5tt0kyzDvRMGI=;
	b=oFfL8vbiVAGBWbMdsRndgbKnvr8ASJGNWRGBXj8iHsrnW4k8RK7GfFtbBp1who3NxJ6q2AVcQX//7gV/eExCHVlsPGX7plhyavxzp8UfGwqLlLkqvp45qaGBWDzbgB9G1WDO5t4aqtqjZS2Bg20yvSNAUSCtqBl7sAbgKZeoILfrx3LGew0bPrBopPjv8+gTwmtDqbCyjbyDDarKaJGQVX5RaJ7uzSUHejag3G5Xy5CPb639YdkZe907SiOXjJMIMTJVib1naX4eP1/lP2p3+BH+otsLgRKkyYTslfbn+BhPyYBl9XsiuhRx9OIPvjgd0FW7uSeTn975U0eLWAbqmA==
ARC-Authentication-Results:	i=1; mx.microsoft.com 1; spf=pass
	smtp.mailfrom=cornell.edu; dmarc=pass action=none header.from=cornell.edu;
	dkim=pass header.d=cornell.edu; arc=none
To:	"cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
Subject:	RE: trouble maintaining an open ssh connection past 20 minutes
Thread-Topic:	trouble maintaining an open ssh connection past 20 minutes
Thread-Index:	AdY7SQ1RJarUpBveTZWpiAyzWjOg5AAAp9gAAAAe2TA=
Date:	Fri, 5 Jun 2020 15:26:54 +0000
Message-ID:	<CH2PR04MB66968E9DE9B05D14E7DD291887860@CH2PR04MB6696.namprd04.prod.outlook.com>
References:	<CH2PR04MB669609E311DC87845B807B5B87860 AT CH2PR04MB6696 DOT namprd04 DOT prod DOT outlook DOT com>
	<1500186340 DOT 2276600 DOT 1591369926471 AT mail DOT yahoo DOT com>
In-Reply-To:	<1500186340.2276600.1591369926471@mail.yahoo.com>
Accept-Language:	en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
x-originating-ip:	[74.69.55.44]
x-ms-publictraffictype:	Email
x-ms-office365-filtering-correlation-id:	66c81d2c-b084-412f-5df2-08d80964e0d7
x-ms-traffictypediagnostic:	CH2PR04MB6742:
x-microsoft-antispam-prvs:	<CH2PR04MB6742A250CFD0649587C8579D87860 AT CH2PR04MB6742 DOT namprd04 DOT prod DOT outlook DOT com>
x-ms-oob-tlc-oobclassifiers:	OLM:949;
x-forefront-prvs:	0425A67DEF
x-ms-exchange-senderadcheck:	1
x-microsoft-antispam:	BCL:0;
x-microsoft-antispam-message-info:	QA3dcnegO8OMsQjIUYprlbwEqqJFoaJbQxt0u4zFUN4HciRU8G35VbR2qEx4TvgYasdFX6veEKNg90PYYo6e5AiE1uGmIqx2NRsSYx5iIv1HPI+vOMhtpzt0cptDl8WINvpdhaYoJnL0S5h2ufuVNYAc7f63EreCZH6ZNB01J0HLcRSjwDP1rqNtcKIel5o4hRD0vHkURkvvvW9j7HDGKy7gpCkDtr/wSJxQj/1twJO12up+GFimmQb89GzcsQ0iv/fQtoT8LBQEayJjXbe+f68SRkaJUYhnSPCiExinUN6eCICZXN5W3HuUlQiL/TenU0XkbZDwq6wC4KE+jIYyOA==
x-forefront-antispam-report:	CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:;
	IPV:NLI; SFV:NSPM; H:CH2PR04MB6696.namprd04.prod.outlook.com; PTR:; CAT:NONE;
	SFTY:;
	SFS:(4636009)(346002)(39860400002)(366004)(376002)(136003)(396003)(86362001)(2906002)(66556008)(76116006)(66446008)(316002)(55016002)(64756008)(8936002)(9686003)(786003)(53546011)(186003)(7696005)(26005)(6506007)(6916009)(8676002)(71200400001)(66946007)(66476007)(5660300002)(83380400001)(33656002)(478600001)(75432002)(52536014);
	DIR:OUT; SFP:1102;
x-ms-exchange-antispam-messagedata:	mBGv10grR9rhAgfiTys8yxp43pUoHHg8/MUrQ46CbafIp3A2Z4gK0JHz1K+uIXo6U6pgvrl6IL8YvZsWm5R9epR/0W0srDoaJpY7EcjhpZ5UV3E/D8wrmTovc61EDehpSGHJegRI7Hm6iXVmebifMiNHyC1WFy/WUrmM0BlZ2MuTciiklY7cqUPxav+E48ecbAtDDMct4ZlH3Bs8SF16T81NJ4fHcw4J0CyhQYVLUebGaVIJOm1a/33P3MB/4uXjvweIMEpK68SCxVHuGsWr0L68W04DdRvrOzQNlfcF3JkNCDf3qLA8ngH51hMbWnm/p4oaIN0FpCtlL7O/HXyOv6vAu0rzON5P0xRTdoVnDVKcFTz7GaYtoqDACZO6qDWWl87RvAyUDC/dJhG6IYs+DyFH2uVn92cJh0AFAUJ7wbnPCDyZg/KHOojINNrqXk6gzSLF1dNFgS5JnqDT0jcvgpbnEix86ZJ+weJ37F8XGyU=
x-ms-exchange-transport-forked:	True
MIME-Version:	1.0
X-OriginatorOrg:	cornell.edu
X-MS-Exchange-CrossTenant-Network-Message-Id:	66c81d2c-b084-412f-5df2-08d80964e0d7
X-MS-Exchange-CrossTenant-originalarrivaltime:	05 Jun 2020 15:26:54.5171 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader:	Hosted
X-MS-Exchange-CrossTenant-id:	5d7e4366-1b9b-45cf-8e79-b14b27df46e1
X-MS-Exchange-CrossTenant-mailboxtype:	HOSTED
X-MS-Exchange-CrossTenant-userprincipalname:	2JZYSHPeGgi9EvcqM4iVdyq4mnJaDC/PW/VZ7TRxMkpMp4PfzpsQ0GMDUWcAMUcIskAcJsTijMMHYFrkhbZ46A==
X-MS-Exchange-Transport-CrossTenantHeadersStamped:	CH2PR04MB6742
X-Spam-Status:	No, score=-2.0 required=5.0 tests=BAYES_00, DKIM_SIGNED,
	DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, JMQ_SPF_NEUTRAL, RCVD_IN_DNSWL_NONE,
	RCVD_IN_MSPIKE_H2, SPF_HELO_PASS, 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 AT cygwin DOT com
X-Mailman-Version:	2.1.29
List-Id:	General Cygwin discussions and problem reports <cygwin.cygwin.com>
List-Archive:	<https://cygwin.com/pipermail/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-request AT cygwin DOT com?subject=help>
List-Subscribe:	<http://cygwin.com/mailman/listinfo/cygwin>,
	<mailto:cygwin-request AT cygwin DOT com?subject=subscribe>
From:	"Frances B. Webb via Cygwin" <cygwin AT cygwin DOT com>
Reply-To:	"Frances B. Webb" <frances DOT webb AT cornell DOT edu>
Sender:	"Cygwin" <cygwin-bounces AT cygwin DOT com>
X-MIME-Autoconverted:	from base64 to 8bit by delorie.com id 055FRcPG010270

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.

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.

-----Original Message-----
From: matthew patton <pattonme AT yahoo DOT com> 
Sent: Friday, June 5, 2020 11:12 AM
To: Frances B. Webb <frances DOT webb AT cornell DOT edu>
Subject: Re: trouble maintaining an open ssh connection past 20 minutes

post your ssh config. specifically if you're doing heartbeat packets and loss threshold. And also have you talked to your firewall admins? 

eg.
  ServerAliveInterval 90
  ServerAliveCountMax 3

--
Problem reports:      https://cygwin.com/problems.html
FAQ:                  https://cygwin.com/faq/
Documentation:        https://cygwin.com/docs.html
Unsubscribe info:     https://cygwin.com/ml/#unsubscribe-simple

- Raw text -