From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from nickpopoff.net (144-129-134-158.biz.spectrum.com [144.129.134.158]) by sourceware.org (Postfix) with ESMTPS id E5E7E3858401 for ; Sun, 7 Nov 2021 23:58:34 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org E5E7E3858401 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=nickpopoff.net Authentication-Results: sourceware.org; spf=none smtp.mailfrom=nickpopoff.net Received: from APUS by nickpopoff.net (13.0.1 build 6 x64) with ASMTP (SSL) id 202111071858330800 for ; Sun, 07 Nov 2021 18:58:33 -0500 From: "Nick Popoff" To: Subject: Problem upgrading from 3.2 to 3.3.1 Date: Sun, 7 Nov 2021 18:58:33 -0500 Message-ID: <004701d7d433$5f9415c0$1ebc4140$@nickpopoff.net> MIME-Version: 1.0 X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQE5Q02oBfwsePyKmHRmHgBSQAbSSA== Content-Language: en-us X-CTCH: RefID="str=0001.0A742F27.61886829.0026,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0"; Spam="Unknown"; VOD="Unknown" X-Spam-Status: No, score=4.6 required=5.0 tests=BAYES_50, HTML_MESSAGE, KAM_DMARC_STATUS, KAM_LAZY_DOMAIN_SECURITY, KAM_NUMSUBJECT, KHOP_HELO_FCRDNS, PDS_RDNS_DYNAMIC_FP, RDNS_DYNAMIC, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=no autolearn_force=no version=3.4.4 X-Spam-Level: **** X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Content-Filtered-By: Mailman/MimeDel 2.1.29 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: Sun, 07 Nov 2021 23:58:36 -0000 In other words, the 3.3.1 ssh.exe does not accept legacy kex algorithms at all, no matter what. I no longer can log in to Solaris. For example, it DOES NOT accept the following: C:/cygwin64/home/Nick> ssh.exe -o KexAlgorithms=+diffie-hellman-group14-sha1 nick@host.com Unable to negotiate with 50.248.140.9 port 22: no matching host key type found. Their offer: ssh-rsa,ssh-dss Version 3.2 had no problem with legacy algorithms. Can somebody explain as to what is going on here. Is it a bug? Or a deliberate break of compatibility? ================== Now I Am having severe problem with 'ssh'. A simple login command like: Ssh nick@....com Results in the following response: C:/cygwin64/home/Nick> ssh host.com Unable to negotiate with port 22: no matching key exchange method found. Their offer: gss-group1-sha1-toWM5Slw5Ew8Mqkay+al2g==,diffie-hellman-group-exchange-sha1, diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 This is a fresh install of Cygwin on a clean Windows 11. I went back to 3.2 for now as I cannot work with 3.3.1. Nick