Date: Thu, 14 Apr 2016 17:20:40 +0700 From: Eugene Grosbein <eugen@grosbein.net> To: "Patrick M. Hausen" <hausen@punkt.de>, freebsd-stable <freebsd-stable@freebsd.org> Subject: Re: OpenSSH changes between 10.2 and 10.3 ... Message-ID: <570F6EF8.7060209@grosbein.net> In-Reply-To: <2DD338AE-8DF8-4E59-AE3F-11DF704E455A@punkt.de> References: <2DD338AE-8DF8-4E59-AE3F-11DF704E455A@punkt.de>
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On 14.04.2016 16:44, Patrick M. Hausen wrote: > Hi, all, > > minor problem/annoyance here: > > root@noc:/etc/ssh # ssh admin@10.4.0.62 > Unable to negotiate with 10.4.0.62 port 22: no matching key exchange method found. Their offer: diffie-hellman-group1-sha1,none > root@noc:/etc/ssh # uname -a > FreeBSD noc.pluspunkthosting.de 10.3-RELEASE FreeBSD 10.3-RELEASE #3: Wed Apr 13 14:46:57 CEST 2016 root@noc.pluspunkthosting.de:/usr/obj/usr/src/sys/GENERIC amd64 > > Of course I was able to find http://www.openssh.com/legacy.html myself. > > FreeBSD 10.2 uses OpenSSH 6.6.x while 10.3 imported 7.2. > So far so good. > > The recommended method from the document above works on the > command line: > > ssh -oKexAlgorithms=+diffie-hellman-group1-sha1 admin@10.4.0.62 > > But if I add > > KexAlgorithms +diffie-hellman-group1-sha1 > > to /etc/ssh/ssh_config, that does not change anything. It does change for me. And helps. Make double sure you have added KexAlgorithms to system wide defaults section of ssh_config and not after limiting "Host" directive, or similar.
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