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Date:      Sun, 7 Aug 2016 12:59:24 +0100
From:      Bruce Simpson <bms@fastmail.net>
To:        Oliver Pinter <oliver.pinter@hardenedbsd.org>
Cc:        =?UTF-8?Q?Dag-Erling_Sm=c3=b8rgrav?= <des@freebsd.org>, src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   Re: svn commit: r303716 - head/crypto/openssh
Message-ID:  <b99c06ac-82d6-ccda-419c-2ece5be4636f@fastmail.net>
In-Reply-To: <CAPQ4fftQ30_aqU8V_ea-WEKBdMZs5H9Rwxnfa0crid_df049nQ@mail.gmail.com>
References:  <201608031608.u73G8Mjq055909@repo.freebsd.org> <d419bddd-fe56-bc11-8965-142ca0b94ebc@fastmail.net> <9a01870a-d99d-13a2-54bd-01d32616263c@fastmail.net> <CAPQ4fftQ30_aqU8V_ea-WEKBdMZs5H9Rwxnfa0crid_df049nQ@mail.gmail.com>

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On 07/08/16 12:43, Oliver Pinter wrote:
>> I was able to override this (somewhat unilateral, to my mind)
>> deprecation of the DH key exchange by using this option:
>> -oKexAlgorithms=+diffie-hellman-group1-sha1
>
> You can add this option to /etc/ssh/ssh.conf or ~/.ssh/config too.

Can this at least be added (commented out, if you really want to enforce 
this policy on users out-of-the-box) to the former file in FreeBSD 
itself? And a note added to UPDATING?

Otherwise, it's almost as though those behind the change are assuming 
that users will just know exactly what to do in their operational 
situation. That's a good way to cause problems for folk using FreeBSD in 
IT operations.

(systemd epitomises this kind of foot shooting.)

I understand already - you want to deprecate a set of key exchanges, and 
believe in setting an example - but the rest of the world might not be 
ready for that just yet.



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