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Date:      Sat, 6 Jul 2002 19:28:07 -0400
From:      Scott Lambert <lambert@lambertfam.org>
To:        freebsd-security@freebsd.org
Subject:   Re: Default ssh protocol in -STABLE [was: HEADS UP: FreeBSD-STABLE
Message-ID:  <20020706232807.GA76607@laptop.lambertfam.org>
In-Reply-To: <200207061752.g66HqNX00351@sheol.localdomain>
References:  <xzphejepfd7.fsf_-__flood.ping.uio.no@ns.sol.net> <20020706035731.N2631-100000_walter@ns.sol.net> <200207061752.g66HqNX00351@sheol.localdomain>

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On Sat, Jul 06, 2002 at 12:52:23PM -0500, D J Hawkey Jr wrote:
> In article <20020706035731.N2631-100000_walter@ns.sol.net>,
> 	jason-fbsd-security@shalott.net writes:
> >> > As a lot has changed with OpenSSH in FreeBSD, perhaps now is a good
> >> > time to make the 2,1 the default instead ?
> >> I'd like that.  I think the only reason for the old default was not to
> >> surprise users who had the ssh1 RSA host key in their known_hosts but
> >> not the ssh2 DSA host key.
> >>
> >> What do people think about this?  Keep 2,1 or revert to 1,2?
> > 
> > There is a whole lot of infrastructure surrounding ssh v1 keys out there,
> > and it will all break if you change the default to v2.
> 
> "2,1" means "v2" with fallback to "v1". This shouldn't break anything,
> unless something's already broken in a system's v2 configuration.

Unless you only have an v1 authorized key.  Then you have to go through
and either change all your ssh invocations in your scripts to use the "-1"
parameter or create v2 keys.

It sucks when your automated scripts don't run because of a new default.

I'll live with it for my 20 hosts.  Others, with bigger networks, have 
legitimate issues here.

-- 
Scott Lambert                    KC5MLE                       Unix SysAdmin
lambert@lambertfam.org      

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