[OpenIndiana-discuss] OpenSSH GSS-API-key-exchange

Tim Mooney Tim.Mooney at ndsu.edu
Mon Dec 19 21:03:10 UTC 2016


In regard to: [OpenIndiana-discuss] OpenSSH GSS-API-key-exchange, Alexander...:

> Currently OpenSSH in OpenIndiana supports GSSAPIKeyExchange option
> and enables it by default
> (support for authenticating server via GSSAPI - alternative to
> distributing server ssh keys) - 
> http://www.sxw.org.uk/computing/patches/openssh.html .
> This is a separate patch (but widespread one - it is supported by Debian and 
> RedHat).
>
> The issue is that if DNS is misconfigured on client side, it can lead to long 
> delays
> while connecting to ssh server.
>
> The question is - who does really use this option on OI? Can we just drop this 
> patch
> (or at least disable it by default) without significant impact on user 
> systems?

We have a full Kerberos infrastructure where I work and we've experimented
with using GSS for host key exchange, but we're not currently using it in
production.

I guess my preference would be to continue to have the patch included,
but default to

GSSAPIKeyExchange no

in the sshd config.

Tim
-- 
Tim Mooney                                             Tim.Mooney at ndsu.edu
Enterprise Computing & Infrastructure                  701-231-1076 (Voice)
Room 242-J6, Quentin Burdick Building                  701-231-8541 (Fax)
North Dakota State University, Fargo, ND 58105-5164



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