X11forwarding yes: how to debug/setup after xauth fix

[Mamfelt]

Certainly sends a strong hint. 

Thx again. 

Sent from my iPhone

> On 13 Oct 2017, at 23:16, Damien Miller <djm at mindrot.org> wrote:
> 
> 
> 
>> On Fri, 13 Oct 2017, Michael Felt wrote:
>> 
>>> On 13/10/2017 15:29, Michael Felt wrote:
>>> This verifies it is xauth related:
>>> 
>>> debug3: sending debug message: No xauth program; cannot forward with
>>> spoofing.
>>> 
>>> so, added an extra debug - and this is what I see:
>>> 
>>> debug1: session_input_channel_req: session 0 req x11-req
>>> debug3: setup_x11fwd: xauth_location == /usr/X11R6/bin/xauth
>>> debug3: sending debug message: No xauth program; cannot forward with
>>> spoofing.
>>> 
>> ...
>>> And, I expect noone from IBM has ever said anything - as they still use
>>> OpenSSH-6.0 as a base, although they are also using OpenSSH-7.1, both of
>>> which are not affected by the fix for OpenSSH-7.2.
>>> 
>> Or - MY error is more likely. By chance I must of had the fileset
>> bos.X11.config installed - so configure was able to find a value for xauth.
>> 
>> Now I know I need to add the configure option --with-xauth=/usr/bin/X11/xauth
>> 
>> Many thanks for the hints - to get this resolved!
> 
> I've also committed the packet.c diff to log debug messages, so this might
> be easier to spot in the future from server logs alone.
> 
> -d
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