From owner-freebsd-security@freebsd.org  Tue Nov 10 11:16:56 2015
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From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no>
To: Bob Bishop <rb@gid.co.uk>
Cc: freebsd-security@freebsd.org,  freebsd-current@freebsd.org
Subject: Re: OpenSSH HPN
References: <86io5a9ome.fsf@desk.des.no>
 <261DDEE0-B792-4715-A8EF-27E491122BD2@gid.co.uk>
Date: Tue, 10 Nov 2015 12:16:47 +0100
In-Reply-To: <261DDEE0-B792-4715-A8EF-27E491122BD2@gid.co.uk> (Bob Bishop's
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Bob Bishop <rb@gid.co.uk> writes:
> Is removing HPN going to impact the performance of tunnelled X
> connexions?

I don't think so.  It mostly affects the performance of long
unidirectional streams (file transfers) whereas the X protocol, as far
as I know, is a bidirectional exchange of relatively short messages.  It
may make a difference for applications that transfer large textures...
I don't really know enough about the X protocol to say for certain, but
I am typing this in Emacs over a non-HPN SSH connection, and I regularly
tunnel Firefox between the same two machines (RHEL 7 desktop at work and
FreeBSD 10 desktop at home).

DES
--=20
Dag-Erling Sm=C3=B8rgrav - des@des.no