[X2Go-User] X2Go fails to connect when SSH config contains multiple jump hosts

[Konrad, Martin]

Hi Ulrich,
Your comments pointed me in the right direction. The trick is indeed to
use "ProxyCommand" instead of the more modern "ProxyJump" which doesn't
seem to be supported by X2Go/libssh, yet.

On my Ubuntu 20.10 machine the following worked for me:

Host foo
ForwardAgent	yes
ProxyCommand	ssh -YJ user1 at first.example.com,user2 at second.example.com -W
%h:%p user3 at foo.example.com

Users on older machines might want to check if their SSH client supports
the -J argument. If it's not supported a carefully crafted chain of ssh
invocations might be required.

Thanks a lot!

Martin

-- 
Martin Konrad
Facility for Rare Isotope Beams
Michigan State University
640 South Shaw Lane
East Lansing, MI 48824-1321, USA
Tel. 517-908-7253
Email: konrad at frib.msu.edu