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Cc: feld@feld.me, freebsd-questions@freebsd.org
Subject: Re: ssh -X (X11 forwarding) not working from 6.1 to 8.1
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Eitan Adler <lists@eitanadler.com> wrote:

> > It still fails with the 6.1 system as the ssh client,
> > and works with the 6.1 system as the ssh server
>
> Is X11Forwarding yes set in the server config of the failing
> direction?

Both seem to be defaulted.

On 6.1:

  $ egrep -C 2 X11Forwarding /etc/ssh/sshd_config
  #AllowTcpForwarding yes
  #GatewayPorts no
  #X11Forwarding yes
  #X11DisplayOffset 10
  #X11UseLocalhost yes

On 8.1:

  $ egrep -C 2 X11Forwarding /etc/ssh/sshd_config
  #AllowTcpForwarding yes
  #GatewayPorts no
  #X11Forwarding yes
  #X11DisplayOffset 10
  #X11UseLocalhost yes
  --
  # Example of overriding settings on a per-user basis
  #Match User anoncvs
  #       X11Forwarding no
  #       AllowTcpForwarding no
  #       ForceCommand cvs server