Re: Can't forward X11 apps over ssh since migrating to 13-CURRENT

> On 22 Sep 2020, at 08:06, Patrick McMunn <doctorwhoguy_at_gmail.com> wrote:
> I don't know if it's just coincidental or if it's because of some change in
> 13-CURRENT, but I recently migrated from 12.1-STABLE, and now I am unable
> to forward X11 apps over ssh. The only app I was accustomed to running this
> way was Handbrake. It worked fine before, but now i get this:
> 
> $ ghb
> Unable to init server: Could not connect to 127.0.0.1: Connection refused
> 
> (ghb:87219): Gtk-WARNING **: 13:12:41.281: cannot open display:
> 
> I have tried other apps like Wireshark and even xclock just to see, but
> they won't work either. Has anyone else had problems with X11 forwarding on
> 13-CURRENT? If it's working for everyone else, at least I can know it's
> probably not 13-CURRENT's fault, and I need to look elsewhere for the
> cause. And yes, my sshd_config has it enabled. It worked fine before, and I
> made sure to keep the same config.

What is the value of DISPLAY? (ie echo $DISPLAY)

Is sshd listening on that port? eg..
[test 3:36] ~> echo $DISPLAY
localhost:11.0
[test 3:36] ~> sockstat|grep 6011
radar    sshd       5414  8  tcp6   ::1:6011              *:*
radar    sshd       5414  9  tcp4   127.0.0.1:6011        *:*

--
Daniel O'Connor
"The nice thing about standards is that there
are so many of them to choose from."
 -- Andrew Tanenbaum