Remote (CentOS 8) X11 clients stop spawning on local (FreeBSD 12) X11 server over ssh after some time

[parv/freebsd]

On Sun, Feb 28, 2021 at 8:18 PM parv/freebsd wrote:

I had started ssh -X connection 2+ days ago in X11 on FreeBSD 12-STABLE to
> CentOS 8.
> When I tried to run Firefox (on CentOS), it did not start & blurted ...
>
>   Unable to init server: Broadway display type is not supported:
> localhost:13.0
>   Error: cannot open display: localhost:13.0
>
...

So, "ssh -vv -X" shows "Rejected X11 connection after ForwardX11Timeout
expired",
I do not see that option in /etc/ssh/ on CentOS or FreeBSD. Hold on ...

This ...


https://security.stackexchange.com/questions/147293/openssh-is-setting-a-long-forwardx11timeout-better-than-forwardx11trusted

... points to ...

  https://github.com/openssh/openssh-portable/commit/1ab6a51

... which makes "ForwardX11Timeout" to be ssh client option. On to testing
...


- parv

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