openssh bugs - Aug 2019 - [Bug 3060] New: Keep multiplexer around while port forwardings are being used

https://bugzilla.mindrot.org/show_bug.cgi?id=3060

            Bug ID: 3060
           Summary: Keep multiplexer around while port forwardings are
                    being used
           Product: Portable OpenSSH
           Version: 8.0p1
          Hardware: Other
                OS: Other
            Status: NEW
          Severity: enhancement
          Priority: P5
         Component: ssh
          Assignee: unassigned-bugs at mindrot.org
          Reporter: bugzilla.mindrot.org at pobox.madduck.net

Right now, if I add a port forward to a multiplexed ssh shell session,
and I then exit the shell session, the port forward disappears.

Would it be possible to have the port forward stay around while it's in
use? E.g. until there's been no traffic forwarded in a configurable
number of seconds?

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Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |djm at mindrot.org

--- Comment #1 from Damien Miller <djm at mindrot.org> ---
I think ControlPersist (added in OpenSSH 5.7) does what you want.

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https://bugzilla.mindrot.org/show_bug.cgi?id=3060

--- Comment #2 from martin ? <bugzilla.mindrot.org at pobox.madduck.net>
---
It sounds like it should, Damien, but it doesn't. I'm using the
Syncthing UI across the port forward, and there is constant traffic,
but after the 30s I configured, the connection goes down.

I'll try to come up with a reproducible test case?

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martin ? <bugzilla.mindrot.org at pobox.madduck.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |WORKSFORME

--- Comment #3 from martin ? <bugzilla.mindrot.org at pobox.madduck.net>
---
Of coursw, now that I am trying to reproduce the problem, it's all
working as you say, Damien. This is ridiculous, because I witnessed
this not working a couple of times, or else would not have filed this
bug report.

Anyway, closing for now until I can get a bit closer to the problem.

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Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

--- Comment #4 from Damien Miller <djm at mindrot.org> ---
closing resolved bugs as of 8.6p1 release

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