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bug#19702: 25.0.50; Tramp with ssh not working with openssh 6.7 while wo
From: |
Michael Albinus |
Subject: |
bug#19702: 25.0.50; Tramp with ssh not working with openssh 6.7 while worked with 6.6 |
Date: |
Mon, 02 Feb 2015 10:20:34 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) |
Filipp Gunbin <fgunbin@fastmail.fm> writes:
> Michael,
Hi Filipp,
> Release notes for openssh 6.7 [1] tell:
>
> * ssh(1): Add a %C escape sequence for LocalCommand and ControlPath
> that expands to a unique identifer based on a hash of the tuple of
> (local host, remote user, hostname, port). Helps avoid exceeding
> miserly pathname limits for Unix domain sockets in multiplexing
> control paths; bz#2220
>
> I changed `tramp-ssh-controlmaster-options' as follows:
>
> (setq tramp-ssh-controlmaster-options "-o ControlPath=%%C -o
> ControlMaster=auto -o ControlPersist=no")
>
> And it started working.
I have committed a patch to the emacs-24 branch which uses %C in
ControlPath if possible. Could you, pls, check? I have no openssh 6.7
installed, so I cannot test myself.
> The original value contained "%t.%%r@%%h:%%p". %r, %h and %p could be
> substituted by %C as the above doc says. But what about %t? It's a
> temporary file as I understand and is substituted by Tramp, not by ssh.
> Is it critical that it should be present in the resulting file name?
In the past there were problems when Tramp used the same ControlPath
like ssh connections started/stopped outside Emacs. That's why Tramp
uses its own one.
> Filipp
Best regards, Michael.
- bug#19702: 25.0.50; Tramp with ssh not working with openssh 6.7 while worked with 6.6,
Michael Albinus <=