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====== OpenSSH ======
===== Multiplexing =====
==== Configuration ====

<code - ~/.ssh/config>
Host *
  ControlMaster auto
  ControlPersist yes
  ControlPath ~/.ssh/control/%r@%h:%p
</code>

==== Controlling ====

<code bash>
# ssh -O ctl_cmd <server>
</code>

ctl_cmd:
  * check: check that the master process is running (returns PID if running)
    * Master running (pid=3292)
    * Control socket connect(/home/user/.ssh/control/user@server:22): No such file or directory
  * forward: request forwardings without command execution
  * cancel: cancel forwardings
  * exit: request the master to exit), and 
  * stop: request the master to stop accepting further multiplexing requests).



==== Dynamic Changes ====



==== Source & Links ====
  * Some infos are copied from the man page: [[http://man7.org/linux/man-pages/man1/ssh.1.html|man ssh]]