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Synchronize notes on ssh-connection multipexing with current state.

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tom 2018-10-31 20:22:41 +01:00
parent 6895ad0207
commit 1bae2be406
1 changed files with 11 additions and 8 deletions
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19
docs/src/cdist-best-practice.rst
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@ -13,15 +13,18 @@ See sshd_config(5) and ssh-keygen(1).
Speeding up ssh connections
---------------------------
When connecting to a new host, the initial delay with ssh connections
is pretty big. You can work around this by
"sharing of multiple sessions over a single network connection"
(quote from ssh_config(5)). The following code is suitable for
inclusion into your ~/.ssh/config::
is pretty big. As cdist makes many connections to each host successive
connections can be sped up by "sharing of multiple sessions over a single
network connection" (quote from ssh_config(5)). This is also called "connection
multiplexing".
Host *
ControlPath ~/.ssh/master-%l-%r@%h:%p
ControlMaster auto
ControlPersist 10
Cdist implements this since v4.0.0 by executing ssh with the appropriate
options (`-o ControlMaster=auto -o ControlPath=/tmp/<tmpdir>/s -o
ControlPersist=2h`).
Note that the sshd_config on the server can configure the maximum number of
parallel multiplexed connections this with `MaxSessions N` (N defaults to 10
for OpenSSH v7.4).
Speeding up shell execution