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July 25, 2018 10:42
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ssh jump host forwarding config
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| # | |
| # see also: | |
| # https://en.wikibooks.org/wiki/OpenSSH/Cookbook/Multiplexing | |
| # http://blog.scottlowe.org/2015/12/11/using-ssh-multiplexing/ | |
| # | |
| # you may want to use connection multiplexing on the jumphost | |
| Host jump-host | |
| Hostname jump-host.example.com | |
| ForwardAgent yes | |
| ControlPath ~/.ssh/cm-%r@%h:%p | |
| ControlMaster auto | |
| ControlPersist 10m | |
| # this can also be chained, i.e. local->target_host->target_host2->... | |
| Host target-host | |
| ProxyCommand ssh -W %h:%p jump-host | |
| # one-liner: | |
| # ssh -o ProxyCommand="ssh -W %h:%p proxy_host" target_host | |
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use this in your client ssh config in ~/.ssh/config
the multiplexing will set up one persistent connection to the jump host (that will remain for up to 10 min when unused)
multiple hosts with ProxyCommand statement can be chained