Comment on SSH tricksparentComments−yycom14y host *%* proxycommand ssh $(echo %h | cut -d%% -f1) nc $(echo %h | cut -d%% -f2) %p usage: ssh gateway%target−a3_nm14yAwesome. Here is another version to support chaining multiple gateways: Host *%* Proxycommand ssh $(echo %h | rev | cut -d%% -f2- | rev) nc $(echo %h | rev | cut -d%% -f1 | rev) %p usage: ssh gateway1%gateway2%target (Not very clean, improvements welcome.)−a3_nm14yA shorter version of the same thing: Host *%* Proxycommand bash -c "h=%h; ssh \${h%%\\%%*} nc \${h##*%%} %p" It would be shorter and cleaner if I knew a way to apply string operators on a constant string rather than defining the intermediate variable $h.−vidarh14yThat syntax gave me flashbacks to good old bang paths...−haridsv14yVery cool! Is there any security risk in running nc on the gateway this way?−ryan-c14yA more featureful version of that hack:https://github.com/ryancdotorg/ssh-chain
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Awesome. Here is another version to support chaining multiple gateways:
usage: (Not very clean, improvements welcome.)A shorter version of the same thing:
It would be shorter and cleaner if I knew a way to apply string operators on a constant string rather than defining the intermediate variable $h.That syntax gave me flashbacks to good old bang paths...
Very cool! Is there any security risk in running nc on the gateway this way?
A more featureful version of that hack:
https://github.com/ryancdotorg/ssh-chain