Multiple SSH Port Forwardings

This post by Dillon Hafer is one of my favorite remote-work tricks. Today I learned more about this part of the SSH configuration.

Multiple forwardings can be set; in a setup where port 3000 and port 9000 are important, we can forward both:

# ~/.ssh/config

Host example
  Hostname     example.com
  LocalForward 3000 localhost:3000
  LocalForward 9000 localhost:9000

Ports 3000 and 9000 will then be forwarded from the remote host. For a one-time solution, we can also add more via the command line:

$ ssh example -L 4000:localhost:4000

Combining this command and the configuration file above, ports 3000, 9000, and 4000 will be forwarded.

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