Create a connection that can forward one or more ports to a remote server.
This is useful if the server is remote (e.g. not on the LAN), also, this can be used to bypass restrictive firewall rules.
Requirements:
ssh server on the remote server
ssh client
valid userid/password or server key in various formats (e.g. RSA, ECSDA, etc.)
ssh -p <port num> [-i remote-server-key.pem] user@remot-server -L <local port>:<interface>:<remote port> ...