Forward one or more ports from remote server to local host or other hosts accessible on the LAN. This is useful for making
local servers available from remote hosts. A sample application of this would be allowing a local web server to be accessed from
a host on aws with a static ip address.
ssh -p <port num> [-i remote-server-key.pem] remote-user@remote-server -R rport1:<lhost1>:lport1 -R rport2:<lhost2>:lport2 …