[Home_Machine] <--> [Firewall] <--> [Internal] <--> [Web_Server]
Port:22 Port:22 Port:80
Port:443
Forward remote port to local host port:
ssh -R remote_port:local_host:local_port
e.g. [Internal]$ ssh -R 2222:localhost:22 [Home_Machine]
This opens a socket on [Home_Machine] and listens to 2222 port. Whenever connection made on [Home_Machine] 2222 port will be forwarded to [Internal] port 22. It opens a ssh connection door from [Home_Machine] to [Internal].
Forward local port to remote host port:
ssh -L local_port:remote_host:remote_port
e.g. [Home_Machine]$ ssh -p 2222 \
-L 443:[Web_Server]:443 \
-L 443:[Web_Server]:443 \
-L 80:[Web_Server]:80 localhost
This opens a socket on [Home_Machine] and listens to 80 and 443 port. Any connection to [Home_Machine] on these two ports will be forwarded to [Web_Server].
(ssh to port 2222 on localhost will be forwarded to 22 port on [Internal])
(ssh to port 2222 on localhost will be forwarded to 22 port on [Internal])
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