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→Port forwarding SSH
== Port forwarding SSH ==
Port forwarding is when an incoming connection to a particular port is not processed by the machine receiving the connection, but instead it's forwarded to a different machine. You can forward a port to the same port on another machine, or one port on the first machine to another port on the second.
We're going to set up iptables on router to forward incoming requests to TCP port 2211 to port 22 on ww.
This [https://documentation.suse.com/sles/15-SP1/html/SLES-all/cha-security-firewall.html Open Suse Documentation page] has a nice simple diagram of iptables: