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→Port forwarding SSH
* Create a new instance the same way as "router" but without the elastic IP. Call it ww. Name the network interface ww-nic and set a secondary private IP to 10.3.45.11
** We won't set it up as a web server in this lab, we just need something to forward SSH requests to.
* firewall:
** iptables diagram source: https://documentation.suse.com/sles/15-SP1/html/SLES-all/cha-security-firewall.html