![]() ![]() You can learn how to do this with our guide on Ubuntu 20.04 initial server setup guide. On each of these machines, you will need to set up a non- root user account with sudo privileges. Two Ubuntu 20.04 servers setup in the same datacenter with private networking enabled.To follow along with this guide, you will need: This is useful if you’ve configured a private network, but still want to allow certain traffic inside through a designated gateway machine. In this tutorial, we’ll demonstrate how to use iptables to forward ports to hosts behind a firewall by using NAT techniques. As this process modifies the destination of the packet in-flight, it is considered a type of NAT operation. Port forwarding is the process of forwarding requests for a specific port to another host, network, or port. A host that implements NAT typically has access to two or more networks and is configured to route traffic between them. ![]() Usually, this is used to allow traffic to transcend network boundaries. NAT, or network address translation, is a general term for mangling packets in order to redirect them to an alternative address. ![]()
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