How To Forward Ports through a Linux Gateway with Iptables

**How To Forward Ports through a Linux Gateway with Iptables**

Introduction NAT, or network address translation, is a general term for mangling packets in order to redirect them to an alternative address. Usually, this is used to allow traffic to transcend network boundaries. A host that implements NAT typically has access to two or more networks and is configured to route traffic between them. Port forwarding is the process of forwarding requests for a specific port to another host, network, or port. As this process modifies the destination of the packet in-flight, it is considered a type of NAT operation...

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