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There are times you may want to set up a system to act as a go between for a network and the Internet.
This ‘go between’ is a system that acts as a router and is designated as a gateway for the systems on a network.
Let’s look at this in more detail.
System Layout
We start with a regular layout of a network with one or more systems. We really don’t want to open the whole network up to the Internet, so we have a system that will act as a router between the two networks, the public…
https://www.linux.org/threads/lfcs-–-turning-a-system-into-a-router.41375/
