Short for '''Network Address Translation'''.

[IP] trick used to hide the details of a host or network behind a front-end machine, typically a firewall.

Also used to multiplex a single IP address (provided by an internet service provide),
allowing the IP address to be shared by a small network (such as a home network or small business network).
Some ISPs charge a lot more to dedicate a range of IP addresses instead of a single one,
and NAT lets you get by with just a single one.

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