How To Enable NAT in Windows 2003 Server

I’m writing this tutorial on request of a valuable regular reader of Technodigits.
Situation: I am an administrator of a small company with 20 computers. I’m getting my internet services through a DSL connection. I’m using Microsoft technologies; hence, my server is Windows 2003 Server. I want to distribute internet to all the computers through the [...]

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First I’ll assign two IP addresses to my linux box (I’m not in favour of installing two ethernet cards when one can do the job). eth0 is my local IP interface and eth0:0 is my live IP interface.
Here’s how it goes on:
iptables –flush
iptables –table nat –flush
iptables –delete-chain
iptables –table nat –delete-chain
Setup IP forwarding and masquerating..
iptables –table [...]

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