No. I'm doing it here. Send me an e-mail if you like to get my config as a
sample.
> We have a Web server under NT in our LAN. How I can do it visible from
> Internet via Linux box? - Do I need a second IP address?
Not necessarily. You need to install a proxy server on the gateway,
listening on port 80 and redirecting everything to the NT box. But why the
hell would you want to run a web server on the NT box when you have a
"real" OS in the network? Just kidding. As the proxy server, you could use
the free TIS firewall toolkit. It has a number of proxy daemons.