*BSD News Article 44540


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From: chilton@MCS.COM (Christopher Hilton)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Building network with private IP addresses
Followup-To: comp.unix.bsd.freebsd.misc
Date: 24 May 1995 10:13:56 -0500
Organization: The Infobahn's Vince Lombardi Reststop
Lines: 46
Message-ID: <3pvifk$soe@Mars.mcs.com>
References: <Pine.BSD.3.91.950523115231.24916B-100000@brc.minsk.by> <3pt672$sfd@silicon.eppet.pt>
NNTP-Posting-Host: mars.mcs.com

In article <3pt672$sfd@silicon.eppet.pt>,
Joao Neves Cabral <jcnc@silicon.eppet.pt> wrote:
>Alexey Demianenko (a.d.@brc.minsk.by) wrote:
>You can for example:
>
>Give private IP addresses to the DOS boxes (and other computers that
>you don't want on the net). Check the RFC (which I can't remember the
>number right now) for the oficial private IP numbers (these numbers
>shouldn't be routed in the Internet, so there is no risk of
>conflicting with other existing ones).
>
>Connect your server to the outside world using an oficial recognizable
>IP address (the server would have at least two IP numbers, the public
>and the private one).
>
>TCP/IP applications from DOS would only have access to the inside
>network.
>
>Install CERN's httpd with proxy support on your server.
>
>Configure DOS workstations netscapes to query the proxy server, and
>you have worldwide WWW, Gopher, Wais, FTP, ... on these boxes with Netscape
>without having them on the net. You can use other browsers such as
>Mosaic which also support proxy.
>
>You can then install pop3 and client-based programs to use email.
>

The RFC is 1597 but if you only need the network numbers look inside
the /etc/hosts file from any FReeBSD 2.0R or later they are listed in
the comment fields. Th only other thing I would add is that if you
throw wome decent firewall code on this or use the new dial on demand
ppp stuff that Jordan's talking up you'd have a real nice internet
access box.

C.

-- 
Christopher Sean Hilton	                       E-mail: chilton@mcs.com
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