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Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!news.uwa.edu.au!classic.iinet.com.au!news.uoknor.edu!news.ecn.uoknor.edu!paladin.american.edu!gatech!howland.reston.ans.net!agate!news.mindlink.net!vanbc.wimsey.com!ddsw1!not-for-mail 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 ---------------------------------------------------------------------- ICBM address: | "Thus it is said if you know them and know 42 07 39 N/87 49 44 W | yourself, your victory will not be imperiled. For PGP key finger: | If you know Heaven and you know Earth, your chilton@mcs.com | victory will be complete." - Sun Tsu ----------------------------------------------------------------------