I have set up a network with 25 workstations and 1 Windows NT Server v. 4.0
SP4.  The IP addresses are in the 192.168.0.1-192.168.0.30 range.  I have a
Cisco router that will connect this network via a T1 directly to the
Internet.  I have set up a Linux box with 2 NICs.  One of the NICs is
connected directly to the internal network and has an IP Address of
192.168.0.200, while the other NIC is going to be connected to the router
and will have the IP address that was assigned by my ISP, which we will say
is 123.45.67.89.  I have it configured so that the Linux box will allow the
workstations to access the Internet and that all seems to work great.

Here's my question.  There are two Windows 95 machines outside the firewall
that are going to have to get to the files on the NT Server.  They have IP
addresses of 12.34.56.78 and 79.  Is it possible to use port forwarding to
access these files?  My idea was to put an entry in the LMHOSTS file that
said that the 123.45.67.89 address was actually the NT Server.  Then, I
could add rules that would look for the two source addresses that I am going
to allow in, and forward those directly to my NT box @ 192.168.0.1.

Is this feasible?  Is it secure?  I have checked the FAQs and searched
DejaNews, but have not seen this particular scenario.  Any help or direction
will be greatly appreciated.

Ken Marshall



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