Why not link your MS-mail/SMTP gateway to your external pc via a null
modem cable. I think that can be done. and don't THINK it can be hacked.
That way you will only lose instant connectivity when you disconnect your
server from the net. The only thing is you'll probably need an NT version
From: firewalls-owner[SMTP:firewalls-owner @
Sent: 30 January 1996 10:56
Subject: MS-Windows PC as an email gateway
My company is looking at a quick way of getting on the Internet without
investing in a lot of hardware and engineering effort. One idea, which
has management interested, is to work with a local ISP to get a dedicated
line, either ISDN or 28.8, to tie a PC running MS-Windows or MS-Windows
NT to the Internet.
This PC would be an FTP server and WWW server. This PC would only be
connected to our office network _after_ it had been disconnected from the
ISP connection. Thus, no need for a fire wall. (So we can transfer files
back and forth.)
(We are expecting the number of hits on both server to be in the single
digits each day at this time.)
This same PC would be used for out-going access and would require the
individual wanting to 'surf' to go to the PC.
As a short term solution is this seems pretty good. The only problem is
that we also want e-mail. Today we use UUCP every couple of hours, but
there is a big push to have immediate access to incoming and immediate
outbound email, but on the internal network.
Is it possible to use MS-Windows or NT as an email-only gateway? I am
assuming we would need a second lan card or a router?
What security issues should I look out for? I assume that not allowing
the PC to be a telnet server is a start and only exposing the internal
email server to the PC is also a good idea.
Thanks in advance for any help or other suggestions,
Christopher M. Curtin Bradley Ward Systems,
us 750 Hammond Drive,
Atlanta, Ga 30328