Todd
Sat Sep 11 11:34:51 CDT 2004
You didn't read anything wrong. your router/firewall is segmenting the rest
of your network from the internet. That is what a router/firewall does.
You should have your network using private IP schemes like 10.0.x.x or
192.168.x.x, these are not internet routeable. The router/firewall NAT's
the addresses to internet. This lets you have one single public IP address
for as many server or workstations you want on your network. No one on the
internet knows of any of your machines, they talk only to the firewall.
You would need 2 nics if you were using the server to segment the network
from the internet, essentially making it the router.
It is better to use a firewall and maintain a strict set of ACL's to keep
the bad people out. A simple ACL to allow email in to the server would
basically allow any source address going to yourdomain.com on port 25 is
allowed to go to <mailserver IP>. this only allows port 25 traffic through
to that single IP. it can't go anywhere else. you would also have an ACL
for port 443 traffic from any source going to
http://mailserver.domain.com/exchange is allowed to go to <mailserverIP>.
this would allow OWA to work. Now there are very basic, i would tighten
them up to meet your needs.
Todd
"John Gilmore" <anonymous@discussions.microsoft.com> wrote in message
news:03ad01c4978f$bdde0c60$a401280a@phx.gbl...
> Is is me or did I read something wrong. I have single MS
> Windows 2003 Small Business Server. The server has a
> single LAN Adapter and connects to the Internet through a
> router/firewall. So the Router has local IP address that
> the Business Server uses as it's gateway to to the
> Internet.
>
> It use to be that you had to have two LAN adpaters to
> connect up an email server to the Internet with. However,
> I had heard with with the 2003 Small Business Server you
> could get away with only one? Is that right or is that
> totally wrong?
>
> When I run through the Internet setup Wizzard it asks me
> if I only have single LAN adapter and acts like that's ok
> until it starts the finalization process and then pukes
> and says their is network connection issue that is
> unresloved. However, Internet access works great when
> people log in ..... so I am not sure what is going wrong
> in the set up process.....any one set one of these up
> with just a single LAN adpater and can lend me a hand I
> would appreciate it...
>
> Thanks,
>
> John