Re: Dual NIC vs Single NIC

Joe <Joe@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
In the past Most of my systems have been dual NIC usually with ISA
but due to many reasons I am now considering going to a single NIC
and moving away from ISA.

Currently with my existing setup, if the SBS server is down, for what
ever reason, my customers can't even get to the internet.

Yes they can.....they just can't resolve names :)

If I had a second member server set up as the backup DC, a single NIC
SBS server, and a hardware firewall wouldn't that allow my customer
to log on and access the internet if the SBS server was offline
temporarly? I would still want the SBS server to run the DHCP and DNS
roles but would assume that would not matter as long as the SBS
machine was not down for more than a few hours at a time.

Yes. If you have another DC running AD-integrated DNS, and your client
workstations have the secondary DNS server listed, they should work.

The above seems logical to me, but then since I have not done it I am
checking for any "gotchas" lying around that I might not be aware of.

By the way I would be running SBS2003R2 on such an install that would
assist me in the licencing issue of the second server which would be
running server 2000 or 2003 as a member of the SBS box.

You'd need to buy Windows 2000 or 2003 but I believe you wouldn't need
additional CALs.

That all being said, if you're having regular problems with your SBS box
going down, I'd rather address those - add as much redundancy to the server
hardware as you can. That would be a better use of money, in my opinion,
although it's true that outside of SBS, it's always recommended to have more
than one DC.


Joe



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