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two SBS servers on the same physical network and IP range

Hi

Can i have two SBS servers on the same physical network and same IP range as long as thet are different domains?

I know if i migrate from one to another I get 21 days before the source server starts shutting down but I want to install a new doamin so are there any issues/limitations?

Obviously one will need DHCP turned off.

THanks
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George-
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George-
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Cliff GaliherCommented:
From a purely technical perspective, yes. But from a practical perspective the answer is usually no.

As you already mentioned, DHCP cannot run on both servers. But with DHCP running on one server, you'll get all clients getting the same DNS settings. Which will break one of the domains. You can manually configure DNS, but you still will have issues with anything that uses broadcast...like upnp.

Plus you really have to ask yourself why you would do this. If this is one business, you will be breaking licensing even if it isn't technically enforced. You'd be far better off setting up a second server as a standard edition, not SBS. That is legal and less expensive.

If this is two businesses, what happens when a computer from business A gets infected with a virus and infects all the computers of business B? Who is liable? Chances are you would be on the hook for not doing proper due diligence. There is a legitimate lawsuit there.

And who owns the equipment? If they are on the same network then they are plugged into the same switches? Does business A own them or business B? And the router? And the firewall? Somebody is getting short-changed and ultimately when one of them figure that out, they'll come back after you.

In short, there is never a good reason to do this, even if you can. There are business and ethical reasons to consider. Just don't do it.
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George-Author Commented:
Hi

Basically I want to just test building the new SBS before actually doing it "for real" and to time things like installing Exchange SPs etc.

I need it on the same IP range so i can download updates.

Long term they will be coming off one SBS and on to another and the original will be retired so there will only be one SBS in use.

What i didn't want is for it to start efecting their live system.
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Cliff GaliherCommented:
Having a test system on a live network is definitely a bad idea for many many reasons. Ideally I'd have a totally isolated test network. If that cant be done, I'd at least segregate into VLANs. Any network edge device worthy of protecting a business supports VLANs so giving two discreet networks internet access for updates would still be Trivial. Worst case, test in a VM on an isolated virtual network.

I have a test lab running often for testing new server patches, new versions of software, troubleshooting, etc. Once you set one up, you'll find it useful well beyond this one use. There just isn't a reason to be testing on a live network.
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George-Author Commented:
Good advice
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