Basic Network design queries???

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Hi

Could anyone please give advice on the following:

A medium size business LAN is split into 4 subnetworks and each subnet has 2 dedicated servers. All 8 dedicated servers within the 4 subnets are kept in the same room. The business requires for security requires that the management and employees within the LAN have different access levels.

So, my question is this, in a windows environment using domain based access, would each subnet require its own dedicated domain controller? or could I have one dedicated domain controller amongst the 8 servers??

If each subnet needs its own domain controller does this mean there would have to be 8 domains in total for the 4 networks??

Can the eight servers be linked even though they're on different subnets?


Also, if using DHCP, for each subnet would I have to have one dedicated server per subnet or could I have one dedicated server on the LAN than could be used by all subnets??

Confused here any help appreciated

Thanks

 

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As far as I understand it (now I am still learning so I could be wrong) every server will need a domain controller as each one will need it's own authentication to be on the network.

 

no you dont need seperate domain controllers for each subnet, you just need a way to route traffic across the subnets i.e a router. Access permissions can be handled using group policy if you are just talking about standard file shares etc.

You can also use 1 dhcp server to service all the subnets as long as the router that is between them supports bootp / can act as a relay agent.

Finally you probably want two domain controllers as if you only have one and it goes pear shaped then you are in a rather large pickle.

Hope that helps

Jiggy

 

ah right I see thanks for correcting me.

 

Damn I wish Teh Interwebz had been around when I was young enough to get homework assignments...

 

Thanks for the help

Would it be right in saying then that it is possible to have all dedicated servers for the LAN on one subnet if the interconnecting router had 4 interfaces each with one subnet?

 

Just read your post Sparky

the two groups just need seperating on the network for security purposes.....

 

Sparky


you can read text book after text book thoroughly but there are grey areas as you'd agree so the forum provides a means of support from you experts helping me understand

cheers mate

 

All uni/college assignments sound the same nowa days. Really what they should do is actually tell them to design then make it!

 

you only *need* one domain controller.

However, it's good practise to have more than one, so it can replicate the Active Directory database.