Best way to configure new MPLS network

I want to ask a rather difficult question about the best way, and most efficient way to configure DNS (and the network in general) for the following network.

4 Locations will be bridged with MPLS and each connection will have a 1.5mbps connection back to the host location (Location A). Bandwidth for internet will be fed through Location A.
Location A) 192.168.1.x
Location B) 192.168.2.x
Location C) 192.168.3.x
Location D) 192.168.4.x

Location A has a server running Active Directory for authentication as well as its acting as a fileserver. MPLS routers will handle DHCP, but whats the most effective way and efficient way to ensure that all locations get speedy access to the server residing on Network A.

Also, is it possible for Windows Server 2003 to replicate (in both directions) a fileserver to network attached storage devices that would reside at Location B, Location C, and Location D to minimize bandwidth usage over the network.

I have my own ideas, but I wanted to see what others out there would recommend. Thanks for your time!

-MirageAsked:
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Chris DentPowerShell DeveloperCommented:

> but whats the most effective way and efficient way to ensure that all
> locations get speedy access to the server residing on Network A.

Do all sites have DNS servers? If they do, I would configure B, C and D to forward unresolved requests back to A (since your Internet connection is there).

If you're running AD then AD Integrated Zones would still be the best way to replicate any local DNS zones between sites.

Otherwise there's not a great deal to configure there is there? Your MPLS links will take care of transport between locations, speed is a factor of that more than anything else.

> network attached storage

I guess they don't run Windows as an OS? That would rule out DFS which would have been my first choice as the R2 version can do block-level comparison / replication.

Anything else is likely to depend on the NAS platform I would imagine, not that I have any particularly good suggestions there.

Chris
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-MirageAuthor Commented:
More detail would have been nice.
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