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2003 server : adding an overseas notice, not sure how to set it up, two domains/one etc...

Posted on 2006-05-11
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THis is mostly theoretical question:

Here is what I have

4 sites in the US, all part of one domain, lets call it "COMPANY.local" , I have an 2003 exchange server for mail and my users have "user@COMPANY.com" email addresses. Basic setup

right now my DHCP hands out DNS addresses of my two AD intergrated DNS servers in the US, lets say they are DNS1 and DNS2

Here is what I want to do:

We are adding a new office overseas, they will have their own servers, one 2003 DC and one 2003 exchange mail server also setup as a DC.

I want these users to also have "user@COMPANY.com" email addresses.

I don't care what domain they log into, can be the same or different.

I want to make sure that when I Lose an internet connection (unlikely but possible) that they can still get online through their own DNS and function fine.

I'd like to setup a 3rd AD intergrated dns server, DNS3 , and also a DHCP server for their subnet which will give all clients the IP address of the DNS3 server

Question that I have:

Are there going to be any issues with this???

can they simply be part of my current COMPANY.local domain ?

can I have DHCP give them their own DNS servers IP and not ours without any issues ? Do I just setup a forwarded for any unrecognized name to go to their ISP's DNS server?

will my clients in US be able to access their servers and vice versa?

Also, how do I setup the mail server? Simply as another exchange server and keep their mailboxes in that information store while I keep the US mailboxes on the US exchange server?

if I'm making no sense then please tell me how you would do it, I want them to be their own and fucntioning separate site if the US site goes down (as much as possible), internet must remain working for them , mail would not be so critical.

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Question by:MartinCadek
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Mazaraat earned 2000 total points
ID: 16660604
"Are there going to be any issues with this??? "
--Usually the hardest part is getting the VPn working properly and latency issues

"can they simply be part of my current COMPANY.local domain ? "

--Yes.

"can I have DHCP give them their own DNS servers IP and not ours without any issues ? Do I just setup a forwarded for any unrecognized name to go to their ISP's DNS server? "

--Each site will have their own DHCP and DNS server(s).

"will my clients in US be able to access their servers and vice versa?"

--Yes.

"Also, how do I setup the mail server? Simply as another exchange server and keep their mailboxes in that information store while I keep the US mailboxes on the US exchange server? "

--You will setup a new exchange server at the remote site and configure routing connectors to make them talk together.

"I want them to be their own and fucntioning separate site if the US site goes down "

--It is critical that the sites are setup correctly in AD sites and services AND the rmeote DC is a global catalog holder.

The condensed summary of work you will need to do:

1.  The first step would be to setup a site-site vpn connection.
2.  at the remote site you can promote the server ( or install new one) as another DC in the domain, make sure replications is working.  
3.  In sites and services check that the server is also a global catalog holder, and configure the subnets to point to their DC's so users in each site go to their own DHCP/DNS server first.

4.  at the remote site, Install the exchange server in the domain and configure your routing groups.  
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by:MartinCadek
ID: 16660791
Great reply, I have just discussed this with several friends and we came to the same conclusions.

Thank you very much for your help!
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Expert Comment

by:Mazaraat
ID: 16660818
Glad to be of help, let su know if you have any issues during installation =)
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