DNS: add external domain to internal server

How do you setup DNS so clients on the internal network can access internal hosted devices.
For example: Domain.Local clients try to go to mail.domain.com and are pointed to mail.domain.local.
JimNadeauAsked:
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MikeIT ManagerCommented:
Create a new forward lookup zone for domain.com and then create a new A record for Mail and point it to the IP you want.
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smckeown777Commented:
Basically just create new zone 'domain.com' on your internal server and populate it with A records for mail pointing to your internal IP's

What DNS server are you on?
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savoneCommented:
You can make an internal only DNS (split DNS) and/or use views in BIND.

What kind of servers are you using?

Read here:
http://en.wikipedia.org/wiki/Split-horizon_DNS
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Making Bulk Changes to Active Directory

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JimNadeauAuthor Commented:
There is only one service that is not hosted locally, and I can manually add that record. My only real concern was by adding the new forward lookup zone am I going to break something in AD?
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smckeown777Commented:
No, adding zone is fine, won't cause any harm

But if you only want the internal zone for mail.domain.com and there is also a www.domain.com for example. internal clients won't be able to get to www.domain.com(the external record I mean) without you also adding A record for www...
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MikeIT ManagerCommented:
You won't break anything.

But as smckeown777 you need to add A records for all things that are hosted on domain.com if you want to access them internally.
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JimNadeauAuthor Commented:
I am adding an 2010 exchange server, and I need to add autodiscover.domain.com, legacy.domain.com, mail.domain.com
I am also interested to know if I can link the new zone to AD. That way I can manage the new zone in only one server, or do I have to not link the zone to AD and go to each server to add and update the zone.
NewZone.png
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smckeown777Commented:
Yes that's also fine, go ahead with those settings and you are good to go...
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JimNadeauAuthor Commented:
I did not create the AD integrated zone. I just made the zone stand alone. I should not have to update the zone so after was created it should require maintenance. Besides I cheated. I copied the domain.com.dns file from the first server to the second and just use that copied file when creating the zone.
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