Just a quick sanity check / brain storm.
I have taken over the care of a network with the plan of scrapping their old nasty exchange infrastructure.
192.168.0.x/24 = HQ (companyuk.local)
192.168.1.x/24 = NEW COLO (additional site to companyuk.local)
x.x.x.x = OLD COLO (Public address only) - Completely separate site AD (company.co.uk)
The old colo contains an Exchange 2003 server, New colo contains an Exchange 2010 server which we will be migrating accounts to.
I want to set up a trust between the two for migration purposes.
Since company.co.uk (the actual domain name, not the AD domain name on the exchange 2003 box) is also used for a website and various portal/crm which are located on another box and used internally, what problems am I going to face by creating a trust?
Can I create the trust without having the zone file for company.co.uk ?
What issues am I likely to face?