I have a Windows 2003 native domain with 2008 R2 PDC and Secondary DCs and a 2003 SP2 DC that is about to be decommissioned. All FSMO roles are on the PDC (my boss's decision) and all DCs are Global Catalogs.
When I DCDIAG the report says that:
DNS delegation for the domain _msdcs.domain.local. is operational on IP 192.168.x.xx
TEST: Delegations (Del)
Delegation information for the zone: domain.local.
Delegated domain name: _msdcs.domain.local.
DNS server: old_dc.domain.local. IP:192.168.x.xx [Valid]
where 192.168.x.xx is the old 2003 DC. 2003 DC was an SBS server and used to be the primary (only) DC and used to run Exchange 2003 (now uninstalled).
* What is the DNS Delegation for (we have no child domains)?
* Do I need to take any action regarding the DNS delegation before I DCPROMO it to make it just a member server?
* If so what do I need to do?
Help much appreciated.