Hi all, i am setting up a virtual lab on my hyper-v host. I have created two internal virtual networks and configured RRAS on the hyper-v host to route between the virtual networks. All pings and seems to work nicely. i have created a DC in one virtual network but i now want to create another DC in the other virtual network but on a child domain of the first forest root domain. Do i need to do anything with sites and services or domains and trusts to get this to work? I tried to create the child domain last night but i got a dns error when i tried to join the child domain to the forest root domain. I didnt spend much time troubleshooting to be honest and im on my break at work so i thought i would try and get a heads up on it for tonight when i try again. Thanks

i have created a DC in one virtual network but i now want to create another DC in the other virtual network but on a child domain of the first forest root domain. Do i need to do anything with sites and services or domains and trusts to get this to work? No, there is no required configuration on domains and services or domains and trusts snap-in. You should just make sure that DNS resolution is made correctly and that needed ports are opened: http://social.technet.microsoft.com/wiki/contents/articles/584.active-directory-replication-over-firewalls.aspx For DNS resolution, make the new server points to the old one as primary DNS server and validate that it can resolve DNS records using nslookup. Once done, run dcpromo to create a new child domain. The trust relationship will be created automatically. This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Microsoft Student Partner 2010 / 2011 Microsoft Certified Professional Microsoft Certified Systems Administrator: Security Microsoft Certified Systems Engineer: Security Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows 7, Configuring Microsoft Certified Technology Specialist: Designing and Providing Volume Licensing Solutions to Large Organizations Microsoft Certified IT Professional: Enterprise Administrator Microsoft Certified IT Professional: Server Administrator Microsoft Certified Trainer

i have created a DC in one virtual network but i now want to create another DC in the other virtual network but on a child domain of the first forest root domain. Do i need to do anything with sites and services or domains and trusts to get this to work? No, there is no required configuration on domains and services or domains and trusts snap-in. You should just make sure that DNS resolution is made correctly and that needed ports are opened: http://social.technet.microsoft.com/wiki/contents/articles/584.active-directory-replication-over-firewalls.aspx For DNS resolution, make the new server points to the old one as primary DNS server and validate that it can resolve DNS records using nslookup. This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Microsoft Student Partner 2010 / 2011 Microsoft Certified Professional Microsoft Certified Systems Administrator: Security Microsoft Certified Systems Engineer: Security Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows 7, Configuring Microsoft Certified Technology Specialist: Designing and Providing Volume Licensing Solutions to Large Organizations Microsoft Certified IT Professional: Enterprise Administrator Microsoft Certified IT Professional: Server Administrator Microsoft Certified Trainer Once done, run dcpromo to create a new child domain. The trust relationship will be created automatically. This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Microsoft Student Partner 2010 / 2011 Microsoft Certified Professional Microsoft Certified Systems Administrator: Security Microsoft Certified Systems Engineer: Security Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows 7, Configuring Microsoft Certified Technology Specialist: Designing and Providing Volume Licensing Solutions to Large Organizations Microsoft Certified IT Professional: Enterprise Administrator Microsoft Certified IT Professional: Server Administrator Microsoft Certified Trainer

Hi hyperNoddy, Thanks for posting here. Yes, we dont have to set site or subnet, just make sure the DC of child domain is using the parent domain DC as the preferred DNS server or we can replicate the current AD integrated DNS zone to the new child DC so that it can set to use itself as the preferred one. Please also make sure the connectivity between two virtual networks is OK (routing in RRAS). Checklist: Creating a new child domain http://technet.microsoft.com/en-us/library/cc779539(WS.10).aspx Thanks. Tiger LiTiger Li TechNet Community Support

Hi hyperNoddy, Thanks for posting here. Yes, we dont have to set site or subnet, just make sure the DC of child domain is using the parent domain DC as the preferred DNS server or we can replicate the current AD integrated DNS zone to the new child DC so that it can set to use itself as the preferred one. Please also make sure the connectivity between two virtual networks is OK (routing in RRAS). Checklist: Creating a new child domain http://technet.microsoft.com/en-us/library/cc779539(WS.10).aspx Thanks. Tiger LiTiger Li TechNet Community Support