Need to move 2 DCs to different existing subnet to keep AD from tombstoning
i have a WAN location that will be offline for more than 60 days that have their own DCs. i had them moved and have personnel ready to connect my 2 DCs at a different existing location/subnet, but i need to know the correct procedure to bring them online at a different subnet and ensure they replicate to give the site more time to come online. i ultimately will place them back at the original location. i have Dell servers so i can have local personnel change the DRAC IP config info in the BIOS and i can use a direct connection DRAC remote access console session to access it.
what steps do i need to do/ensure is done to make this happen? (sites and services, any considerations, etc). thank you.
what steps do i need to do/ensure is done to make this happen? (sites and services, any considerations, etc). thank you.
ASKER
unfortunately i need to use an existing subnet in AD Sites and Services, as directed by my senior guys. this is why i'm wondering the best steps to add them to an existing subnet in sites and services.
also - i'll be going in while it's off the network through the remote access maintenance port (DRAC) in a console session without it being on the network to change the IP config so the primary NIC will then be connected/accessible - can i log into a DC using cached credentials when it's off the network? or cause it's a DC will it not let me do it cause it's not connected to the network/domain/Active Directory? i know DCs can be finicky, which is why i ask. i've had an issue in the past with a member server and was forced to use the local admin through the DRAC console session, but of course a DC doesn't have a local admin. will it let me do it?
also - i'll be going in while it's off the network through the remote access maintenance port (DRAC) in a console session without it being on the network to change the IP config so the primary NIC will then be connected/accessible - can i log into a DC using cached credentials when it's off the network? or cause it's a DC will it not let me do it cause it's not connected to the network/domain/Active Directory? i know DCs can be finicky, which is why i ask. i've had an issue in the past with a member server and was forced to use the local admin through the DRAC console session, but of course a DC doesn't have a local admin. will it let me do it?
If the network is unplugged you should be able to logon without having to change the IP address prior the network plug should be not be plugged into the the LAN network cards. You can have the DRAC card plugged in this should be fine.
You can use the existing subnet I was thinking that you were creating a new subnet just for these DCs.
You can use the existing subnet I was thinking that you were creating a new subnet just for these DCs.
ASKER
so, log in through the DRAC console and change the IP info, plug up the primary NIC, log in normally and flush/register dns and run a dcdiag /fix and the DC will be good to go after replication with the hub site? it will move itself to the right subnet in sites and services? nothing else is needed?
You will need to move the DC when changing the subnet,
ASKER
so, i should - in this order:
1. change the local ipconfig for both DCs
2. move the DC server objects to the new site location (which is the new subnet of course) in sites and services and force replication between hub site and new site location
3. bring new DC online
4. do flush/register DNS and dcdiag /fix
that order sound like it would work?
1. change the local ipconfig for both DCs
2. move the DC server objects to the new site location (which is the new subnet of course) in sites and services and force replication between hub site and new site location
3. bring new DC online
4. do flush/register DNS and dcdiag /fix
that order sound like it would work?
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ASKER
okay, i'll try it. thanks.
Run ipconfig /flushdns, ipconfig /registerdns, and dcdiag /fix.
I would create a new subnet to keep these servers in. I would do everything you do when you put in a new site with new DCs. Even though these servers will go back you should always follow procedure like they would be a new DC and site.