Active DIrectory at New Site

Hi guys,

I have 2 sites with a domain controller at each site.

I added a new DC at Site A, and it sees the other DC and syncs fine. Now the other DC at Site B, in AD sites & services, it doesnt see it.

Shouldn't it auto add and replicate to it?
LVL 4
Cobra25Asked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Seth SimmonsSr. Systems AdministratorCommented:
it will if that IP network is defined for the site; else it won't appear there
is there a subnet created for it and associated with site b?
0
Cobra25Author Commented:
Indeed there is.
0
Dan McFaddenSystems EngineerCommented:
Can you run a DCDIAG and post the results?

from elevated command prompt:  dcdiag /c /v

Dan
0
Ultimate Tool Kit for Technology Solution Provider

Broken down into practical pointers and step-by-step instructions, the IT Service Excellence Tool Kit delivers expert advice for technology solution providers. Get your free copy now.

Cobra25Author Commented:
DCdiag looks good, except its throwing an error with another DC thats on the same subnet?

Starting test: Replications
   REPLICATION LATENCY WARNING
   ERROR: Expected notification link is missing.
   Source DC1
   Replication of new changes along this path will be delayed.
   This problem should self-correct on the next periodic sync.
0
Cobra25Author Commented:
ANy update on this guys?
0
Dan McFaddenSystems EngineerCommented:
You need to verify the tcpip config and specifically you should check how DNS is configured.

DNS service should be running on a specific IP address, not 127.0.0.1 or all available.  In the ipconfig, make sure the each DC points to another DC as primary and itself as secondary.

Here is a link to the oft referenced best practice article.

Link: https://abhijitw.wordpress.com/2012/03/03/best-practices-for-dns-client-settings-on-domain-controller/

After this has been done, run an ipconfig /registerdns.  Restart the netlogon service.

If the issue still persists, post the dcdiag results please.

Dan
0
Cobra25Author Commented:
Okay so my 2 servers in the same subnet/site are looking good

Now i have a remote site/subnet what should i do for that DC to create the connections?
0
Dan McFaddenSystems EngineerCommented:
Have you created a new site in AD for the other physical location?

In AD Sites and Services, create a subnet definition for the network address range at the other site, then create a new site, name it appropriately and add the newly defined subnet to the new site.

Dan
0
Cobra25Author Commented:
Yes, i already have it there and it was replicating. Here is how it is setup in AD Sites/Services, please let me know best practices:

Site A (HQ)
NTDS Settings
DC1 --> DC2, DC3
DC2 --> DC1
Site (Remote Site)
DC3 (empty)
0
Dan McFaddenSystems EngineerCommented:
At the remote site, there should be a site link between DC3 and DC1.

Dan
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Cobra25Author Commented:
Sorry Dan, i double checked:

Here is the correct one:

Site A (HQ)
DC3 - NTDS - DC1, and DC5
DC1 - NTDS - DC3

Site B (Remote)
DC5 - NTDS - I just added DC1 here, should i add DC3 also?

Do the remote site links have to be created manually?
0
Dan McFaddenSystems EngineerCommented:
Yes, you need to define sites and the links between sites.

Dan
0
Cobra25Author Commented:
OKay id id that, i think it should be OK, ill confirm.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Active Directory

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.