I have a single forest Active Directory domain, called DOMAIN.COM.
AD Site 1 - 10.10.1.0/24 subnet SITE1DC1-VM SITE1DC2-VM SITE1-DFSR-VM SITE1PC1 SITE1PC2 SITE1PC3 ... SITE1PCN AD Site 2 - 10.10.2.0/24 subnet SITE2DC1-VM SITE2DC2-VM SITE2-DFSR-VM SITE2PC1 SITE2PC2 SITE2PC3 ... SITE2PCN AD Site 3 - 192.168.3.0/24 subnet SITE3DC1-VM SITE3DC2-VM SITE3-DFSR-VM SITE3PC1 SITE3PC2 SITE3PC3 ... SITE3PCN
I need some explanation in how the Active Directory works when users access DFS-Replicated File share or ping-ing the internal AD DOMAIN.com name.
The issue that I'm facing:
When the users in Site 1 trying to access the file servers \domain.com\DFSR\domain\Data, each user in the same office locations are getting the files from different file servers, despite their IP address are the same subnet?
When I ping the DOMAIN.com from the same floor or users PC internally, why the response is coming from different Domain Controllers from SIte-1, Site-2 and sometimes Site-3?
Why this strange behaviour of Active Directory exists. How to rectify this issue correctly.
Considering the AD sites are on geographically different locations and I would assume the nearest Domain Controllers will always respond to each respective PC ping request locally and assign DFS-R servers nearest or within the same subnet.
Thank you in advance.