We have several locations that have 2003 Server DCs/DNS/DHCP servers. Our main location, that is supposed to have our Primary and Backup domain controller seems to be processing logons from users at other locations. Your primary DC/DNS/AD server should be processing all the logons, however I see that the backup DC (also a backup DNS/AD/Exchange server) seems to be processing all the user logons.
This seems to be happening at the main site, computers are chooosing to logon to SERVERB instead of SERVERA as they are supposed to. And also computers that are on different subnets, in different geographic locations appear to be authenticating to SERVERB at the main site, when they should be authenticating to the servers at their location.
Why is this happening, and how do I change it.