Question about Server 2008 global catalogs and preferred logon servers

Question

We have multiple sites with a global catalog AD DC at each location with VPN tunnels
VPN tunnels work as needed nothing wrong there ..

When clients at site B attempt to login and then run the set command it states that the logon server is the Domain Controller at Site A which over a small broadband link is bad any ideas how we can set it so that Site B "logs onto" DC B etc ?

Any help would be greatly appreciated

I was looking at; http://support.microsoft.com/kb/192064 which may provide a workaround?

Are your sites setup correctly in sites and services? – Zypher Oct 07 '10 at 13:49 — Zypher, Oct 07 '10 at 13:49
Yep with full replication working fine – Rhys Evans Oct 07 '10 at 13:50 — Rhys Evans, Oct 07 '10 at 13:50
Do you have subnets set up in each AD site? – Christopher Oct 20 '10 at 20:40 — Christopher, Oct 20 '10 at 20:40

score 2 · Answer 1 · answered Dec 07 '11 at 19:24

You need to properly configure Active Directory Sites and Services.

Things that you should be configuring in Sites & Services:

Subnets
Inter-site Links
What Domain Controllers belong to what site
Make sure that there is at least 1 GC at each site.

If you have this all configured, then chances are there are connectivity issues at the sites mentioned. If the appropriate DCs for a defined site are unreachable, the clients will attempt to authenticate over the lowest-cost link available.

Question about Server 2008 global catalogs and preferred logon servers

1 Answers1