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Can't Resolve/Join Domain From Rermote Subnet

Posted on 2013-12-16
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Last Modified: 2014-07-22
Hello,
Have segment 101 which has DC's and DNS. Have Segment 102 which has clients.
DNS cannot resolve domain requests from segment 102. Able to ping DC's and DNS. Does subnet have to be created in Site and Services or any DNS zones to be created?
Thanks
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Question by:broccolini
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Will Szymkowski earned 1500 total points
ID: 39721554
If you have a physical Site that is using DNS and DC authentication from a Hub site then it is recommened that you add this subnet to a Logical Site in Active Directroy Sites and Services. This does not however correct the issue you are encountering.

Sites are services are for managing Replication among domain controllers in your environment and also managing Sites and where they authenticate to. If Sites and Services are not implemeneted for a specific Site, the site will/should continue to function normanlly but users in the site will authenticate to any DC that is available or that they can contact directly. So it could contact a DC that is geographically far away which can create slow logon's, this is why it is recommended to setup subnets in sites and services.

As for your DNS / Authenication issue it appears to me that it might be firewall related. Make sure that you are not blocking port 53 DNS and 88 Kerberos.

Will.
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Author Closing Comment

by:broccolini
ID: 40212263
Although was a valid solution, figured it out that the routes were not correct. Client could reach dc but not other way around. Added static route to DC and problem solved.
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