Solved

Can only add to the domain servers in the same subnet as the Domain Controller.

Posted on 2016-11-01
3
54 Views
Last Modified: 2016-11-01
I have a network setup with four subnets.

Inside 1
Inside 2
DMZ 1
DMZ 2

I have a domain controller running on Inside 1 and I can join servers in that same subnet to the domain with no issues. If I try to add servers from any other subnet to the domain they all fail.

I have rules in place allowing all traffic between subnets, just to rule that out. When attempting a domain add I can see traffic from the source server hitting the DC using Wireshark on the DC so I know that there are no firewall blocking issues.

I suspect my issue is one of incorrect DNS configuration.

Any help on this would be greatly appreciated.

TIA.
0
Comment
Question by:rob preston
  • 2
3 Comments
 
LVL 14

Accepted Solution

by:
Jason Crawford earned 500 total points
ID: 41868193
Do both Domain Controllers include each other's IP address as a DNS server in the network adapter settings?

Example:

DC1
- IP Address: 10.254.1.100
- Primary DNS:10.254.1.100
- Secondary DNS: 10.254.2.100

DC2
- IP Address: 10.254.2.100
- Primary DNS: 10.254.2.100
- Secondary DNS:10.254.1.100
0
 

Author Comment

by:rob preston
ID: 41868198
Those settings are correct but in going back to check I straight away noticed that I had a typo in my subnet mask, so all is now working.

Thanks !!! :-)
1
 
LVL 14

Expert Comment

by:Jason Crawford
ID: 41868233
Happens to the best of us.  If you found my assistance helpful I would appreciate it if you would mark my comment as the solution.  Have a good one.
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This script can help you clean up your user profile database by comparing profiles to Active Directory users in a particular OU, and removing the profiles that don't match.
Last week, our Skyport webinar on “How to secure your Active Directory” (https://www.experts-exchange.com/videos/5810/Webinar-Is-Your-Active-Directory-as-Secure-as-You-Think.html?cid=Gene_Skyport) provided 218 attendees with a step-by-step guide for…
In this Micro Tutorial viewers will learn how to use Windows Server Backup to create full image of their system. Tutorial shows how to install Windows Server Backup Feature on Windows 2012R2 and how to configure scheduled Bare Metal Recovery backup.…
This video shows how to use Hyena, from SystemTools Software, to bulk import 100 user accounts from an external text file. View in 1080p for best video quality.

825 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question