Multiple Domains DNS Suffix Search List

Multiple Domains DNS Suffix Search List

I tried to create a Group Policy using the following path...

Computer Configuration > Administrative Templates > Network > DNS Client > DNS Suffix Search List

Set to Enabled

Add the following, it is important that there are no space between the domains

domain1.com,domain2.pt

After pushing this policy out to all PC's, I did an "ipconfig /all" and noticed that ...

Windows IP Configuration

DNS Suffix Search List...: domain1.com 

Only the primary DNS suffix was showing. 

After much investigation, I discovered that this Group Policy Template apparently doesn't work, so I created a Group Policy using the following registry entry...

Computer Configuration > Preferences > Windows Settings > Registry

Hive: HKEY_LOCAL_MACHINE

Key Path: SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

Value Name: SearchList

Value type: REG_SZ

Value data: domain1.com,domain2.pt (Ensure no spaces)

I then used Item Level targeting to ensure that it would not apply to the OU for Domain controllers 

After pushing out the policy, I noticed that "ipconfig /all" now shows both domains in the suffix search list. If I try to ping something on domain2.pt, it responds immediately.