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Ran DCDiag and got several errors: Forwarders list has invalid forwarder: listsIPhere <<name unavailable>>  What should I do to resolve this?

Posted on 2010-11-08
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Last Modified: 2013-03-07
Error:  Forwarders list has invalid forwarder: [IP here] <<name unavailable>>  What should I do to resolve this?

I got 15 of these messages.  Not sure how to resolve or how serious they really are?

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Question by:tpsreports
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6 Comments
 
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Accepted Solution

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pmarquardt earned 250 total points
ID: 34089384
Look in the properties of the DNS service on the AD controller you ran the diag on. Make sure it is set to forward correctly. Depending on your domain structure on how things should be configured. Typically if you have more than 1 controller, one will forward (recursive) queries outside of the LAN. All other DNS services should point to this server as a forwarder. The server doing recursive queries should point to your ISP DNS servers, or another set of publicly used DNS servers, i.e. 4.2.2.2, 8.8.8.8, etc.
If you only have a single AD conroller, set the forwarders on you AD controller to point to your ISP or public DNS servers external to your organization.
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LVL 4

Expert Comment

by:pmarquardt
ID: 34089389
http://support.microsoft.com/kb/323380 gives a step by step on configuring forwarders for 2003 Server.
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Author Comment

by:tpsreports
ID: 34089580
Thanks pmarquardt - we have one domain controller here and another at a different location that replicates with the main one here.  So these error messages - are these forwarders that I should search for and delete?  Or do I just create the correct ones as in the kb article?
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Author Closing Comment

by:tpsreports
ID: 34103696
Thanks very much.  I put in the correct ISP DNS IPs and now do not have those errors.  I really appreciate your help.
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Expert Comment

by:naseer67
ID: 38961307
forwarder was there went into dns manager
action
properties
forwarders tab

then deleted

thanks

now the next step
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Expert Comment

by:naseer67
ID: 38961351
Directory Server Diagnosis


Performing initial setup:

   Trying to find home server...

   Home Server = powerserver

   * Identified AD Forest.
   Done gathering initial info.


Doing initial required tests

   
   Testing server: Default-First-Site-Name\POWERSERVER

      Starting test: Connectivity

         ......................... POWERSERVER passed test Connectivity



Doing primary tests

   
   Testing server: Default-First-Site-Name\POWERSERVER

   
      Starting test: DNS

         

         DNS Tests are running and not hung. Please wait a few minutes...

 ERROR: NO DNS servers for IPV6 stack was found
         ......................... POWERSERVER passed test DNS

   
   Running partition tests on : Schema

   
   Running partition tests on : Configuration

   
   Running partition tests on : nui

   
   Running enterprise tests on : nui.org

      Starting test: DNS

         Test results for domain controllers:

           
            DC: powerserver.nui.org

            Domain: nui.org

           

                 
               TEST: Basic (Basc)
                  Warning: The AAAA record for this DC was not found
                 
               TEST: Records registration (RReg)
                  Network Adapter

                  [00000007] Broadcom BCM5716C NetXtreme II GigE (NDIS VBD Client):

                 

                     Warning:
                     Missing AAAA record at DNS server 192.168.0.2:
                     powerserver.nui.org
                     
                     Warning:
                     Missing AAAA record at DNS server 192.168.0.2:
                     gc._msdcs.nui.org
                     
               Warning: Record Registrations not found in some network adapters

         
               powerserver                  PASS WARN PASS PASS PASS WARN n/a  
         ......................... nui.org passed test DNS


no more fails only  warnings

what next
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