Question : DNS errors

I've just ran DCDIAG on our 1 Domain Controller and a series of errors have occurred.
Please may I have some assistance on all errors.

Many thanks,
Antonio
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Domain Controller Diagnosis
 
Performing initial setup:
   Done gathering initial info.
 
Doing initial required tests
   
   Testing server: Company\DC
      Starting test: Connectivity
         ......................... DC passed test Connectivity
 
Doing primary tests
   
   Testing server: Company\DC
 
DNS Tests are running and not hung. Please wait a few minutes...
   
   Running partition tests on : ForestDnsZones
   
   Running partition tests on : DomainDnsZones
   
   Running partition tests on : Schema
   
   Running partition tests on : Configuration
   
   Running partition tests on : Company
   
   Running enterprise tests on : COMPANY.DOMAIN.COM
      Starting test: DNS
         Test results for domain controllers:
            
            DC: DC.COMPANY.DOMAIN.COM
            Domain: COMPANY.DOMAIN.COM
 
                  
               TEST: Basic (Basc)
                  Warning: adapter [00000007] Intel(R) PRO/1000 MT Network Connection has invalid DNS server: 192.168.58.3 ()
                  Error: all DNS servers are invalid
                  
               TEST: Forwarders/Root hints (Forw)
                  Error: Forwarders list has invalid forwarder: 208.67.220.220 ()
                  Error: Forwarders list has invalid forwarder: 208.67.222.222 ()
                  Error: Root hints list has invalid root hint server: b.root-servers.net. (192.228.79.201)
                  Error: Root hints list has invalid root hint server: c.root-servers.net. (192.33.4.12)
                  Error: Root hints list has invalid root hint server: e.root-servers.net. (192.203.230.10)
                  Error: Root hints list has invalid root hint server: f.root-servers.net. (192.5.5.241)
                  Error: Root hints list has invalid root hint server: g.root-servers.net. (192.112.36.4)
                  Error: Root hints list has invalid root hint server: i.root-servers.net. (192.36.148.17)
                  Error: Root hints list has invalid root hint server: j.root-servers.net. (192.58.128.30)
                  Error: Root hints list has invalid root hint server: l.root-servers.net. (199.7.83.42)
               
            TEST: Records registration (RReg)
               Error: Record registrations cannot be found for all the network adapters
         
         Summary of test results for DNS servers used by the above domain controllers:
 
            DNS server: 192.112.36.4 (g.root-servers.net.)
               1 test failure on this DNS server
               This is not a valid DNS server. PTR record query for the 1.0.0.127.in-addr.arpa. failed on the DNS server 192.112.36.4
               
            DNS server: 192.168.58.3 ()
               1 test failure on this DNS server
               Name resolution is not functional. _ldap._tcp.COMPANY.DOMAIN.COM. failed on the DNS server 192.168.58.3
               
            DNS server: 192.203.230.10 (e.root-servers.net.)
               1 test failure on this DNS server
               This is not a valid DNS server. PTR record query for the 1.0.0.127.in-addr.arpa. failed on the DNS server 192.203.230.10
               
            DNS server: 192.228.79.201 (b.root-servers.net.)
               1 test failure on this DNS server
               This is not a valid DNS server. PTR record query for the 1.0.0.127.in-addr.arpa. failed on the DNS server 192.228.79.201
               
            DNS server: 192.33.4.12 (c.root-servers.net.)
               1 test failure on this DNS server
               This is not a valid DNS server. PTR record query for the 1.0.0.127.in-addr.arpa. failed on the DNS server 192.33.4.12
               
            DNS server: 192.36.148.17 (i.root-servers.net.)
               1 test failure on this DNS server
               This is not a valid DNS server. PTR record query for the 1.0.0.127.in-addr.arpa. failed on the DNS server 192.36.148.17
               
            DNS server: 192.5.5.241 (f.root-servers.net.)
               1 test failure on this DNS server
               This is not a valid DNS server. PTR record query for the 1.0.0.127.in-addr.arpa. failed on the DNS server 192.5.5.241
               
            DNS server: 192.58.128.30 (j.root-servers.net.)
               1 test failure on this DNS server
               This is not a valid DNS server. PTR record query for the 1.0.0.127.in-addr.arpa. failed on the DNS server 192.58.128.30
               
            DNS server: 199.7.83.42 (l.root-servers.net.)
               1 test failure on this DNS server
               This is not a valid DNS server. PTR record query for the 1.0.0.127.in-addr.arpa. failed on the DNS server 199.7.83.42
               
            DNS server: 208.67.220.220 ()
               1 test failure on this DNS server
               This is not a valid DNS server. PTR record query for the 1.0.0.127.in-addr.arpa. failed on the DNS server 208.67.220.220
               
            DNS server: 208.67.222.222 ()
               1 test failure on this DNS server
               This is not a valid DNS server. PTR record query for the 1.0.0.127.in-addr.arpa. failed on the DNS server 208.67.222.222
               
         Summary of DNS test results:
         
                                            Auth Basc Forw Del  Dyn  RReg Ext  
               ________________________________________________________________
            Domain: COMPANY.DOMAIN.COM
               DC                        PASS FAIL FAIL PASS PASS FAIL n/a  
         
         ......................... COMPANY.DOMAIN.COM failed test DNS
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Answer : DNS errors


Okay, so we have to concentrate on this one:

IP Address:         The DNS registration is disabled for this interface

Open up the adapter properties, select TCP/IP properties then Advanced and the DNS tab. Is "register this connections addresses..." ticked?

And lets have a look on the DNS Server as well. Do you have either of these?

 - A forward lookup zone called _msdcs.company.domain.com
 - A sub-folder under company.domain.com called _msdcs (if the above exists as well this should be greyed out)

Chris
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