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dns on sbs 2011

drdanskin
drdanskin used Ask the Experts™
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I have a new install of sbs2011. my dns is not working correctly. I've added 3 forwarders and it shows me the fqdn but i get timed out validating. i've increased the timeout from 3 to 5, i've removed the ipv6 adapters and only have the ipv4 assigned. when i launch nslookup from the dns console i get the ip address of the server and server name is unknown. I can receive einternet emails and workstations with a secondary internet dns server have access. us root hints are unchecked. there are no conditional forwarders and there is nothing in my reverse lookup zone.
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when i launch nslookup from the dns console i get the ip address of the server and server name is unknown.
Its not a problem, It shows the "unknown" because the reverse lookup zone is not configured or pointer record of the DNS server is missing.

My dns is not working correctly.
To check the health of DNS and DC run the dcdiag /test:dns and netdiag /q command and post the result if there is any issue.

Also make sure that server pointing itself as a primary/preferred DNS server in NIC.

Regards,

Distinguished Expert 2018

Commented:
First, don't remove IPv6. One of the most common problems with SBS is that people start digging into the system and break more than they fix. Run the Fix My Network Wizard and at least get things as close to original as possible.

then, please post a full output or screenshot of an nslookup exampel that you've tried. your post left a few ambiguities that, instead of playing 20 questions, I can get an answer to just from the output.  Finally, please post an ipconfig /all from the server.

-Cliff

Author

Commented:
Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\Administrator>nslookup www.google.com
DNS request timed out.
    timeout was 2 seconds.
Server:  UnKnown
Address:  ::1

DNS request timed out.
    timeout was 2 seconds.
DNS request timed out.
    timeout was 2 seconds.
*** Request to UnKnown timed-out

C:\Users\Administrator>dcdiag /test:dns

Directory Server Diagnosis

Performing initial setup:
   Trying to find home server...
   Home Server = BONASYS
   * Identified AD Forest.
   Done gathering initial info.

Doing initial required tests

   Testing server: Default-First-Site-Name\BONASYS
      Starting test: Connectivity
         ......................... BONASYS passed test Connectivity

Doing primary tests

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

      Starting test: DNS

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

   Running partition tests on : ForestDnsZones

   Running partition tests on : DomainDnsZones

   Running partition tests on : Schema

   Running partition tests on : Configuration

   Running partition tests on : bonafidesystems

   Running enterprise tests on : bonafidesystems.local
      Starting test: DNS
         Test results for domain controllers:

            DC: BONASYS.bonafidesystems.local
            Domain: bonafidesystems.local


               TEST: Basic (Basc)
                  Warning: adapter
                  [00000007] Broadcom NetXtreme Gigabit Ethernet has invalid
                  DNS server: 4.2.2.2 (<name unavailable>)

               TEST: Forwarders/Root hints (Forw)
                  Error: All forwarders in the forwarder list are invalid.

               TEST: Records registration (RReg)
                  Network Adapter
                  [00000007] Broadcom NetXtreme Gigabit Ethernet:
                     Warning:
                     Missing CNAME record at DNS server 4.2.2.2:
                     33649bf9-fa66-458d-bcd9-f86a74e6249d._msdcs.bonafidesystems
.local

                     Warning:
                     Missing A record at DNS server 4.2.2.2:
                     BONASYS.bonafidesystems.local

                     Error:
                     Missing SRV record at DNS server 4.2.2.2:
                     _ldap._tcp.bonafidesystems.local

                     Error:
                     Missing SRV record at DNS server 4.2.2.2:
                     _ldap._tcp.4584f099-4f18-4b41-9d37-2493eaf58187.domains._ms
dcs.bonafidesystems.local

                     Error:
                     Missing SRV record at DNS server 4.2.2.2:
                     _kerberos._tcp.dc._msdcs.bonafidesystems.local

                     Error:
                     Missing SRV record at DNS server 4.2.2.2:
                     _ldap._tcp.dc._msdcs.bonafidesystems.local

                     Error:
                     Missing SRV record at DNS server 4.2.2.2:
                     _kerberos._tcp.bonafidesystems.local

                     Error:
                     Missing SRV record at DNS server 4.2.2.2:
                     _kerberos._udp.bonafidesystems.local

                     Error:
                     Missing SRV record at DNS server 4.2.2.2:
                     _kpasswd._tcp.bonafidesystems.local

                     Error:
                     Missing SRV record at DNS server 4.2.2.2:
                     _ldap._tcp.Default-First-Site-Name._sites.bonafidesystems.l
ocal

                     Error:
                     Missing SRV record at DNS server 4.2.2.2:
                     _kerberos._tcp.Default-First-Site-Name._sites.dc._msdcs.bon
afidesystems.local

                     Error:
                     Missing SRV record at DNS server 4.2.2.2:
                     _ldap._tcp.Default-First-Site-Name._sites.dc._msdcs.bonafid
esystems.local

                     Error:
                     Missing SRV record at DNS server 4.2.2.2:
                     _kerberos._tcp.Default-First-Site-Name._sites.bonafidesyste
ms.local

                     Error:
                     Missing SRV record at DNS server 4.2.2.2:
                     _ldap._tcp.gc._msdcs.bonafidesystems.local

                     Warning:
                     Missing A record at DNS server 4.2.2.2:
                     gc._msdcs.bonafidesystems.local

                     Error:
                     Missing SRV record at DNS server 4.2.2.2:
                     _gc._tcp.Default-First-Site-Name._sites.bonafidesystems.loc
al

                     Error:
                     Missing SRV record at DNS server 4.2.2.2:
                     _ldap._tcp.Default-First-Site-Name._sites.gc._msdcs.bonafid
esystems.local

                     Error:
                     Missing SRV record at DNS server 4.2.2.2:
                     _ldap._tcp.pdc._msdcs.bonafidesystems.local

               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: 4.2.2.2 (<name unavailable>)
               1 test failure on this DNS server
               Name resolution is not functional. _ldap._tcp.bonafidesystems.loc
al. failed on the DNS server 4.2.2.2

            DNS server: 65.24.0.168 (<name unavailable>)
               1 test failure on this DNS server
               PTR record query for the 1.0.0.127.in-addr.arpa. failed on the DN
S server 65.24.0.168
            DNS server: 68.237.161.12 (<name unavailable>)
               1 test failure on this DNS server
               PTR record query for the 1.0.0.127.in-addr.arpa. failed on the DN
S server 68.237.161.12
            DNS server: 71.250.0.12 (<name unavailable>)
               1 test failure on this DNS server
               PTR record query for the 1.0.0.127.in-addr.arpa. failed on the DN
S server 71.250.0.12
         Summary of DNS test results:

                                            Auth Basc Forw Del  Dyn  RReg Ext
            _________________________________________________________________
            Domain: bonafidesystems.local
               BONASYS                      PASS WARN FAIL PASS PASS FAIL n/a

         ......................... bonafidesystems.local failed test DNS

4.2.2.2 is the secondary dns in the adapters tcp settings


C:\Users\Administrator>netdiag /q
'netdiag' is not recognized as an internal or external command,
operable program or batch file.

C:\Users\Administrator>
Remove the 4.2.2.2, 65.24.0.168 and 71.250.0.12 from NIC and point itself or local DNS server only then run ipconfig /flushdns & ipconfig /registerdns command on server.

Also contact to your ISP for valid DNS server IP and put them in to forwarders, result showing the " All forwarders in the forwarder list are invalid".

4.2.2.2 is the secondary dns in the adapters tcp settings
Do not put any public DNS IP in server NIC as its not recommended.

Regards.
Top Expert 2013

Commented:
I agree with abhijitwaikar but if you set up the server properly using the "connect to the internet" and "configure my internet address" wizards that should have been properly set originally. If you haven't run the wizards to set up the server please do so. If you have please remove and run the "fix my network" wizard that cgaliher suggested.
In a Windows domain the server must point ONLY to its' internal DNS servers, in this case the SBS, and all PC's must point ONLY to the SBS. Also as pointed out IPv6 must be left enabled, and SBS must be the DHCP server, though there are workarounds for that if you must do so.

Always use the wizards with SBS.

Author

Commented:
removed the 4.2.2.2 still had issues. isp is verizon. put in 4 verizon dns servers that i use for another customer with his 85 stores and none could validate. finally added a paetec, at&t and roadrunner dns server and only the paetec came back ok. removed the others and added a second paetec and all is well.
Top Expert 2013

Commented:
I assume you added as a forwarders and not to the NIC. If you added to the NIC I guarantee you will have further issues.

Author

Commented:
correct. as a forwarder