asked on dcdiag /test:dns fails
Hello,
I'm trying to repair the DNS on a Windows 2008 R2 Server that fails the command dcdiag /test:dns. How can I reset or repair this? Here is the following test results:
Directory Server Diagnosis
Performing initial setup:
Trying to find home server...
Home Server = LINFORD01
* Identified AD Forest.
Done gathering initial info.
Doing initial required tests
Testing server: Default-First-Site-Name\LI
Starting test: Connectivity
The host 09db5bef-5e6e-4260-9da7-63
not be resolved to an IP address. Check the DNS server, DHCP, server
name, etc.
......................... LINFORD01 failed test Connectivity
Doing primary tests
Testing server: Default-First-Site-Name\LI
Starting test: DNS
DNS Tests are running and not hung. Please wait a few minutes...
......................... LINFORD01 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 : linford
Running enterprise tests on : linford.com
Starting test: DNS
Test results for domain controllers:
DC: LINFORD01.linford.com
Domain: linford.com
TEST: Basic (Basc)
Error: No LDAP connectivity
Warning: adapter
[00000006] Broadcom NetXtreme Gigabit Ethernet has invalid
DNS server: 192.168.1.11 (LINFORD01)
Warning: adapter
[00000006] Broadcom NetXtreme Gigabit Ethernet has invalid
DNS server: 127.0.0.1 (LINFORD01)
Error: all DNS servers are invalid
No host records (A or AAAA) were found for this DC
Warning: The Active Directory zone on this DC/DNS server was
not found (probably a misconfiguration)
TEST: Dynamic update (Dyn)
Warning: Failed to add the test record _dcdiag_test_record in zone linford.com
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: 192.168.1.11 (LINFORD01)
2 test failure on this DNS server
Name resolution is not functional. _ldap._tcp.linford.com. failed on the DNS server 192.168.1.11
Summary of DNS test results:
Auth Basc Forw Del Dyn RReg Ext
__________________________
Domain: linford.com
LINFORD01 PASS FAIL PASS n/a WARN FAIL n/a
......................... linford.com failed test DNS
I'm trying to repair the DNS on a Windows 2008 R2 Server that fails the command dcdiag /test:dns. How can I reset or repair this? Here is the following test results:
Directory Server Diagnosis
Performing initial setup:
Trying to find home server...
Home Server = LINFORD01
* Identified AD Forest.
Done gathering initial info.
Doing initial required tests
Testing server: Default-First-Site-Name\LI
Starting test: Connectivity
The host 09db5bef-5e6e-4260-9da7-63
not be resolved to an IP address. Check the DNS server, DHCP, server
name, etc.
......................... LINFORD01 failed test Connectivity
Doing primary tests
Testing server: Default-First-Site-Name\LI
Starting test: DNS
DNS Tests are running and not hung. Please wait a few minutes...
......................... LINFORD01 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 : linford
Running enterprise tests on : linford.com
Starting test: DNS
Test results for domain controllers:
DC: LINFORD01.linford.com
Domain: linford.com
TEST: Basic (Basc)
Error: No LDAP connectivity
Warning: adapter
[00000006] Broadcom NetXtreme Gigabit Ethernet has invalid
DNS server: 192.168.1.11 (LINFORD01)
Warning: adapter
[00000006] Broadcom NetXtreme Gigabit Ethernet has invalid
DNS server: 127.0.0.1 (LINFORD01)
Error: all DNS servers are invalid
No host records (A or AAAA) were found for this DC
Warning: The Active Directory zone on this DC/DNS server was
not found (probably a misconfiguration)
TEST: Dynamic update (Dyn)
Warning: Failed to add the test record _dcdiag_test_record in zone linford.com
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: 192.168.1.11 (LINFORD01)
2 test failure on this DNS server
Name resolution is not functional. _ldap._tcp.linford.com. failed on the DNS server 192.168.1.11
Summary of DNS test results:
Auth Basc Forw Del Dyn RReg Ext
__________________________
Domain: linford.com
LINFORD01 PASS FAIL PASS n/a WARN FAIL n/a
......................... linford.com failed test DNS
DNSWindows Server 2008
Last Comment
DrDave242
ASKER
It is the only DC in the domain and it's IP is 192.168.1.11.
I've attached a screenshot.
![DNS screenshot]()
I've attached a screenshot.
ASKER
dcdiag /fix results:
Microsoft Windows [Version 6.0.6002]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.
C:\Users\Administrator>dcd
Directory Server Diagnosis
Performing initial setup:
Trying to find home server...
Home Server = LINFORD01
* Identified AD Forest.
Done gathering initial info.
Doing initial required tests
Testing server: Default-First-Site-Name\LI
Starting test: Connectivity
The host 09db5bef-5e6e-4260-9da7-63
not be resolved to an IP address. Check the DNS server, DHCP, server
name, etc.
......................... LINFORD01 failed test Connectivity
Doing primary tests
Testing server: Default-First-Site-Name\LI
Skipping all tests, because server LINFORD01 is not responding to
directory service requests.
Running partition tests on : ForestDnsZones
Starting test: CheckSDRefDom
......................... ForestDnsZones passed test CheckSDRefDom
Starting test: CrossRefValidation
......................... ForestDnsZones passed test
CrossRefValidation
Running partition tests on : DomainDnsZones
Starting test: CheckSDRefDom
......................... DomainDnsZones passed test CheckSDRefDom
Starting test: CrossRefValidation
......................... DomainDnsZones passed test
CrossRefValidation
Running partition tests on : Schema
Starting test: CheckSDRefDom
......................... Schema passed test CheckSDRefDom
Starting test: CrossRefValidation
......................... Schema passed test CrossRefValidation
Running partition tests on : Configuration
Starting test: CheckSDRefDom
......................... Configuration passed test CheckSDRefDom
Starting test: CrossRefValidation
......................... Configuration passed test CrossRefValidation
Running partition tests on : linford
Starting test: CheckSDRefDom
......................... linford passed test CheckSDRefDom
Starting test: CrossRefValidation
......................... linford passed test CrossRefValidation
Running enterprise tests on : linford.com
Starting test: LocatorCheck
......................... linford.com passed test LocatorCheck
Starting test: Intersite
......................... linford.com passed test Intersite
Microsoft Windows [Version 6.0.6002]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.
C:\Users\Administrator>dcd
Directory Server Diagnosis
Performing initial setup:
Trying to find home server...
Home Server = LINFORD01
* Identified AD Forest.
Done gathering initial info.
Doing initial required tests
Testing server: Default-First-Site-Name\LI
Starting test: Connectivity
The host 09db5bef-5e6e-4260-9da7-63
not be resolved to an IP address. Check the DNS server, DHCP, server
name, etc.
......................... LINFORD01 failed test Connectivity
Doing primary tests
Testing server: Default-First-Site-Name\LI
Skipping all tests, because server LINFORD01 is not responding to
directory service requests.
Running partition tests on : ForestDnsZones
Starting test: CheckSDRefDom
......................... ForestDnsZones passed test CheckSDRefDom
Starting test: CrossRefValidation
......................... ForestDnsZones passed test
CrossRefValidation
Running partition tests on : DomainDnsZones
Starting test: CheckSDRefDom
......................... DomainDnsZones passed test CheckSDRefDom
Starting test: CrossRefValidation
......................... DomainDnsZones passed test
CrossRefValidation
Running partition tests on : Schema
Starting test: CheckSDRefDom
......................... Schema passed test CheckSDRefDom
Starting test: CrossRefValidation
......................... Schema passed test CrossRefValidation
Running partition tests on : Configuration
Starting test: CheckSDRefDom
......................... Configuration passed test CheckSDRefDom
Starting test: CrossRefValidation
......................... Configuration passed test CrossRefValidation
Running partition tests on : linford
Starting test: CheckSDRefDom
......................... linford passed test CheckSDRefDom
Starting test: CrossRefValidation
......................... linford passed test CrossRefValidation
Running enterprise tests on : linford.com
Starting test: LocatorCheck
......................... linford.com passed test LocatorCheck
Starting test: Intersite
......................... linford.com passed test Intersite
sounds like you need to do some metadata cleanup see https://www.experts-exchange.com/questions/27457654/DNS-on-Windows-2008-deleted.html
cheers
Andrew
cheers
Andrew
ASKER
I have already done that and would like information on how to reset DNS. Perhaps delete the DNS object and recreate it?.
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Is the DNS Server service running, and if you look in the DNS console, do you see forward lookup zones named linford.com and _msdcs.linford com?