HELP: DNS server nslookup failure
Jack Ling
My W2K3 domain controller has dns issues. I query it
with nslookup and it has dns request timed out:
***** screen capture ends starts ******
C:\Documents and Settings\Administrator.RHU01>nslookup
DNS request timed out.
timeout was 2 seconds.
*** Can't find server name for address 10.10.1.1: Timed
out
Default Server: UnKnown
Address: 10.10.1.1
> server localhost
DNS request timed out.
timeout was 2 seconds.
*** Can't find address for server localhost: Timed out
>
***** screen capture ends ******
I have 4004, 4015, 6702 errors but Microsoft's website
doesn't give me information about them when I was
directed to there.
I don't have Reverse lookup set. Do I need to?
Besides, I have another W2K3 server (say, server 2) which
will be used as a secondary server w/ DNS set as well. I
do have an "A" record of server 2 on server 1's DNS
forwarding zone.
I ping server1.our_domain.name is ok. But if I ping
server2.our_domain.name, it complians that it can't find
the host server2.our_domain_name.
I didn't do much on the DNS server after it was
automatically created when I set up Active Directory. Do
I need to manually do some extra configuration steps?
Your advice is much appreciated.
thanks,
jackling
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Kevin D. Goodknecht [MVP]
Jack Ling <anon...@discussions.microsoft.com> posted a question
Then Kevin replied below:
> Hi all,
>
> My W2K3 domain controller has dns issues. I query it
> with nslookup and it has dns request timed out:
>
> ***** screen capture ends starts ******
>
>
> C:\Documents and Settings\Administrator.RHU01>nslookup
> DNS request timed out.
> timeout was 2 seconds.
> *** Can't find server name for address 10.10.1.1: Timed
> out
> Default Server: UnKnown
> Address: 10.10.1.1
>
>> server localhost
> DNS request timed out.
> timeout was 2 seconds.
> *** Can't find address for server localhost: Timed out
>>
>
> ***** screen capture ends ******
242906 - DNS Request Timed Out Error Message When You Start Nslookup From a
Command Line: http://support.microsoft.com/default.aspx?scid=kb;en-us;242906
172060 - NSLOOKUP Can't Find Server Name for Address 127.0.0.1:
http://support.microsoft.com/default.aspx?scid=kb;en-us;172060
>
>
> I have 4004, 4015, 6702 errors but Microsoft's website
> doesn't give me information about them when I was
> directed to there.
If you only get 4004 and 4015 at start up you can ignore them.
http://www.eventid.net/display.asp?eventid=6702&source=
> I don't have Reverse lookup set. Do I need to?
Yes.
> Besides, I have another W2K3 server (say, server 2) which
> will be used as a secondary server w/ DNS set as well. I
> do have an "A" record of server 2 on server 1's DNS
> forwarding zone.
Depending on if the zone is stored in Active Directory on the DC and how
replicartion is configured on the the zone, you may not need a secondary
zone.
> I ping server1.our_domain.name is ok. But if I ping
> server2.our_domain.name, it complians that it can't find
> the host server2.our_domain_name.
>
> I didn't do much on the DNS server after it was
> automatically created when I set up Active Directory. Do
> I need to manually do some extra configuration steps?
>
>
> Your advice is much appreciated.
> thanks,
> jackling
Can you post an ipconfig /all?
--
Best regards,
Kevin D4 Dad Goodknecht Sr. [MVP]
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Jack Ling
Thank, pls find the output from ipconfig/all here:
Windows IP Configuration
Host Name . . . . . . . . . . . . : SERVER01
Primary Dns Suffix . . . . . . . : rhu.dh.com.hk
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : dh
Ethernet adapter Broadcom NetXtreme Gigabit Ethernet
Adapter - Onboard - Link A:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Broadcom NetXtreme
Gigabit Ethernet
Physical Address. . . . . . . . . : 00-0D-56-B9-5B-8F
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.10.1.1
Subnet Mask . . . . . . . . . . . : 255.255.255.192
Default Gateway . . . . . . . . . : 10.10.1.66
DNS Servers . . . . . . . . . . . : 10.10.1.1
10.10.101.37
10.10.102.37
Primary WINS Server . . . . . . . : 10.10.1.1
>.
>
Jack Ling
So, I created a Reverse Lookup zone and added the PTR
record for server 1. Great, it seems I can perform
nslookup now.
Do I need to add a PRT record for Server 2? Server 2
itself has a DNS server. Server 2 is meant to be a
backup/failover server of Server 1. Will it and how can I
have the changes made on Server 1 to be regularly
synchronized to Server 2?
best regards,
jackling
>.
>
Kevin D. Goodknecht [MVP]
>
>
> Thank, pls find the output from ipconfig/all here:
>
> Windows IP Configuration
>
> Host Name . . . . . . . . . . . . : SERVER01
> Primary Dns Suffix . . . . . . . : rhu.dh.com.hk
> Node Type . . . . . . . . . . . . : Hybrid
> IP Routing Enabled. . . . . . . . : No
> WINS Proxy Enabled. . . . . . . . : No
> DNS Suffix Search List. . . . . . : dh
>
> Ethernet adapter Broadcom NetXtreme Gigabit Ethernet
> Adapter - Onboard - Link A:
>
>
> Connection-specific DNS Suffix . :
> Description . . . . . . . . . . . : Broadcom NetXtreme
> Gigabit Ethernet
> Physical Address. . . . . . . . . : 00-0D-56-B9-5B-8F
> DHCP Enabled. . . . . . . . . . . : No
> IP Address. . . . . . . . . . . . : 10.10.1.1
> Subnet Mask . . . . . . . . . . . : 255.255.255.192
> Default Gateway . . . . . . . . . : 10.10.1.66
> DNS Servers . . . . . . . . . . . : 10.10.1.1
> 10.10.101.37
> 10.10.102.37
> Primary WINS Server . . . . . . . : 10.10.1.1
>
>
>
list, I can see the one pointing to itself, that is OK but the quwestion is
about the other two, you only referred to having one more planned DC. All
DNS servers in the list should have a zone for the AD domain.
So, if one of these DNS addresses doesn't have an AD Domain zone, remove it.
Kevin D. Goodknecht [MVP]
> Do I need to add a PRT record for Server 2?
Yes
Server 2
> itself has a DNS server. Server 2 is meant to be a
> backup/failover server of Server 1. Will it and how can I
> have the changes made on Server 1 to be regularly
> synchronized to Server 2?
>
If server 2 is a Win2k3, Store the zone in Active Directory on Server 1. By
storing the zone in Active Directory you can have it replicate to all DNS
servers in the Active Directory forest. Check on the Zone properties General
tab, there is a Replication settings button there.
JACK LING
Thanks. You have helped me a lot!
Regarding the other 2 DNS servers you questioned:
>> 10.10.101.37
>> 10.10.102.37
I may be wrong. I thought by putting these 2 DNS servers
(like an ISP's DNS server) for name resolutions for
Internet. (Our own DNS server behind our firewall is
meant for internal name resolutions) My intention is: if
user look for names outside our network (Internet), our
internet DNS server should refer to an outside server for
resolution.
Pls correct me if this is wrong and how to remedy?
thanks again,
jackling.
>.
>
Kevin D. Goodknecht [MVP]
JACK LING <anon...@discussions.microsoft.com> posted a question
Then Kevin replied below:
> Hi Ken,
>
>
> Thanks. You have helped me a lot!
>
> Regarding the other 2 DNS servers you questioned:
>>> 10.10.101.37
>>> 10.10.102.37
>
> I may be wrong. I thought by putting these 2 DNS servers
> (like an ISP's DNS server) for name resolutions for
> Internet. (Our own DNS server behind our firewall is
> meant for internal name resolutions) My intention is: if
> user look for names outside our network (Internet), our
> internet DNS server should refer to an outside server for
> resolution.
>
> Pls correct me if this is wrong and how to remedy?
>
Internal clients must only use an internal DNS for the AD Domain, it must
have the zone for the AD domain. In the internal DNS set a forwarder to
external DNS servers. That way any name it does not know it forwards or uses
recursion to resolve the name.
If you use an external DNS on a member of an AD domain, when the AD member
searches DNS for domain resources, such as the domain controller or if it is
trying to register in the AD zone, the external DNS will return an error and
the query will fail without even attempting to use the internal DNS.
825036 - Best practices for DNS client settings in Windows 2000 Server and
in Windows Server 2003
http://support.microsoft.com/default.aspx?scid=kb;en-us;825036
323380 - HOW TO: Configure DNS for Internet Access in Windows Server 2003
http://support.microsoft.com/default.aspx?scid=kb;en-us;323380
William Stacey [MVP]
lookups on them. I typically don't bother. the nslookup "error" can be
ignored - it is a status message.
--
William Stacey, MVP
"Jack Ling" <anon...@discussions.microsoft.com> wrote in message
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