nslookup error - Please HELP!!!

  • Thread starter Thread starter Ola
  • Start date Start date
O

Ola

Hello again,

I am back with my problem once again. I just typed
nslookup at my command prompt on both the win2k server and
the XP Pro that are on my LAN network and I got the same
message

*** Can't find server name for address 192.168.1.22: Non-
existent domain
*** Default servers are not available
Default Server: Unknown
Address: 192.168.1.22

Can someone please help me with this problem please.....

Thank you in advance

Ola
 
In Ola <[email protected]> posted a question
Then Kevin replied below:
: Hello again,
:
: I am back with my problem once again. I just typed
: nslookup at my command prompt on both the win2k server and
: the XP Pro that are on my LAN network and I got the same
: message
:
: *** Can't find server name for address 192.168.1.22: Non-
: existent domain
: *** Default servers are not available
: Default Server: Unknown
: Address: 192.168.1.22
:
::
:
: Can someone please help me with this problem please.....
:
: Thank you in advance
:
: Ola

This is not a real problem it is a message nslookup gives you when you do
not have a reverse lookup on your DNS server's IP address.
If you want it to go away, configure a reverse lookup for its IP address.
 
Sorry for my incomplete post, but I have reverse lookup
running on the server.

I tried configuring the reverse lookup after reading some
of the prior postings, and the entry in my Reverse Lookup
Zone is 192.168.1.x Subnet and it has two items that are
(same as parent folder) Type is start of Authority and
Name Server and Data on Start of Authority is [1], atb.atb-
associates., admin.atb-associates.com while Data on Name
Server is atb.atb-associates.com

I have 2 entries in my forward lookup zone

atb-associates.com
feyiola.com

The full Server name when I created the Server is atb.atb-
associates.com

Do I need additional entries in the Reverse Lookup Zone?

Thank you
 
In (e-mail address removed) <[email protected]>
posted a question
Then Kevin replied below:
: Sorry for my incomplete post, but I have reverse lookup
: running on the server.
:
: I tried configuring the reverse lookup after reading some
: of the prior postings, and the entry in my Reverse Lookup
: Zone is 192.168.1.x Subnet and it has two items that are
: (same as parent folder) Type is start of Authority and
: Name Server and Data on Start of Authority is [1], atb.atb-
: associates., admin.atb-associates.com while Data on Name
: Server is atb.atb-associates.com
:
: I have 2 entries in my forward lookup zone
:
: atb-associates.com
: feyiola.com
:
: The full Server name when I created the Server is atb.atb-
: associates.com
:
: Do I need additional entries in the Reverse Lookup Zone?
:
Your reverse lookup zone is configured wrong it should be
1.168.192.in-addr.arpa.
in addition to the ns records it should have PTR records like this:
22 PTR atb.atb-associates.com
 
Thanks Kevin,

Now when I typed nslookup at my command prompt I get:

Default Server: atb.atb-associates.com
Address: 192.168.1.22

Is this all that I need to see and if so, does that mean
that my DNS is properly configured? I get the same result
from both server and the XP.

Thanks again for all your help.

Ola
-----Original Message-----
In (e-mail address removed)
Click to expand...
posted a question
Then Kevin replied below:
: Sorry for my incomplete post, but I have reverse lookup
: running on the server.
:
: I tried configuring the reverse lookup after reading some
: of the prior postings, and the entry in my Reverse Lookup
: Zone is 192.168.1.x Subnet and it has two items that are
: (same as parent folder) Type is start of Authority and
: Name Server and Data on Start of Authority is [1], atb.atb-
: associates., admin.atb-associates.com while Data on Name
: Server is atb.atb-associates.com
:
: I have 2 entries in my forward lookup zone
:
: atb-associates.com
: feyiola.com
:
: The full Server name when I created the Server is atb.atb-
: associates.com
:
: Do I need additional entries in the Reverse Lookup Zone?
:
Your reverse lookup zone is configured wrong it should be
1.168.192.in-addr.arpa.
in addition to the ns records it should have PTR records like this:
22 PTR atb.atb-associates.com




.
Click to expand...
 
In Ola <[email protected]> posted a question
Then Kevin replied below:
: Thanks Kevin,
:
: Now when I typed nslookup at my command prompt I get:
:
: Default Server: atb.atb-associates.com
: Address: 192.168.1.22
:
: Is this all that I need to see and if so, does that mean
: that my DNS is properly configured? I get the same result
: from both server and the XP.
:

That is all you need for nslookup to stop giving you the message.
 
Okay Kevin,

Now that I have solved that problem, I read in another
thread where someone said they forwarded their LAN DNS
address to the ISP's DNS servers.

In my situation I have my win2k as my LAN DNS Server. Can
you tell me if I need to do the forwarding, and if so,
where do I put the entry?

My router is the only equipment with my ISP's DNS
addresses on it. Is it necessary for my server to forward
to the ISP's DNS Servers and if so where in win2k do I do
that.

Thanks a million.
 
In
Ola said:
Okay Kevin,

Now that I have solved that problem, I read in another
thread where someone said they forwarded their LAN DNS
address to the ISP's DNS servers.

In my situation I have my win2k as my LAN DNS Server. Can
you tell me if I need to do the forwarding, and if so,
where do I put the entry?

My router is the only equipment with my ISP's DNS
addresses on it. Is it necessary for my server to forward
to the ISP's DNS Servers and if so where in win2k do I do
that.

Thanks a million.
Click to expand...


Follow http://support.microsoft.com/?id=300202 to show you how to configure
a forwarder.

--
Regards,
Ace

Please direct all replies to the newsgroup so all can benefit.
This posting is provided "AS IS" with no warranties.

Ace Fekay, MCSE 2000, MCSE+I, MCSA, MCT, MVP
Microsoft Windows MVP - Active Directory
 
Thanks Ace,

But you did not tell me if I need to forward my DNS to my
DSL ISP's DNS. I need to know what I accomplish by doing
such.

Can you educate me please.

Thanks

Ola
 
Sorry once again,

I have two different organizations that I am dealing with.

1. DSL ISP Provider
2. Registrar

Each one has two DNS server addresses.

The ISP is my connection to the internet and its DNS
server addresses are referenced in my router. While the
Registrar has two other addresses that my domain name is
referencing?

I am not sure of the last part, so my question is that I
am planning on putting forwarder on my Local DNS. Do I add
all four DNS addresses?

Thanks

Ola
 
In
Ola said:
Sorry once again,

I have two different organizations that I am dealing with.

1. DSL ISP Provider
2. Registrar

Each one has two DNS server addresses.

The ISP is my connection to the internet and its DNS
server addresses are referenced in my router. While the
Registrar has two other addresses that my domain name is
referencing?

I am not sure of the last part, so my question is that I
am planning on putting forwarder on my Local DNS. Do I add
all four DNS addresses?

Thanks

Ola
Click to expand...

You could use those four if you like. Recursion is a method of sending out a
query that a DNS server does not have an answer for. By default it uses your
Root Hints. When you configure a Forwarder, it specifically send the query
to that specific server first BEFORE using the Root HInts. This way, it will
let the forwarder perform all the work and just receive the answer. When
configuring a forwarder it sends it to that server. If you have more than
one forwarder, it will try them one by one until it finds an answer, then
goes to the Root Hints if none of them find the answer. That last part can
be stopped by checking "Do Not Use Recursion" checkbox in the Forwarder tab.

SO you see, forwarding is much more efficient.

So yes, you would forward it to your ISP's server (usually NOT the
registrar's). Some DNS servers have that feature turned off. If it is and
you selected that DNS as a forwarder, then you'll get an Event log error
stating that.

Just as Kevin said, do not use the ISP or router's address as a DNS server
on any of your internal machines, other than the ISP's as a forwarder (don't
use the router as a forwarder either).

--
Regards,
Ace

Please direct all replies to the newsgroup so all can benefit.
This posting is provided "AS IS" with no warranties.

Ace Fekay, MCSE 2000, MCSE+I, MCSA, MCT, MVP
Microsoft Windows MVP - Active Directory
 
O> Can you tell me if I need to do the forwarding, [...]

Yes.

O> Is it necessary for my server to forward to the
O> ISP's DNS Servers [...]

No. It may, in certain circumstances, lower costs; and it may simplify
some aspects of configuration. But there are losses in security,
privacy, logging, and control that are concomitant with the use
of forwarding, and in certain circumstances it actually reduces
performance. One has to look at the specifics and decide what factors
outweigh the others and whether the forwardee's DNS service is even
suitable at all. Forwarding is _not_ a universal necessity, by any
means.

<URL:http://homepages.tesco.net./~J.deBoynePollard/FGA/dns-server-roles.html#ForwardingProxy>
 
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