Re: Cannot Resolve Names Outside Windows Domain

I apologize for not being clear.

When the laptop leaves the domain, it cannot resolve names. NSlookup gives
the wrong result. As I posted previously, at your suggestion, I tried the
nslookup command outside of the windows domain. The result show nslookup is
trying to use the windows domain 192.168.1.2 even when that name server is
unavailable.

I thought the problem would be solved by getting nslookup to use the name
server provided by the ISP. Presumably if nslookup resolved to the IPS name
server, the laptop could resove names and would allow internet browsing? In
this sense nslookup is not working. If this is not the solution, what is?

Thanks for your help.

"Robert L. (MS-MVP)" wrote:

What do you mean "nslookup does not work correctly when I leave the domain"?
If you don't connect to the domain, which DNS you will use?

--
Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on
http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on
http://www.HowToNetworking.com


"MTUser2007" <MTUser2007@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:9033D609-CA4B-4C87-989F-37FCF7EEB736@xxxxxxxxxxxxxxxx
Thanks for the info. I did read this and other articles at your site.
Please
help me think through my understanding.

nslookup works properly when I am logged into the windows domain: Default
server nameofserver.nameofdomain.local, Address: 192.168.1.2

nslookup does not work correctly when I leave the domain. It still points
to
the domain server on the windows domain, the ip address, but the name is
listed as unknown.

You diagnose the problem as the Reverse DNS is not set up correctly on the
windows domain. If it was set up corrrectly, my laptop would be able to
get a
hold of the available DNS servers on the ISP outside of the domain.

I am correct in understanding your help? It seems counter-intuitiive to me
that a problem on the windows domain (where my laptop works fine) is
preventing my laptop working properly outside of the domain.

Thanks again for your help.

"Robert L. (MS-MVP)" wrote:

You may want to add the PTR records. This troubleshooting may help.

nslookup non-exstent domainCase Study – Nslookup can't find server name
for
address x.x.x.x and Non-existent domain. Situation: When the workstation
can’t
join the domain, ...
www.howtonetworking.com/casestudy/nslookup2.htm


--
Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on
http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on
http://www.HowToNetworking.com


"MTUser2007" <MTUser2007@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:2BB3CE80-D0CD-4AE1-8789-78B30794C7BA@xxxxxxxxxxxxxxxx
Hello, Thanks for the great suggestion. I was able to get out of the
domain
today and try this test. If you run nslookup, it says: can't find
server
name
for address 192.168.1.2, no response from server, default server
unknown
address 192.168.1.2.

192.168.1.2 is, of course, the ip address of the DNS server and DHCP
server
on our domain, the SBS 2003 server.

How do I get the laptop to use another name server?

"Robert L. (MS-MVP)" wrote:

Do this command: nslookup and then yahoo.com. Do you see any errors?

--
Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on
http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on
http://www.HowToNetworking.com


"MTUser2007" <MTUser2007@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:A72D7415-3C27-46C3-8A15-7A9948B29E53@xxxxxxxxxxxxxxxx
gI work in a windows domain and connect via wireless on a Lenovo
T6op
running
XPSP2. When at work, I have no problems. When I leave the domain, I
cannot
resolve names, I cannot browse or send email, Skype works.

Troubleshooting reveals that I can ping IPs and load websites that
do
not
require name resolution. Ipsconfig shows that I have an assigned DNS
server
that I can ping. Overriding the DNS servers in the network adapter
does
not
help.

Lastly, loging into my notebook as administrator does not fix the
problem.

Any help appreciated.






.

Relevant Pages

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