RE: varius DNS issues

This is the nslookup result from 2 different PC's:
C:\Documents and Settings\Administrator.STEALTHC>nslookup
*** Can't find server name for address 192.168.1.2: Non-existent domain
Default Server: dns1-nyc.paetec.net
Address: 66.153.50.66

www.stealthcomponents.com
Server: dns1-nyc.paetec.net
Address: 66.153.50.66

Non-authoritative answer:
Name: www.stealthcomponents.com.stealthc.stealthcomponents.com
Address: 67.199.68.203

The answer is strange where it adds the ad name and domain name to the end.
I found this a few other websites it tried that were problems in the past.

When I run a tracert I get: Unable to resolve target system name
www.stealthcomponents.com.

The server name for the internal web site is stealthcor01 and the internal
DNS does show the correct ip addres for it but sometimes when user put that
name into the browser they getpage cannot be displayed or it redirects them
to www.stealthcomponents.com. I know there is some sort of problems on the
internal DNS but I am not sure what.

The internal IP range is 192.168.1.x.

Thank you for all of your help.



"James Yeomans BSc, MCSE, MCTS" wrote:

Website works fine externally!
With regards to internal run the following command on one of your
workstations:
nslookup
nslookup> www.stealthcomponents.com

see what A record it returns, if correct it should be: 67.199.68.203
If anything different then your DNS is not working corectly.

Next from a machine that can't reach the external website run
tracert>www.stealthcomponents.com
and see if you can contact the website and where the connection falls down.

On your internal DNS check what your internal website's server IP is set as
and make sure that is an internal private ip on your lan ip range. If your
internal clients are resolving this to an external IP then it suggests
something wrong with internal DNS.

Can you alos confirm that you are using a private IP range on your internal
network?

Cheers
James.
--
James Yeomans, BSc, MCSE, MCTS
Ask me directly at: http://www.justaskjames.co.uk


"Brad Mason" wrote:

Hi James, Thanks for the response.

The website is hosted externally be the company that helped develop the site.
The DNS for the website is also external.
Our Domain name is stealthcomponents.com and the AD is
stealthc.stealthcomponents.com

The website is www.stealthcomponents.com

Thanks for your help.

"James Yeomans BSc, MCSE, MCTS" wrote:

Hi Brad, can you answer the following questions, that should help in a
diagnosis?

1) Where is your website hosted externally?
2) Where is the DNS for your website hosted? Externally?
3) What is the full name of your AD domain and do you use AD integrated DNS?

If your AD domain and internet domain are the same that will almost
certainly be the problem, however there is an easy solution for you, you can
just create the appropriate records in your AD DNS server to allow internal
clients to resolve the name of the external website.

If you post the address of the website on here that would help greatly.
James.
--
James Yeomans, BSc, MCSE, MCTS
Ask me directly at: http://www.justaskjames.co.uk


"Brad Mason" wrote:

I am having a few different issues with our DNS. I am not a DNS expert so I
am reaching out for some assistance.

1) I am getting complaints that customers cannot get to our website.

2) Employees in the office cannot get to our website and it is hosted
externally.

3) Emplyees cannot get to internal website used for our ERP. It sometimes
relsoves to our website or page cannot be found and they use the ip address
for the server to get to it.

4) Some employees cannot get to the ERP server from outside the office. It
resolves to the website or they get page cannot be displayed.

Is there a way to purge our DNS and rebuild it?

Any assistance would be greatly appreciated.

Brad


.

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