Host name resolution

Lets skip ahead past my noob credentials and just assume thats what I am.
We have a Win2k3 Domain,
Internal domain name is
The External domain name is
We have a Sharepoint Server, installation was provided by our vendor. He built two portals, His and Ours. Both on Port 80.  He created a host header for His using the name,
I created a C-name in our DNS pointing His to  I also added to the local intranet sites in my browser.  Here's my problem: If I type in the server name into the address bar in my browser, it takes me to Our SharePoint Portal.  If I enter into the browser, it returns "Internet Explorer cannot display the webpage".  Here's the confusing part. If I add to my Hosts file.  It resolves to the correct portal on the server.  Any help would be greatly aprreciated.
Who is Participating?
Chris DentConnect With a Mentor PowerShell DeveloperCommented:

Okay cool.

Lets put something in place to make this work. It won't make it work from outside of your network, but that's not the goal here is it?

1. Open the DNS Console
2. Expand Forward Lookup Zones
3. Right click and select New Zone
4. Choose Primary, and you can leave AD Integrated ticked if that's an option here
5. Enter the name ""
6. Leave Dynamic Updates disabled

I think that's all of the steps, from memory so I hope I didn't miss any.

Anyway, that gives us a zone that will answer for that name. Now we need to add a record.

7. Select
8. Right click and select New Host (A) Record
9. Leave the name blank
10. Enter the IP Address for the server (afraid you can't use an Alias in this instance)

This will give you a record that looks like this:

(same as parent folder)   Host (A)   <IPAddress>

Now run:

ipconfig /flushdns

Then finally:




If those work, head to the browser and see if it's good :)

Chris DentPowerShell DeveloperCommented:


Could you run:


And check the response it gives you? We'd want the IP of the server concerned there. Given that it's an alias (CNAME) it should also respond with another name, it's important that you get the IP address as well.

gthmpdAuthor Commented:
Hey Chris,  Here's what I got after entering "nslookup" at a command prompt:
C:\Documents and Settings\user>nslookup
*** Can't find server name for address Non-existent domain
*** Can't find server name for address Non-existent domain
*** Default servers are not available
Server:  UnKnown
*** UnKnown can't find Non-existent domain
the IPs shown are to our internal DNS servers
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Chris DentPowerShell DeveloperCommented:

Could you also try:


That has the query run against one of Verizon's DNS servers. It tells us if everyone else in the world is able to resolve the name.

If that doesn't work, open up the DNS Console. Do you have a Forward Lookup Zone for Or just

gthmpdAuthor Commented:
Same thing:
C:\Documents and Settings\slauj>nslookup
*** can't find Non-existent domain

In our forward zones, we just have  As of now we are just trying to get this to resolve internally, if that helps.
gthmpdAuthor Commented:
Worked like a charm! Thanks for taking the time to walk me through this!
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