Using internet domain name in local network

We have a win2003 server in our local network and we use this server to host
our web portal that writen with c# asp.net for internet and intranet
Environments.
The local name of this web server on our network is "WebServerPortal".
if we use WebSerberPortal in web browsers address bar like
http://webserverportal it works fine for local network(intranet) users but
the internet domain name does not work.
I mean if i write "http://www.companyname.com" to web browser in local
network, an authorization forms appears and ask for username and password.
And there is an expression on that form, it says
----------------------------------------------
The server companyname.com at USR ADSL Gateway requires a username and
password.

Warning: This server is requesting that your username and password be sent
in an insecure manner (basic authentication without a secure connection).
----------------------------------------------
But from the internet the domain name "http://www.companyname.com" works
fine.

How can we use our internet domain name(www.companyname.com) in local
network ?

Thanks in advance..


PS: http://www.companyname.com is a sample name.

"Ned White" <nedwhite@> wrote
> How can we use our internet domain name(www.companyname.com) in local
> network ?

Assuming your active directory domain name is companyname.com, you need to
make a DNS entry for "www" that points to the internal address of your
webserver.

You have to run Split-DNS. In Split-DNS your AD/DNS Server will have two
Zones
Zone #1 = AD Domain name
Zone #2 = Public Domain Name

Configure the Public Domain Zone's host records with the proper IP#. The
Public Zone is not dynamically updated. You have to maintain it yourself.

--
Phillip Windell
www.wandtv.com

The views expressed, are my own and not those of my employer, or Microsoft,
or anyone else associated with me, including my cats.
-----------------------------------------------------

"Ned White" <nedwhite@> wrote in message
news:(E-Mail Removed)...
> We have a win2003 server in our local network and we use this server to
> host our web portal that writen with c# asp.net for internet and intranet
> Environments.
> The local name of this web server on our network is "WebServerPortal".
> if we use WebSerberPortal in web browsers address bar like
> http://webserverportal it works fine for local network(intranet) users
> but the internet domain name does not work.
> I mean if i write "http://www.companyname.com" to web browser in local
> network, an authorization forms appears and ask for username and password.
> And there is an expression on that form, it says
> ----------------------------------------------
> The server companyname.com at USR ADSL Gateway requires a username and
> password.
>
> Warning: This server is requesting that your username and password be sent
> in an insecure manner (basic authentication without a secure connection).
> ----------------------------------------------
> But from the internet the domain name "http://www.companyname.com" works
> fine.
>
> How can we use our internet domain name(www.companyname.com) in local
> network ?
>
> Thanks in advance..
>
>
> PS: http://www.companyname.com is a sample name.
>