DNS external and internal. I have setup Windows 2003 Active Directory and DNS Server on same Box. The address is private. My email /web services are hosted by yahoo. When I try to go to the website using any of XP clients it says page not displayed, same thing when I try to go to mail.companyname.com hosted by yahoo, it says page not displayed. I am using the private address as the DNS and my firewall private ip (DNS forwarding) as secondary. How can I solve this problem. I do not have problem accessing another website.