Create a DNS Entry for the Web Server

Create an alias or CNAME record for the DNS server on which you configured IIS. This step makes sure that external host computers can connect to your Web server by using the "www" host name. To do this, follow these steps:

1.Open the DNS snap-in. To do this, click Start, point to Administrative Tools, and then click DNS.
2.Under DNS, expand Host name (where Host name is the host name of the DNS server).
3.Expand Forward Lookup Zones.
4.Under Forward Lookup Zones, right-click the zone that you want (for example,, and then click New Alias (CNAME).
5.In the Alias name box, type www.
6.In the Fully qualified name for target host box, type the fully qualified host name of the DNS server on which IIS is installed. For example, type, and then click OK.