To set more than one website on server you are required to set Host Headers
Procedure to set Host Headers
1) Load  IIS (Start >>> Run>>>type “inetmgr” hit enter)

2) On left pane, expand server name, then click “Web Sites“>>>right click on right pane>>>select  New>>>Web Site

3) Website Creation Wizard will open , here you have freedom to write absolutely anything (we will write – Testing) >>> Click Next

4)Under IP address and Port settings
Enter Ip address and port number (Default port – 80) and Host Header for the website >>> Click Next

5) Enter the path for Websites Home Directory and tick (check) “Allow anonymous access to this website” >>> Click Next

6) Under Website Access Permissions , necessary permissions for using ASP , Run Scripts can be used as per requirement. >>> Click Next

7) Click Finish and you’re done.