IIS Configuration

I started my career in web development with a Web Portal company, Indias-best.com year 2000. The company plan is to host 14 sites for each city in India. bangalorebest.com, chennaibest.com, jaipurbest.com, hyderabadbest.com and etc.

At that time I know how to develop the website but not hosting. May doubts, too much confussion.

I planned to develop all sites in Microsoft Active Server Pages (ASP), since i completed my IBM eBusiness course from Pentasoft at that time. I played little bit with ASP & IIS. I know how to create a website and vertual directory. To create seperate domains I used to give different port number. After some days I found that HOST file configuration, to map the header of new domain to the site. But I used to do it in all the machines. We were a team of 25+ including content writers, marketing team and managers. We used to make entries in each machine HOST file & used to sed As I know each domain has to be mapped to an IP. One guy says each domain name has to have IP.