(Configure Apache virtual host under Windows2003 1. Need: as long as one fixed network IP service period, different domain names can use different technologies, such as ASP, PHP, J2EE, etc. Of course, it is mainly based on the management of J2EE. 2. Solution: One Apache service (A1) acts as a virtual host, the second Apache service (A2) parses PHP scripts, the third Apache service (A3) implements Tomcat cluster, and in addition, uses IIS to parse ASP programs.)