❑ Web server : It is a server software provides static content to the client(web browser).
* Static contents : jpg, gif, html etc.
* Products : IIS, Apache, NGINX tMax WebtoB
❑ WAS(Web Application Server) : Web server + Container.
* Container : It is a software executes the web application for dynamic processing.
* Products : Tomcat, tMax jeus, IBM Web spere, JBOSS
※ Processing sequence : Client's request → Web server → WAS → Web server → Response