 | A node (computer) that hosts one or more servers. | | |
 | A web container. |  | An EJB container. |
 | A JOnAS instance that hosts a web container. |  | A JOnAS instance that hosts an EJB container. |
 | A JOnAS instance that hosts a web container and an EJB
container. | | |
 | An Apache server with the mod_jk module. | | |