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I see that it is recommended to you advanced configuration for public productions systems.
I also decided that my oracle DB will be installed on a machine and apex listener on a different machine. My question now is if I need a third machine to achieve that configuration where the HTTP server communicates with APEX listener and they are separated by a firewall or they can both be on the same machine and still achieve that?
I hope to have apache with tomcat plus apex listener on a single machine and still obtain the needed security.
I understand that http server should be separated by apex listener but it should be like a network firewall or…it can be other separation type?
I am at the beginnings of web application infrastructure so I need your help.