I tell you my situation, I installed Manage Engine Service Desk on Windows Server 2012 R2, I created its respective internal DNS record, the software is a web application and it makes use of tomcat and port 80. I have published the use of the tool Through the wan of our company - clients, it turns out that if I do not turn off the windows firewall, end users can not access the application.

My question.

 What rule should I create in the Windows Firewall? Is it an entry or exit rule?