I'm new to the Palo Alto ecosystem and have been asked to re-write some firewall rules as part of a migration. In this example, I want to allow the public access to a mail server.
I am using a Service Group to open up explicit ports for this task, but was dong some reading about using Applications too. The applications didn't really suit my needs, but it left me with a question. If I configure the Applications & Service, does it act like an "and" where ports from both would be allowed?
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