My questions are:
- Do I use "pf" or "ipfw"?
- How do I forward traffic from port 80 (HTTP) on the external interface (en0) to port 8080 on localhost (127.0.0.1)?
- How do I allow traffic on port 22 (SSH) from any IP address?
- How do I allow traffic on port 8100 from a specific IP address?
- How do I make all this persistent, so the rules get applied when the system boots?
I am running OS X Server 10.8.3.