Mac 10.12 Advanced Firewall Pfctl Tutorial collection (to be practiced)

Use IPFW before Mac 10.10. Then upgrade to Pfctl. Because the Mac comes with a GUI firewall that can only be released for software and cannot be managed for specific ports inbound and outbound. So using PFCTL can solve this kind of problem.

The collection tutorials are as follows:

Http://man.linuxde.net/pfctl

https://my.oschina.net/china008/blog/343049

Http://blog.chinaunix.net/uid-20674714-id-90862.html

https://cn2.chionlab.moe/2016/02/01/use-pf-on-osx/

Http://www.jianshu.com/p/6052831a8e91

Mac 10.12 Advanced Firewall Pfctl Tutorial collection (to be practiced)