因特网的发展给人们的生活带来了方便,同时因特网也面临着威胁。因此如何使用有效的方法降低网络威胁越来越受到人们的关注。本文阐述了防火墙的攻击方法,指出防火墙的发展方向。构建一个个人防火墙,就可以实现对内部网络的保护。 The development of the Internet has brought convenience to people’s lives, and the Internet also faces threats. Therefore, how to use effective methods to reduce cyber threats has drawn more and more attention. This article describes the firewall attack methods, pointing out the direction of the firewall. Build a personal firewall, you can achieve the protection of the internal network.