随着政府、企业、个人主机的网络安全需求的与日俱增,防火墙技术应运而生。传统的边界式防火墙是企业内部网络与外部网络的一道屏障,但是其无法对内部网络访问进行控制,也没有对黑客行为进行入侵检测和阻断的功能。企业迫切需要一套能够真正解决网络内部和外部、防火墙和防黑客 With the ever-increasing network security needs of governments, enterprises and individual hosts, firewall technology has emerged. Traditional border-based firewalls are a barrier between the corporate intranet and the external network. However, they can not control internal network access and do not have intrusion detection and blocking capabilities for hacking. Enterprises urgently need to be able to really solve a network of internal and external, firewalls and anti-hacker