防火墙技术一直以来都是网络安全领域中最需要的防护技术,在电力系统的网络中也得到了广泛的应用。但随着网络技术的发展,防火墙对于操作系统本身或应用服务存在的漏洞却无能为力。而采用网闸和防火墙配合防护,则能很好地弥补防火墙的缺陷,并可对高安全度网络和重点防护数据进行针对性的防护,它们可以共同搭建高效、安全的信息网络系统。 Firewall technology has always been the most needed protection technology in the field of network security and has been widely used in the power system network. However, with the development of network technology, the firewall is powerless to the operating system itself or the application service. The use of gatekeepers and firewalls with the protection, you can make up for the firewall flaws, and high security network and focus on protective data targeted protection, they can work together to build efficient and secure information network system.