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防火墙技术是网络安全领域应用较普遍的一种技术,传统上防火墙基本分为两大类,即包过滤防火墙和应用网关防火墙,这两种防火墙由于其受限的地方,逐渐不能适应当前的需求,因此新一代的防火墙Stateful-inspection防火墙应运而生,这种防火墙既继承了传统防火墙的优点,又克服了传统防火墙的缺点,是一种革新式的防火墙,本文将对此防火墙技术加以介绍。
Firewall technology is a technique commonly used in the field of network security. Traditionally, firewalls fall into two broad categories, that is, packet-filtering firewalls and application gateway firewalls. Due to their limited space, firewalls are unable to adapt to current needs gradually Therefore, a new generation of Stateful-inspection firewall arises at the historic moment. This kind of firewall not only inherits the advantages of traditional firewall, but also overcomes the shortcomings of traditional firewall. It is an innovative type of firewall. This article will introduce this firewall technology.