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网络防火墙技术作为内部网络与外部网络之间的第一道安全屏障,是最先受到人们重视的网络安全技术,就其产品的主流趋势而言,大多数代理服务器(也称应用网关)也集成了包滤技术,这两种技术的混合应用显然比单独使用更具有大的优势。
As the first security barrier between the internal network and the external network, the network firewall technology is the first network security technology that people attach importance to. Most of the proxy servers (also called application gateways) are also integrated in terms of the mainstream trend of their products The packet filter technology, the mixed application of these two technologies is obviously more advantages than single use.