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Internet的迅猛发展,使得防火墙产品在短短的几年内异军突起,很快形成了一个产业:1995年,刚刚面市的防火墙产品市场量还不到1万套,到1996年底,就猛增到10万套;据国际权威商业调查机构的预测,防火墙市场将以173％的复合增长率增长,到2000年将达150万套,市场营业额将从1995年的1.6亿美元上升到2000年的9.8亿美元。 防火墙技术的发展经历了基于路由器的防火墙、用户化的防火墙工具套、建立在通用操作系统上的防火墙、具有安全操作系统的防火墙四个阶段,现在处于第四阶段,即第四代防火墙的阶段。
The rapid development of the Internet has led to the sudden emergence of firewall products in just a few years and an industry soon formed. In 1995, the market size of the newly introduced firewall products was less than 10,000 and by the end of 1996, it surged to 100,000 According to the forecast of the international authoritative business investigation agency, the firewall market will grow at a compound annual growth rate of 173% and reach 1.5 million sets by 2000. The market turnover will rise from 160 million U.S. dollars in 1995 to 980 million in 2000 Dollars. Firewall technology has undergone a four-phase firewall-based firewall, customized firewall tool kits, firewalls built on common operating systems, firewalls with secure operating systems, and now in the fourth phase of the fourth-generation firewall .