【摘要】 从包过滤和应用代理防火墙技术入手,结合主机型和边界型防火墙的特点,对过滤网上不良数据的实现方法进行了具体分析,总结不同方法的特点和不足,为基于防火墙的数据过滤技术的进一步研究打下基础。更多还原

【Abstract】 <Abstrcat>This paper, mainly based on the firewall technologies of packet filtering and application proxy, combining the host-based and border firewall features, analyzes the practical methods of data filtering.Furthermore it summarizes the characteristics and disadvantages of different filtering ways.Therefore the deeper research work of data filtering can be based on the paper.更多还原