网络扫描技术与安全防御策略研究

Research on Network Scan Technology and Security Recovery Tactics

介绍目前常用的网络扫描技术的原理与分类,并给出一个TCP SYN扫描的程序实现,它能通过不完整的三次握手扫描远程主机的端口开放情况,最后还从安全防御的角度,提出了检测非法扫描的安全防御策略新技术。

After introducing the commonly used network scan technology and its classification, a TCP SYN scan program as an example is given. It can scan the remote network without complete three - way handshake. Some valuable security tactics are given and these techniques can detect illegal network scan and attack effectively.