外网IP变动自动发邮件通知，运行在局域网内都计算机上,当外网地址变动时自动发送邮件通知...

优秀的扫描工具，可以使用fingerprint来判断操作系统类型- The outstanding scanning tool, may use fingerprint to judge the operating system type

IP下查该SERVER里网站domain-IP under the SERVER in the site search domain

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本实例是用一个树型控件动态的显示了所有流经本计算机的网络封包。-This example is the dynamic control with a tree display of all the computer network through the packet.

编写漏洞扫描器探查远程服务器上可能存在的具有安全隐患的文件是否存在，它的socket建立过程和上面 的端口扫描器是相同的，所不同的是漏洞扫描器通常使用80端口，然后对这个端口发送一个GET文件的请求，服务器接收到请求会返回文件内容，如果文件不存 在则返回一个错误提示，通过接收返回内容可以判断文件是否存在。发送和接收数据需要使用函数send()和recv()，另外对流中存在的字符串进行判断 需要使用函数strstr()，这除了需要具备socket函数库的知识以外，还需要一些有关string函数库的知识。-The preparation of vulnerability scanners detect a remote server that may exist with the security risks of the file exists, and its socket to establish the process and above the port scanner is the same, the difference is that vulnerability scanners typically use port 80, and then on the port send a GET request for the document, the server receives the request will return the contents of the documents, if the file does not exist then return an error message, through the receiver can determine whether to return to the contents of the file exists. Send and receive data need to use the function send () and recv (), exists in another string convection judge need to use the function strstr (), which apart from the need to have the socket lib

耐威网关软件防火墙简易版-Granville resistant gateway software firewall summary version

icmp包定制程序-icmp package has custom-made the procedure

通过发送自己构造的数据包来检测端口是否可以连接 -Detecting the port whether can be connected through sending the your own packets

Nessus的应用与漏洞扫描技术的研究，提供详尽漏洞扫描-Nessus loopholes in the application and scanning technology, provide detailed vulnerability scanning

IDS based on MySQL........uses ACID, mysql and snort-IDS based on MySQL........uses ACID, mysql and snort............