网络综合实验——端口扫描并连接服务器

上传者: sinat_27984929 | 上传时间: 2022-05-23 20:03:03 | 文件大小: 120KB | 文件类型: RAR
1.编写一个端口扫描程序,能够显示某个IP或某段IP的计算机的某一个或某些端口是否正在工作。编写一个端口扫描程序,能够显示某个IP或某段IP的计算机的某一个或某些端口是否正在工作。(1)设定好一定的端口扫描范围,并设定每个端口扫描的次数,因为有可能有的端口一次扫描可能不通;(2)创建socket,通过socket的connect方法来连接远程IP地址以及对应的端口;(3)如果返回false,表示端口没有开放,否则端口开放;(4)选择其中一个活动端口,建立连接并发送一个数据块,服务器收到后原样返回客户端。

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