如何捕获传入/传出的连接 [英] How to catch an incomming/outgoing connection

问题描述

我要列出所有传入/传出的连接

授权/未经授权的连接都

帮帮我.

I want to list all incomming/outgoing connection

Authorised / UnAuthorized connection both

Help me.

推荐答案

使用 netstat 命令.它将列出所有连接.
这些链接可能会有所帮助.. netstat手册页和Windows上的netstat .

但是，请形成您的评论我想抓住这些连接.只是警告用户，如果用户要断开连接.则用户可以断开连接."，我认为代理或防火墙软件可以解决您的问题，请尝试

Use netstat command. It will list all connections.
These links may help.. netstat man page and netstat on windows.

But form your comment "I want to catch these kind a connection. Just alert user, if user want to diconnect. then user can disconnect.", I think a proxy or firewall software can solve your problem, try ashampoo firewall, it is free, and block whatever you want to block.

由于您使用编程语言标签发布了问题，因此我假设您要构建一个可以通知用户的程序.

为此，您可以使用例如(Win)PCap.它为您提供了一个程序api，使您可以捕获/监视网络流量.请参见 http://en.wikipedia.org/wiki/Pcap [

Since you posted your question with programming language tags, I assume you what to build a program that informs the user.

To do so you can use for example (Win)PCap. It offers a api for you''re program that allows you to capture / monitor the network traffic. See http://en.wikipedia.org/wiki/Pcap[^]

Regards
Piet

除了上述建议之外，您还需要购买

In addition to the advice above, you need to buy TCP/IP Illustrated, Volume 1: The Protocols.

Essentially you''re asking how to write a firewall and intrusion detection program. you have a wide range of protocols that you''ll need to understand, as it''s not as simple as just watching for connections. On a modern OS, there are lots of connections going in and out of your PC. Making sense of them is a huge task.

The netstat advice above, is a good start in getting a handle on what you''re PC is already doing.

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