Description: 用delphi做的TCP的测试程序，主要介绍idTcpclient和idTcpServer的使用。此包两个程序，一个是tcp客户端向服务端发送普通的字符串。服务端对客户端发来的字符串进行显示，并返回信息给客户端。另一个程序介绍TCP客户端如何发送由多个记录组成的数据包到服务端。服务端如何校验消息头和提取消息内容，并返回应答消息包给客户端。代码中每句都有解释，并且有一篇本人自己写的关于本程序的思路和代码意思。目的是希望大家能够互相学习。
程序是使用delphixe3写的，indy版本是indy10.5.9-Delphi do with TCP test procedures, introduces idTcpclient and idTcpServer use. This package two programs, one is tcp client sends to the service of ordinary strings. Server sent to the client to display a string and returns the information to the client. Another procedure describes how to send TCP client multiple records of data packets to the server. How to check the server message header and extract the message content, and returns a response packet to the client. Code each sentence are explained, and there is a I wrote about the idea of this program and code meant. In the hope that we can learn from each other. Procedure is to use delphixe3 written, indy version is indy10.5.9 Platform: |
Size: 513024 |
Author:jonahking |
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Description: 驱动级域名劫持
就是访问A.com转到b.com，当然如果改成访问A就丢包，那就变成拦截指定网站了。首先用抓包工具发现，访问某网站时，（如果本地没有该网站的DNS缓存）首先会发DNS查询包（UDP），然后会与该网站建立连接，然后，发http请求包。
观察包内容，需要把发出的包的目标改成我们的目标，然后把响应的包中我们改过的东西改回来，就是欺上瞒下。代码不多，重点是演示了如何获取TCP与UDP的接收到包的内容。仅适用于XP：
bin会将www.baidu.com劫持到ip138.com-Drive level domain hijacking is to visit A.com to b.com, of course, if A is dropping into access, it becomes blocked designated site. First discovered by capturing tool, visit a website, (if there is no local DNS cache of the site) will first send a DNS query packets (UDP), then establish a connection with the site, and then send http request packet. Observe the contents of the package, we need to change the target packet sent our goal, then put the package in response to the things we turn to come back, that is, superiors and subordinates. Code much focus is to demonstrate how to get the contents of TCP and UDP packets received. Only applies to XP: bin will www.baidu.com hijacked to ip138.com Platform: |
Size: 5120 |
Author:ssss |
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Search - how to send packet to tcp