Chapter 13. Analyzing Network Packets
Introduction
Network programming is very much concerned with moving data from client to server, but when you need to look at what is moving between the client and server, you encounter a problem.
In most cases, there is no need for a program to know what data is being received by other applications. Furthermore, it is a security risk to have one program that could scan third-party applications, such as FTP software, and retrieve the username and password for your Web site; however, if you are building a value-added package to a third-party application, such as a content filter for a proprietary or legacy application, tapping into what is being sent between client and server is a good start.
Packet capture isn’t ...
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