From the course: Data-Driven Network Security Essentials
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Packet Capture
- [Instructor] One of the primary sources of network data is message exchanged between applications connected through a computer network. These messages called packets enable the network applications to collaborate to accomplish a particular task. For example, sending an email. Packets consist of headers, trailers and application data. The headers and trailers contain information necessary to deliver packets from one network device to the other. The network on which the packets originate and are received is called the host. When a large number of devices are communicating to each other, it's important to have strict rules. Protocols are documented agreements dictating how different parties in a network are expected to interact with each other. Imagine this. You're building your own custom web browser, and inadvertently introduce an error in the code affecting a web page request. When the web browser sends a request to the web server, the web server will recognize that it's a bad…
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