10.1. Understanding TCP/IP
The Internet runs on a suite of communications protocols commonly known as TCP/IP. This stands for Transmission Control Protocol/Internet Protocol, which were the first two protocols to be defined. Over the years, the suite has expanded to include other protocols, such as User Datagram Protocol (UDP), a stateless Internet Protocol used for streaming media and DNS (the protocol used to connect names with IP addresses and the most popular protocol used on the Internet). In order to understand network traffic, it's important to understand what TCP/IP is and how it works. It is the suite of protocols upon which the majority of modern networks, including the Internet, are based. It is also one of the most common vectors ...
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