2.2. Network Attacks and Security Issues

In this section, we provide a very brief overview of communications across networks and discuss some specific attacks that illustrate how security is impacted in networks.

2.2.1. Network Communications

It is instructive to examine, at a very high level, how two hosts on the Internet usually make connections to one another to understand how attacks occur over the network. However, our goal here is not to explain protocols from a communications perspective (such as performance, reliability, and so on) or explore their details. Please note that what is described below corresponds only to a typical scenario and there are exceptions and many different possible variations for communications across the Internet. ...

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