From the course: Practical Cybersecurity for IT Professionals
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Explaining data communications
From the course: Practical Cybersecurity for IT Professionals
Explaining data communications
- [Instructor] There are times when we might want to take a deeper look at what's happening at the lowest level in our networks. If we think an intruder is in our network, we might want to look for them forcing their way into the systems. If we're concerned that somehow malware has got into one of our systems, we might want to look for signs that it's trying to connect to its command and control servers. Or we might just want to do a health check for unwanted network activity due to noisy system configurations. Before we start looking at a tool to do this we need to understand the basics of networking. If you're already familiar with networking you might want to skip to the next section in this module. Almost all networks nowadays use the internet protocol, which provides a set of communication methods. Networks carry data, and this data is carried in an application level protocol, such as HTTP and HTTPS, the hypertext…
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