NetworkingLesson 5Free preview
CS Networking Basics
This lesson is part of Cyber Security · All levels
Summary
Understanding the basics of networking is the primary foundation of cybersecurity because almost all attacks pass through the network. Some key concepts include IP addresses, MAC addresses, DNS, as well as devices such as routers, switches, and access points. By understanding how data moves, we can recognize normal behavior and detect anomalies.
Key points
- IP addresses are logical and variable; MAC addresses are NIC physical addresses.
- DNS translates domain names into IP addresses.
- The router connects the network and directs the packet to the destination; the switch connects the host in a single network.
- LANs cover networks in confined areas such as homes or offices.
- Common protocols: HTTP/HTTPS, DNS, DHCP, FTP, SMTP.
Full lesson
Code examples and quizzes
Full lessons, code examples, and quizzes are available to subscribers. 5 questions.