Computer Networking › Section A · Computer networks and the internet › Topic A.6
Networks under attack
The features that make the internet useful, open access, shared links and packets that anyone can send, also make it a target. This topic surveys the main ways networks are attacked and the ideas behind the defences, which Section H develops in full.
In this topic
- A network designed for trust
- Malware arriving over the network
- Denial of service
- Why distributed attacks are harder to stop
- Worked example: sizing a flood
- Defending against floods
- Packet sniffing
- Masquerading: IP spoofing
- Worked example: classifying incidents
- Common mistakes to avoid
- Key takeaways
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