Network Security
Goals
- Define network security, including network protection (e.g., security in design, firewalls, network intrusion detection systems) and network traffic protection (e.g., VPNs, wireless network security, secure protocols)
- Identify network security tools such as wireless detectors, port scanners, packet sniffers, and honeypots
- Compare the abilities of physical, logical, and administrative controls, and combinations of same, to protect resources
- Categorize cybersecurity principles and defense concepts according to area of impact
- Classify security principles and actions according to the types of attacks they mitigate or eliminate
- Identify the key information or critical fields to be analyzed, using a range of cybersecurity tools to determine vulnerabilities or possible attacks
- Classify cybersecurity tools according to the type of vulnerability they find/identify
- Classify attacks according to the cybersecurity concept or principle that was violated
Network security is securing computer network infrastructure.
2 Ways to Protect Networks
- Protect the network
- Protect the network traffic
Protecting Networks
- design networks securely
- Implement security tools
Protecting Network Traffic
In addition to protecting your networks from intrusion, you need to separately protect the traffic that flows over them.
Attackers can intercept data from both wired and wireless networks, often with little effort, depending on the design of the network.