18. Network Security Fundamentals
Network security is the backbone of all cybersecurity defence. This mind map covers protocols, devices, monitoring tools, and common attack vectors from the ground up.
Topics Covered
- OSI model security at each layer
- TCP/IP security and hijacking
- Firewalls: stateful vs NGFW
- IDS/IPS: signature vs anomaly
- Network segmentation: DMZ, VLANs
- VPN technologies
- Wireshark and packet analysis
- MITM and ARP spoofing
- DNS attacks and DNS security