networkingsecurityinfrastructuretutorial
Network Security Fundamentals You Must Know
Understanding network security principles, common attacks, and defense strategies for modern infrastructure.
Network security is the foundation of IT infrastructure protection. Let's explore the key concepts and practical defenses.
OSI Model Security
- 1Physical layer - Cable security, access controls
- 2Data link - MAC filtering, VLAN segmentation
- 3Network - Firewalls, IDS/IPS
- 4Transport - TLS/SSL encryption
- 5Application - WAF, input validation
Common Network Attacks
- Man-in-the-middle
- DDoS attacks
- DNS spoofing
- ARP poisoning
Defense Strategies
- Network segmentation
- Zero trust architecture
- Regular vulnerability scanning
- Employee security training