Network Security
Protecting network infrastructure and communications
Network Security encompasses the policies, practices, and technologies designed to protect the integrity, confidentiality, and accessibility of computer networks and data.
Key Components
- Firewalls - Perimeter and internal traffic filtering
- Intrusion Detection/Prevention - IDS/IPS systems
- VPNs - Secure remote access and site-to-site connectivity
- Network Access Control - Endpoint compliance and authentication
- Segmentation - Isolating network zones and resources
Security Technologies
- Next-generation firewalls (NGFW)
- Web application firewalls (WAF)
- Network detection and response (NDR)
- Secure web gateways
- DNS security
Monitoring and Analysis
- Network traffic analysis
- Flow data collection (NetFlow, sFlow)
- Packet capture and analysis
- Security information and event management (SIEM)
- Threat intelligence integration
Architecture Principles
- Defense in depth
- Zero Trust networking
- Least privilege access
- Encryption in transit
- Network micro-segmentation
