Summary.

Network Security Tools

  • Firewalls
    • Network-Based
      • Hardware and/or software that controls network traffic
      • Could be dedicated device
      • Firewalls often provide NAT and VPN Capabilities
      • Packet Filter
      • Stateful packet Filter
      • Application layer gateway or proxy
    • Host-Based
      • Modern OS have built-in host-based Firewalls
      • Third-party vendors
      • End point
  • IDS
    • Signature based approach
    • Anomaly detection approach
  • IPS
    • Identifies and blocks packets