Application Defense: WAF, SIEM & VPN Gateways

Layer 7 Defense

Applications are the new perimeter. Phase 4 introduces advanced tools to secure web traffic and monitor for breaches.

Web Application Firewall (WAF)

Standard firewalls miss attacks inside HTTP packets. A WAF inspects the payload.

• SQL Injection: See how a WAF blocks malicious queries like OR 1=1.
• XSS Protection: Prevent script injection attacks.
• ModSecurity: View realistic WAF configurations.

SIEM (Security Information and Event Management)

Logs are useless if nobody reads them. A SIEM aggregates logs to find threats. Practice running queries to detect failed logins and correlation alerts.

VPN Gateways

Connect offices securely using IPsec Site-to-Site VPNs. Master the IKE Phase 1 and Phase 2 negotiations required to establish a secure encrypted tunnel.