External Zone
Internet / Attack Surface
Public exposure, phishing, malicious traffic, and external threats.
Perimeter
NGFW / IPS / VPN
Traffic inspection, application control, VPN, and perimeter protection.
Cloud Layer
Cloud / SaaS / SASE
Secure remote access, cloud visibility, and policy enforcement.
DMZ
WAF / Public Services
Protect portals, published apps, web services, and external access.
Core Network
Segmentation / VLANs
Separate users, servers, guests, admins, and sensitive systems.
Identity
MFA / PAM / IAM
Control access, privileged accounts, and authentication policies.
User Zone
Endpoints / EDR
Endpoint protection, device posture, and ransomware prevention.
Data Center
Server Farm / Apps
Business applications, databases, and critical workloads.
Monitoring
SIEM / SOC / Logs
Centralized logs, correlation, alerts, and response visibility.
Resilience
Backup / DR / Isolation
Protected backup, recovery readiness, and continuity planning.