LAYERED DEFENSE
Security Architecture
A multi-layer defense model built for production. Every service hardened, every network isolated, every threat automatically detected and blocked.
By the Numbers
Security Layers4
Threat ResponseAdaptive
DetectionReal-time
IngressManaged
Defense in Depth
No single control is sufficient. Each layer independently limits the blast radius of any breach.
Layer 01 — Edge
Managed Edge Layer↓ passes to next layer
Layer 02 — Detection
Adaptive Threat Detection↓ passes to next layer
Layer 03 — Network
Network Segmentation↓ passes to next layer
Layer 04 — Container
Container Hardening
EdgeManaged Edge Layer
- Automated bot mitigation
- Managed traffic filtering
- DDoS mitigation
- Automated crawler management
DetectionAdaptive Threat Detection
- Reverse proxy traffic analysis
- Brute force scenarios
- HTTP probing detection
- Bad user agent blocking
- Community threat feeds
NetworkNetwork Segmentation
- Isolated internal service networks
- Databases unreachable externally
- No implicit container trust
ContainerContainer Hardening
- Reduced runtime privileges
- Privilege escalation restrictions
- Non-root users for critical services
- No privileged containers in production
Hardening Checklist
Every container is treated as a potential attack surface. Privileges are minimised.
✓no-new-privileges on all containers
✓cap_drop: ALL where possible
✓Non-root users for critical services
✓All databases on internal-only networks
✓Minimal external exposure
✓Automated threat response
✓Daily encrypted backups
✓Read-only filesystem where applicable
DNS Security
A centralized DNS filtering layer provides network-wide domain filtering, malicious domain protection and encrypted upstream resolution. The DNS layer is integrated into the broader security architecture to reduce unwanted traffic and improve visibility across internal services.
Go deeper
Read the technical guides
Step-by-step guides covering each security layer — from initial CrowdSec setup to container hardening patterns.