Defense in depth for networks
On This Lesson 4 topics
This lesson is planned. The outline below lists the topics it will cover. The full lesson has not been published yet.
In this lesson
layer network controls so one failure does not expose everything.
Planned topics
- Layers: edge protection, perimeter filtering, segmentation, host-level rules, and identity checks inside.
- Assume any single layer will eventually fail or be misconfigured.
- Deny by default; open only what is needed, for as few sources as possible.
- Log at each layer to detect and investigate.
- Network controls complement identity-based controls; they do not replace them.
Draft outline details
Demonstration
concentric rings: CDN and DDoS protection, WAF, load balancer, service firewall, data tier rules, with identity checks across all of them.
Check your understanding
Can the network perimeter alone protect the platform?
Show answer
No; identity and per-service controls are also needed.
Practice
Apply this lesson with the module's lab, exercises and quiz.
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