Secure Three-Tier Cloud Network
Cloud Networking
Overview
Separate web, application and database tiers. Permit only required flows, such as load balancer to application and application to database. Management access and outbound dependencies need explicit controls. Do not expose a database publicly merely because it uses authentication.
Protocol stages
- 1Public load balancer
- 2Private app tier
- 3Private database
- 4Restricted management
Interactive exercise
Knowledge check
Which flow best follows three-tier least privilege?
Educational model — not real hardware, traffic or official certification.