Public vs Private Subnets

Subnets are used to organize resources within a VPC.

Public Subnet:

• Has a route to an Internet Gateway (IGW).
• Used for resources that must be reachable from the internet (e.g., Web Servers).

Private Subnet:

• Does NOT have a direct route to the IGW.
• Used for resources that should not be exposed (e.g., Databases).
• Can access the internet via a NAT Gateway (placed in a public subnet).