Intra-VPC

Intra-VPC (Virtual Private Cloud) policy refers to the set of rules and configurations that manage how resources—such as virtual machines, containers, and databases—communicate within the same VPC. These policies enable administrators to segment networks, define access controls, and enforce routing rules, ensuring that traffic flows securely and efficiently between logical compartments or subnets.

Key mechanisms include security groups (virtual firewalls at the instance level), network access control lists (ACLs) at the subnet level, and detailed routing policies that direct traffic between subnets and gateways. Private endpoints and encryption settings further enhance security and compliance, keeping sensitive data within the VPC and out of the public internet.

Effective intra-VPC policy supports regulatory compliance, operational flexibility, and resource isolation, allowing organizations to tailor network behavior for different applications or environments. Monitoring and logging tools provide visibility and control, helping detect anomalies and maintain robust security postures.

While intra-VPC policies offer strong isolation, careful configuration is essential to avoid unintended access or segmentation faults. Alternatives for simpler environments may include basic security groups or dedicated VPCs for each workload.