> ## Documentation Index
> Fetch the complete documentation index at: https://docs.usenubis.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Virtual Private Cloud (VPC)

> Isolated networking environments for your high-security workloads.

## VPC Core Concepts

A VPC is a private network dedicated to your Nubis organization. It is logically isolated from other virtual networks in the Nubis cloud.

### Default VPC

Every region in your account comes with a default VPC, allowing you to launch resources immediately without manual network configuration.

### Custom VPCs

For advanced security architectures, you can create custom VPCs:

1. **IP Range**: Define your own CIDR blocks (e.g., `10.0.0.0/16`).
2. **Subnets**: Divide your VPC into multiple subnets across different availability zones.
3. **Routing**: Configure custom routing tables to control traffic flow between subnets and the internet.

## Internal Communication

Resources within the same VPC can communicate using private IP addresses. This traffic:

* **Never leaves the Nubis network**.
* **Is not billed for bandwidth**.
* **Provides lower latency** than public internet communication.

## VPC Peering

Connect two VPCs together to allow resources in different networks to communicate as if they were in the same network, even across different regions.