Chapter 3: Designing a Network on Oracle Cloud Infrastructure
Virtual Cloud Networks (VCNs) provide network connectivity to all of the OCI services with a fully customizable private network in the Oracle cloud. Customers can bring in their own IP segment and assign it to their VCN. They can create their own network topology using guided workflows to connect the virtual subnets with virtual routers and set up firewall rules. Optionally, the VCN can be configured to have internet access and/or VPN access. Customers can then launch bare metal or virtual machine instances in VCN subnets, and the instances will be assigned a private IP address from that same subnet. Optionally, the public IP address can also be assigned to an instance that will enable communication with the internet. Customers can also use security lists (groups of firewall rules) that can be associated with an instance. A VCN is regional and does not span multiple regions. A VCN can span across multiple Availability Domains...