Get familiar with basic Oracle Cloud Infrastructure security, network, and storage concepts.
Cloud resources in Oracle Cloud Infrastructure are created in logical compartments. You also create fine-grained policies to control access to the resources within a compartment.
You create instances within an Oracle Cloud Infrastructure region. You also specify an availability domain (AD), if supported in the selected region.
A virtual cloud network (VCN) is comprised of one or more subnets, and an instance is assigned to a specific subnet. Oracle Cloud Infrastructure does not allow you to reserve specific IP addresses for platform services.
A subnet's security lists permit and block traffic to and from specific IP addresses and ports.
Instances can communicate with resources outside of Oracle Cloud by using Oracle Cloud Infrastructure FastConnect, which provides a fast, dedicated connection to your on-premises network. Alternatively, use an IPSec VPN.
A bucket in Oracle Cloud Infrastructure Object Storage can be used to store files and share them with multiple instances. A user's generated authentication token (auth token) is required to access the bucket.
To learn more, see Key Concepts and Terminology in the Oracle Cloud Infrastructure documentation.