Can I Access a GaussDB(for MySQL) Instance over an Intranet Connection Across Regions?

By default, DB instances cannot be accessed over an intranet across regions. Cloud services in different regions cannot communicate with each other over an intranet. You can use Cloud Connect (CC) or Virtual Private Network (VPN) to connect to instances across regions.

• CC allows you to connect two VPCs of the same account or different accounts even if they are in different regions. For details, see Communication Among VPCs of the Same Account.
• VPN uses an encrypted tunnel to connect VPCs in different regions and sends traffic over the Internet. It is inexpensive, easy to configure, and easy to use. However, the quality of VPN connections depends on the quality of Internet connections. For details, see Connecting an On-Premises Data Center to a VPC Through a VPN.