Connecting to a DB Instance

An RDS DB instance can be connected through a private network or a public network.

Table 1 RDS connection methods

Connect Through	IP Address	Scenarios	Description
Private network	Floating IP	RDS provides a floating IP address by default. When your applications are deployed on an ECS that is in the same region and VPC as RDS, you are advised to use a floating IP address to connect to the RDS DB instance through the ECS.	Secure and excellent performance Recommended
Public network	EIP	If you cannot access an RDS DB instance through a floating IP address, bind an EIP to the DB instance and connect the DB instance to the ECS through the EIP.	A relatively lower level of security compared to other connection methods To achieve a higher transmission rate and security level, you are advised to migrate your applications to an ECS that is in the same VPC as your RDS DB instance and use a floating IP address to access the DB instance.

Note

• VPC: indicates the Virtual Private Cloud.

• ECS: indicates the Elastic Cloud Server.

• If the ECS is in the same VPC as your RDS DB instance, you do not need to apply for an EIP.

Figure 1 illustrates the connection over a private network or a public network.

Figure 1 DB instance connection

last updated: 2024-05-17 01:35