Help Center/ Relational Database Service/ User Guide/ Working with RDS for PostgreSQL/ Instance Connection/ Connection Management/ Viewing and Changing a Floating IP Address
Updated on 2025-11-26 GMT+08:00
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Viewing and Changing a Floating IP Address

Scenarios

You can change floating IP addresses after migrating on-premises databases or other cloud databases to RDS.

Constraints

After a floating IP address is changed, the domain name needs to be resolved again. This operation takes several minutes and may interrupt database connections. Therefore, you are advised to change a floating IP address during off-peak hours.

Only floating IPv4 addresses can be changed.

Procedure

You can use an automatically-assigned IP address when creating a DB instance.

You can change the floating IP address of an existing DB instance.

  1. Log in to the management console.
  2. Click in the upper left corner of the page and choose Databases > Relational Database Service.
  3. On the Instances page, click the target instance name to go to the Overview page.
  4. Under Floating IP Address, click Configure.
  5. Select an available IP address and click OK.

    An in-use IP address cannot be used as the new floating IP address of the DB instance.

Parent Topic: Connection Management