What Should I Do If I Can't Connect to My ECS (PostgreSQL) Instance?

Updated on 2023-03-03 GMT+08:00

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Error message: Connection refused (Connection refused).

Error cause: The port number of the self-built database is incorrect, or the network is disconnected.

Solution: Ensure that the port number of the self-built database is correct and that the port is included in the security group rule and firewall whitelist. For details, see How Do I View and Modify ECS Security Group Rules? and How Do I View and Modify Firewall Rules?.

Parent topic: Connection Management (Development Tool)

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