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What Should I Do If I Can't Connect to My ECS (PostgreSQL) Instance? 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
What Should I Do If I Can't Connect to My ECS (MySQL) Instance? Error message: Access denied for user 'user_name'@'100.xxx.xx.xx' (using password: YES) Error cause: The username or password of the ECS-hosted database is incorrect. Solution: Check whether the username and password
What Should I Do If I Can't Connect to My ECS (Microsoft SQL Server) Instance? Error message: The TCP/IP connection to the host 100.xxx.xx.xx, port xxx has failed. Error cause: The port number of the self-built database is incorrect, or the network is disconnected. Solution: Ensure
How Do I View and Modify ECS Security Group Rules? To enable DAS to access the self-built DB instances on ECSs, you need to add an inbound rule with the port set to 3306 (example) and source to 100.125.0.0/16 and 100.79.0.0/16. On the ECS details page, click the Security Groups tab
