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Common Operations Slow Query Logs Instance List Changing the OS Reinstalling the OS Creating an Image Purchasing an EVS Disk Database Management MySQL Database Management Microsoft SQL Server Database Management Security Group Configuration Examples Configuring Security Group Rules
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
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 (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 (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
