This topic provides answers to some commonly asked questions about Database Autonomy Service (DAS).
Q: How do I authorize DAS to access an instance and access the instance from DAS?
Q: What are the minimum permissions required for different database engines?
A: See Permissions.Q: Can I use the root account to access a self-managed MySQL database from DAS?
Q: Can I access self-managed Redis databases without providing the account password?
A: Yes, you can access self-managed Redis databases without providing the account password. When a DBGateway detects a database instance, it attempts to establish a connection to the database. If the account used to log on to the Redis database has no password, the status of the instance changes to Accessed.
Q: Why am I prompted that the authentication failed when I authorize a RAM user to access a database instance?
- The account does not exist. When you grant permissions to a RAM user in the DAS console, use the account used to log on to the database instead of the Alibaba Cloud account.
- The password is wrong. Use the correct password of the account used to log on to the database.
- The authentication is blocked by the control settings. To authorize an existing database account to access a database, you must check the access control settings of the database. For example, check whether the IP address is added to the whitelist of the database.