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Database Security

Password Strength Requirements

For database password strength requirements on the management console, see the database configuration table in Buying a DB Instance.

GaussDB(for MySQL) has a password security policy for newly created database users. Passwords must:
  • Consist of at least eight characters.
  • Contain at least one uppercase letter, one lowercase letter, one digit, and one special character.

When you create DB instances, your password strength is checked. You can modify the password strength as user root. For security reasons, you are advised to use a password that is at least as strong as the default one.

Account Description

To provide O&M services, the system automatically creates system accounts when you create DB instances. These system accounts are unavailable to you.

Deleting, renaming, and changing passwords or permissions for these accounts will cause the DB instance to run abnormally. Exercise caution when performing these operations.

  • rdsAdmin: indicates the management account, which has the highest superuser permission and is used to query and modify DB instance information, rectify faults, migrate data, and restore data.
  • rdsRepl: indicates the replication account, which is used to synchronize data from the primary node to read replicas.
  • rdsBackup: indicates the backup account, which is used for background backup.
  • rdsMetric: indicates the metric monitoring account, which is used by watchdog to collect database status data.