Help Center> Relational Database Service> User Guide (ME-Abu Dhabi Region) > Working with RDS for MySQL> Database Account Security
Updated on 2023-07-06 GMT+08:00
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Database Account Security

Password Strength Requirements

RDS 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 MySQL DB instances. These system accounts cannot be used by users.

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 primary DB instances to standby DB instances or 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.
  • rdsProxy: indicates the database proxy account, which is used for authentication when the database is connected through the read/write splitting address.