Can Multiple Users Log In to an RDS Instance Through DAS at the Same Time? Will the Accounts Be Locked If I Enter Wrong Passwords Several Times in a Row?

Multiple users can log in to an RDS Instance through DAS at the same time. Accounts will not be locked out after consecutive failed password attempts.

If you forget the password of your database account when using RDS, you can reset the password. On the Instances page of the RDS console, locate the target DB instance and choose More > Reset Password in the Operation column.