Common Mistakes I See Students Make
These are the RDS mistakes I see after the lab: opening port 3306 to the world, using an IP instead of the endpoint, and forgetting to delete the instance. Read them once.
मित्रांनो, RDS च्या या चुका मी lab नंतर बघतो: 3306 दुनियाला उघडा, endpoint ऐवजी IP, आणि instance delete करायला विसरणे. एकदा वाचून ठेवा.
दोस्तों, RDS की ये गलतियाँ मैं lab के बाद देखता हूँ: 3306 दुनिया के लिए खुला, endpoint की जगह IP, और instance delete करना भूल जाना. एक बार पढ़कर रखो.
- Opening port 3306 to
0.0.0.0/0and turning on public access, because "localhost worked in Chapter 10". - Putting the EC2 private IP in the application instead of the RDS endpoint. After a reboot or a failover that IP is wrong. The endpoint stays right.
- Connecting as
root, or aswpuser@localhost. Those accounts are not on RDS. Useadmin, or a user you created there. - Setting the security-group source to My IP after public access is No. The rule must point at the EC2 security group.
- Restoring a snapshot and waiting for the old endpoint to change. Restore builds a new instance. Update the application.
- Assuming a snapshot saved a parameter-group edit. It saved the data. Attach the parameter group again on restore.
- Leaving the instance running, or stopping it and forgetting the 7-day automatic start.
- Deleting the instance but leaving manual snapshots behind.