So, I just created the Amazon RDS account.
And I started an instance of database.
The "endpoint" is:
abcw3n-prod.cbmbuiv8aakk.us-east-1.rds.amazonaws.com
Great! Now I try to connect to it from one of my other EC2 instances.
mysql -uUSER -pPASS -habcw3n-prod.cbmbuiv8aakk.us-east-1.rds.amazonaws.com
But nothing works and it just hangs.
I tried to ping it, and nothing works either. Nothing happens.
Do I need to change some settings?
Best Answer
By default RDS does not allow any connection that is not specified within the Security Group (SG). You can allow based on CIDR addressing or by Amazon account number which would allow any EC2 under that account to access it.