问题
I have created my Amazon RDS in Oregon region. I have to configure this with my Heroku App. I am able to access RDS from my local machine. But this not happens with Heroku. I also don't have liberty to create Security Groups there. I am getting error as
ERROR 2003 (HY000): Can't connect to MySQL server on 'RDS hostname' (111)
something . I won't understand that because by my local machine it was resolving host but not from Heroku.
回答1:
I Found solution myself, you just have to add inbound IP as 0.0.0.0/0 in security group for RDS to available it publicly.
来源：https://stackoverflow.com/questions/37408887/connect-amazon-rds-with-heroku