AWS RDS：如何连接到实例

Question

I just set up an Amazon RDS instance. I have a separate application server and I am trying to figure out how to connect to the RDS instance from my EC2 application server. On the Instance page, I have

enbdpoint: mycompany.czdv3mj7ps25.us-west-2.rds.amazonaws.com:5432

I tried to login into to psql using that address but I got

$ psql -h mycompany.czdv3mj7ps25.us-west-2.rds.amazonaws.com:5432 -U myuser -d mydb
psql: could not translate host name "mycompany.czdv3mj7ps25.us-west-2.rds.amazonaws.com:5432" to address: Name or service not known

How do I connect to the instances database? I don't see any other ip addresses in the RDS console.

Answer 1

You have wrong syntax. The correct syntax is:

$ psql --host mycompany.czdv3mj7ps25.us-west-2.rds.amazonaws.com --port 5432 --username myuser --dbname mydb

You have specified port information wrong in you command. the port has to be specified using --port option and not hostname:port

Answer 2

This syntax worked for me in the psql command line:

\\connect dbname username hostname port#

If the information is correct it will take a couple seconds to process then it will ask for your password

Also make sure the security group for your instance, the outbound/inbound is setup to allow access from your IP