How to connect to MongoDB EC2 instance

Question

we have an EC2 MongoDB 2.4 instance from Amazon MarketPlace. when i try to access it from my computer using the mongo command like so:

mongo xx-xx-xx-xx-xx.compute-1.amazonaws.com

i get the following error

Error: couldn't connect to server xx-xx-xx-xx-xx.compute-1.amazonaws.com:27017 at src/mongo/shell/mongo.js:147
exception: connect failed

• i can connect to the remote instance using ssh so it is reachable.
• the port is the default port 27017.
• mongod is running and working on the remote instance.

any suggestions on how to fix this?

Answer 1

As frisky said, you have to open the port 27017 at the EC2 Security Group Console. (To know more about how to do that: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/authorizing-access-to-an-instance.html)

But you also need to change the bind_ip variable at the /etc/mongodb.conf file. You need to comment the line or assign the ip that will be able to connect the DB to it.