Trying to connect to Mongo Instance from other VPS/ Cloud Server

Question

For implementing Replication, I need to make sure that my 2 Mongo Instances are able to communicate with each other. For ex my IP is as follow

Instance 1 - 1.2.3.4
Instance 2 - 1.2.5.6

When i log into my first machine & run the following command

mongo --host 1.2.5.6 --port 27017

I get the following error

MongoDB shell version: 2.6.0
connecting to: 10.128.194.89:27017/test
2014-04-29T03:48:42.198-0400 warning: Failed to connect to 10.128.194.89:27017, reason: errno:111 Connection refused
2014-04-29T03:48:42.199-0400 Error: couldn't connect to server 10.128.194.89:27017 (10.128.194.89), connection attempt failed at src/mongo/shell/mongo.js:148
exception: connect failed

I guessed I need to change my firewall settings for this server. So after enabling UFW, the output is this

To                         Action      From
--                         ------      ----
22                         ALLOW       Anywhere
80/tcp                     ALLOW       Anywhere
Anywhere                   ALLOW       107.170.47.82
22                         ALLOW       Anywhere (v6)
80/tcp                     ALLOW       Anywhere (v6)

Also in both the mongod.conf files i have commented out bind_ip parameter to enable remote connections. I am not sure what I am missing out.

Answer 1

It was silly mistake by me. I did make proper changes to Firewall settings but I didn't reboot my machine.

After that, it was working fine :)