mongo
MongoDB shell version: 3.0.7
connecting to: test
2016-01-23T21:14:51.955+0530 W NETWORK Failed to connect to 127.0.0.1:27017, reason: errno:61 Connection refused
2016-01-23T21:14:51.957+0530 E QUERY Error: couldn't connect to server 127.0.0.1:27017 (127.0.0.1), connection attempt failed
at connect (src/mongo/shell/mongo.js:179:14)
at (connect):1:6 at src/mongo/shell/mongo.js:179
exception: connect failed
[initandlisten]
***aborting after invariant() failure
Solution:
Run mongodb with sufficient permissions.
$ sudo mongod
