Well I'm pretty sure if you have installed MongoDb from
.deb files you may have ran into this error:
Failed to unlink socket file /tmp/mongodb-27017.sock Operation not permitted
I really dont want to dive into the why's so here's the solution:
# Stop MongoDB service mongod stop # Delete the famous socket causing the problem! rm -fr /tmp/mongodb-27017.sock # Start MongoDB service mongod start # Connect to your localhost mongo 127.0.0.1:27017
If everything went well you should see MongoDB's console ready to be used.