Mongodb auth in ubuntu 14.04

mongod.sh

# Besure to comment auth=true In /etc/mongod.conf.

# Start the mongod or mongos instance without the authorization
$ sudo service mongod start

# Start mongo
$ mongo

# Inside mongo run the following
# Create admin user
> use admin
> db.createUser(
    {
      user: "adminuser",
      pwd: "1234567890",
      roles: [ "root" ]
    }
)

# Create database user
> use somedb
> db.createUser(
    {
      user: "somedb_user",
      pwd: "somedb_password",
      roles: ["readWrite"]
    }
)
> exit

# Stop and Start mongod with auth
# Comment auth=true In /etc/mongod.conf
$ sudo service mongod stop
$ sudo service mongod start