digitalocean create mongodb database and create user and password

Digital ocean creates MongoDB database and creates user and password 

mongo press enter from root

show dbs

this comment will show the all db

now command for the create database 

use examdb

create security system in mongodb

Secure MongoDB

First, start up your Mongo client. On Linux it is the command mongo. Enter this block of text in, of course changing the placeholder parts to your own information.

db.createUser({

  user: "USERNAME", 

  pwd: "PASSWORD", 

  roles: [

    {

      role: "readWrite",

      db: "YOUR_DATABASE"

    }

  ]

});

After you’re done, quit the mongo client and edit your MongoDB configuration file. Depending on your OS and distro, you will find it in one of these places.

/etc/mongodb.conf

/etc/mongod.conf

Change the following line, #security: to the following.

security:

  authorization: enabled

You should consider changing the bind port to localhost (127.0.0.1) or bind it to a private IP that does not get exposed to the internet. Exposing your database to the internet is just a bad idea in general. This is what you should change.

# network interfaces

net:

  port: 27017

  bindIp: 634.234.102.6

Mind your spaces! Always in twos, never tabs. Afterwards restart your MongoDB database. On Linux it will be one of the following commands based on your distro of choice.

systemctl restart mongod

systemctl restart mongodb