1. Set up your user

• access to mongo

mongo

• create database

user database_name

• create user

db.createUser({
    user: 'your_user_name',
    pwd: 'secretPassword',
    roles: [{ role: 'readWrite', db:'database_name'}]
})

2. Edit Config /etc/mongod.conf

sudo nano /etc/mongod.conf

• then edit net:

# network interfaces
net:
  port: 27017 <- you can change port
  bindIp: 0.0.0.0  <- change from 127.0.0.1 to 0.0.0.0 for remote access

• then find security

security:
  authorization: 'enabled'

• Save

Restart mongo service

sudo service mongod restart

• you can watch log to confirm mongo service restart successfully

sudo tail -f /var/log/mongodb/mongod.log

Test Connection from your Pc to Remote server

• terminal

mongo -u your_user_name -p secretPassword 123.45.67.89/database_name

replace your_user_name and secretPassword and database_name youself