MongoDB cheat sheet

MongoDB is an open-source NoSQL  document-oriented database program. I’ve recently started supporting MongoDB . This is my quick notes to  support MongoDB

How to install MongoDB Enterprise on Red Hat Linux

--create a repo file and insert the text below

vi /etc/yum.repos.d/mongodb-enterprise.repo

[mongodb-enterprise]

name=MongoDB Enterprise Repository

baseurl=https://repo.mongodb.com/yum/redhat/$releasever/mongodb-enterprise/3.4/$basearch/

gpgcheck=1

enabled=1

gpgkey=https://www.mongodb.org/static/pgp/server-3.4.asc

--install the package

sudo yum install -y mongodb-enterprise

Create the user Administrator 

Note:Once you've created the admin Users, you'll need to disconnect from the Mongo Shell & restart the Mongo Server

use admin
db.createUser(
  {
    user: "myUserAdmin",
    pwd: "abc123",
    roles: [ { role: "userAdminAnyDatabase", db: "admin" } ]
  }
)

Start the MongoDB service

sudo service mongod start

Start at the next system reboot

sudo chkconfig mongod on

To allow remote connections

Step1 : how to create a user in a db

db.createUser({

    user: 'robert',

    pwd: 'myM0ng0_pw',

    roles: [{ role: 'readWrite', db:'testdb'}]

})

Step 2 : Get the private address

/sbin/ifconfig | grep "inet addr" | awk -F: '{print $2}' | awk '{print $1}'

Step 3:edit mongo configuration file

--get private address from step 2 and add to bindip

vim /etc/mongod.conf

--change #security to:

security:

   authorization: enabled

Step 4: Then from the terminal you can run:

First you must have the mongo cli installed in your system (https://docs.mongodb.org/manual/installation/).

mongo someurl.mongodomain.com:45475/database_name -u username -p password

List all databases on a Mongo Server

show dbs

Show current Mongo db

db

db.getname()