Instructions for Installing MongoDB 4 on Ubuntu 22.04

Introduction

MongoDB is a popular NoSQL database known for its flexibility and scalability. This guide provides detailed instructions on how to install MongoDB 4 on an Ubuntu 22.04 system.

Prerequisites

Before you begin, ensure you have the following:

• An Ubuntu 22.04 system with root or sudo access.
• Basic knowledge of terminal commands.

Step 1: Import the MongoDB GPG Key

First, import the MongoDB public GPG key used for package signing:

wget -qO - https://www.mongodb.org/static/pgp/server-4.4.asc | sudo apt-key add -

Step 2: Create a List File for MongoDB

Next, create the /etc/apt/sources.list.d/mongodb-org-4.4.list file to add the MongoDB repository:

echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/4.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-4.4.list

Step 3: Update the Package Database

Refresh your package database with the newly added MongoDB repository:

sudo apt update

Step 4: Install MongoDB Packages

Now, install the MongoDB packages:

sudo apt install -y mongodb-org

Step 5: Start and Enable MongoDB

After the installation, start the MongoDB service and enable it to start on boot:

sudo systemctl start mongod

sudo systemctl enable mongod

Step 6: Verify MongoDB Installation

Check the status of MongoDB to ensure it is running correctly:

sudo systemctl status mongod

You should see an output indicating that the MongoDB service is active and running.

Step 7: Secure MongoDB (Optional)

For added security, you may want to enable authentication and create an administrative user. Follow these steps:

1. Edit the MongoDB configuration file:

sudo nano /etc/mongod.conf

2. In the file, under #security, add the following lines:

security:

authorization: "enabled"

3. Restart MongoDB to apply the changes:

sudo systemctl restart mongod

4. Connect to the MongoDB instance:

mongo

5. In the MongoDB shell, switch to the admin database and create an administrative user:

use admin

db.createUser(

{

user: "admin",

pwd: "secure_password",

roles: [ { role: "userAdminAnyDatabase", db: "admin" } ]

}

)

Replace secure_password with a strong password.

Conclusion:

You have successfully installed MongoDB 4 on your Ubuntu 22.04 system. You can now start using MongoDB for your database needs. Remember to regularly update and secure your MongoDB instance to keep it running smoothly and securely.