Step-by-Step Guide

1. Update the Package Index
   Open a terminal and update the package index to ensure you have the latest information about available packages:

   sudo apt update

2. Import the MongoDB Public Key
   Import the public key used by the package management system:

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

3. Create the MongoDB Source List File
   Create a list file for MongoDB. Use your preferred text editor to create the file:

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

4. Reload the Local Package Database
   Reload the package database to include the MongoDB repository:

   sudo apt update

5. Install MongoDB Packages
   Install MongoDB using the apt package manager:

   sudo apt install -y mongodb-org

6. Start and Enable MongoDB
   Start the MongoDB service:

   sudo systemctl start mongod

Enable MongoDB to start on boot:

   sudo systemctl enable mongod

7. Verify MongoDB Installation
   Check the MongoDB service status to ensure it is running:

   sudo systemctl status mongod

If MongoDB is running, you should see an active (running) status.

8. Test MongoDB Installation
   To test the MongoDB installation, use the MongoDB shell (mongo) to connect to the MongoDB server:

   mongo

Once connected, you can run basic MongoDB commands to ensure everything is working correctly. For example, create a new database and collection:

   use mydatabase
   db.mycollection.insertOne({ name: "MongoDB", type: "Database" })
   db.mycollection.find()

You should see the inserted document in the output.

9. Secure MongoDB (Optional)
   For production environments, it’s important to secure your MongoDB installation. Create an administrative user:

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

Enable authentication by editing the MongoDB configuration file:

   sudo nano /etc/mongod.conf

Add or modify the following lines:

   security:
     authorization: enabled

Restart MongoDB to apply the changes:

   sudo systemctl restart mongod

10. Backup and Restore Databases (Optional)
    To back up a MongoDB database, use the mongodump command:
    bash mongodump --db mydatabase --out /path/to/backup
    To restore a database from a backup, use the mongorestore command:
    bash mongorestore --db mydatabase /path/to/backup/mydatabase