MongoDB is an open-source, document-oriented database management system that is widely used for storing and managing data. It is a popular choice for many applications because of its flexibility and scalability. In this article, we will show you how to install MongoDB on Debian 11 (Bullseye), the latest stable release of Debian.

Prerequisites

Before you begin, you need to have a server running Debian 11. You can use a physical server or a virtual private server (VPS) from a cloud provider. You will also need to have a user account with sudo privileges.

Installing MongoDB on Debian 11

Add the MongoDB package repository to your system by running the following command:

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

Update the package list and install the MongoDB package by running the following commands:

sudo apt-get update
sudo apt-get install -y mongodb-org

After the installation is complete, start the MongoDB service and enable it to start automatically on boot by running the following commands:

sudo systemctl start mongod
sudo systemctl enable mongod

To verify that the MongoDB service is running, run the following command:

sudo systemctl status mongod

You should see output similar to the following:

mongod.service - MongoDB Database Server
   Loaded: loaded (/lib/systemd/system/mongod.service; enabled; vendor preset: enabled)
   Active: active (running) since Fri 2021-12-07 19:18:14 UTC; 1min 29s ago
     Docs: <https://docs.mongodb.org/manual>
 Main PID: 19922 (mongod)
    Tasks: 23 (limit: 4665)
   CGroup: /system.slice/mongod.service
           └─19922 /usr/bin/mongod --config /etc/mongod.conf

Dec 07 19:18:14 ubuntu systemd[1]: Started MongoDB Database Server.

By default, MongoDB listens on the local interface only, which means that you cannot connect to it from a remote host. To allow connections from other hosts, you need to edit the /etc/mongod.conf file and uncomment the bindIp line:

sudo nano /etc/mongod.conf

Then, change the line bindIp: 127.0.0.1 to bindIp: 0.0.0.0. Save the file and exit the editor.

After making the changes, restart the MongoDB service to apply them:

sudo systemctl restart mongod

Connecting to MongoDB

To connect to the MongoDB server, you can use the mongo shell, which is included in the mongodb-org package. To start the mongo shell, run the following command:

mongo

This will connect you to the MongoDB server and open the mongo shell, where you can run various commands to manage and manipulate the data in your database. For example, you can create a new database by running the following command:

use mydb

This will create a new database named mydb and switch to it. You can then create a new collection in the database by running the following command:

db.createCollection("users")

This will create a new collection named users in the mydb database. You can insert documents into the collection by running the following command:

db.users.insert({ name: "John Doe", age: 30 })

This will insert a new document into the users collection. You can retrieve the documents from the collection by running the following command:

db.users.find()

This will return all the documents from the users collection.

Conclusion

In this article, we have shown you how to install MongoDB on Debian 11. We have also demonstrated how to connect to the MongoDB server and perform some basic operations using the mongo shell. Now that you have MongoDB installed and running on your server, you can start using it for your own applications and projects.