Introduction to MongoDB

MongoDB is a popular, open-source, NoSQL database management system that has gained significant traction in recent years. As a document-oriented database, MongoDB offers a flexible and scalable solution for storing and managing data, making it a preferred choice for modern web applications, IoT projects, and big data initiatives.

In this comprehensive guide, we will walk you through the process of installing MongoDB on an Ubuntu system in 2025 and explore the steps to check the version of the installed MongoDB instance.

Why choose MongoDB for your database needs?

MongoDB’s unique features and capabilities make it a compelling choice for a wide range of applications. Some of the key reasons to consider MongoDB include:

  1. Flexible Data Model: MongoDB’s document-oriented data model allows for the storage of complex, semi-structured data without the need for rigid schemas, making it highly adaptable to evolving application requirements.
  2. Scalability and High Availability: MongoDB’s distributed architecture and sharding capabilities enable seamless scaling to handle growing data volumes and user demands. It also provides built-in replication and automatic failover for high availability.
  3. Query Flexibility: MongoDB’s rich query language, including support for aggregation, geospatial queries, and text search, allows for powerful and efficient data manipulation.
  4. Performance Optimization: MongoDB’s use of indexes, caching, and other performance-enhancing features ensures fast data retrieval and processing, even for large datasets.
  5. Ecosystem and Community Support: MongoDB benefits from a thriving ecosystem of tools, libraries, and community support, making it easier to integrate with various applications and frameworks.

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Installing MongoDB on Ubuntu

Step-by-step guide to installing MongoDB on Ubuntu in 2025

  1. Update the Package Lists: Begin by updating the package lists on your Ubuntu system:
bash
sudo apt-get update
  1. Install the Required Dependencies: Install the necessary dependencies for MongoDB:
bash
sudo apt-get install -y gnupg
  1. Import the MongoDB GPG Key: Import the official MongoDB GPG key to ensure the integrity of the MongoDB packages:
bash
wget -qO - https://www.mongodb.org/static/pgp/server-6.0.asc | sudo apt-key add -
  1. Create the MongoDB Repository: Create a MongoDB repository file to enable the installation of the latest MongoDB packages:
bash
echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/6.0 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-6.0.list
  1. Install MongoDB: Install the MongoDB package:
bash
sudo apt-get install -y mongodb-org
  1. Start the MongoDB Service: Start the MongoDB service and enable it to start automatically on system boot:
bash
sudo systemctl start mongod
sudo systemctl enable mongod
  1. Verify the Installation: Verify that MongoDB has been installed correctly by checking the service status:
bash
sudo systemctl status mongod

You should see the MongoDB service running and active.

Checking the version of MongoDB installed on Ubuntu

How to check the MongoDB version using the command line

To check the version of MongoDB installed on your Ubuntu system using the command line, follow these steps:

  1. Open a terminal on your Ubuntu system.
  2. Run the following command to display the MongoDB version:
bash
mongod --version

This will output the version of the MongoDB server installed on your system.

How to check the MongoDB version using the MongoDB shell

Alternatively, you can check the MongoDB version using the MongoDB shell:

  1. Open the MongoDB shell by running the following command in your terminal:
bash
mongo
  1. Once inside the MongoDB shell, run the following command to display the MongoDB version:
bash
db.version()

This will output the version of the MongoDB server you have installed.

Troubleshooting common issues during installation and version checking

If you encounter any issues during the installation or version checking process, here are some steps you can take to troubleshoot:

  1. Check the MongoDB Service Status: Ensure that the MongoDB service is running correctly by checking its status using the following command:
bash
sudo systemctl status mongod

If the service is not running, try starting it using the following command:

bash
sudo systemctl start mongod
  1. Verify the MongoDB Repository Configuration: Double-check the MongoDB repository configuration file located at /etc/apt/sources.list.d/mongodb-org-6.0.list. Ensure that the repository URL and distribution name (in this case, focal) are correct.
  2. Clear the APT Cache: If you’re still experiencing issues, try clearing the APT cache and updating the package lists:
bash
sudo apt-get clean
sudo apt-get update
  1. Check for Firewall Rules: Ensure that your firewall is not blocking the MongoDB port (default is 27017). You can check the firewall status and rules using the following commands:
bash
sudo ufw status
sudo ufw allow 27017/tcp
  1. Review the MongoDB Log Files: If you’re still unable to resolve the issue, check the MongoDB log files located at /var/log/mongodb/ for any error messages or clues that may help you identify the problem.

Conclusion

In this article, we have provided a comprehensive guide on how to install MongoDB on an Ubuntu system in 2025 and how to check the version of the installed MongoDB instance. By following the step-by-step instructions, you should be able to successfully set up MongoDB on your Ubuntu system and verify its version using both the command line and the MongoDB shell.

If you’re ready to take your database management to the next level with MongoDB, be sure to check out our [MongoDB Certification Training](https://www.example.com/mongodb-certification-training) program. Our expert-led courses will help you master the latest MongoDB features and best practices, empowering you to build scalable and efficient data-driven applications.

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MySQL,

Last Update: December 24, 2024

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