How to Install Redis on Ubuntu/Debian/Redhat/Rocky Linux (Updated)

Redis, a high-performance, open-source, in-memory data store, has revolutionized the way developers manage data, offering unparalleled speed and flexibility. Whether you're building a real-time application, managing complex sessions, or optimizing your caching strategies, Redis provides an essential tool to elevate your development workflow.

This guide will walk you through the installation process of Redis on popular Linux distributions, equipping you with the knowledge to seamlessly integrate this powerful database into your projects.

Installing Redis on Ubuntu/Debian

Ubuntu and Debian users benefit from a streamlined installation process thanks to the readily available package repository. Here's how to get Redis up and running on these operating systems:

1. Adding the Repository:

   • Begin by adding the Redis repository to your APT index. This ensures that your system can locate and install the latest version of Redis.

   • Use the following commands:

     sudo apt-get install lsb-release curl gpg
     curl -fsSL https://packages.redis.io/gpg | sudo gpg --dearmor -o /usr/share/keyrings/redis-archive-keyring.gpg
     sudo chmod 644 /usr/share/keyrings/redis-archive-keyring.gpg
     echo "deb [signed-by=/usr/share/keyrings/redis-archive-keyring.gpg] https://packages.redis.io/deb $(lsb_release -cs) main" | sudo tee /etc/apt/sources.list.d/redis.list
         

     
     

2. Updating the Package Index:

   • After adding the repository, update your APT index to reflect the newly added package sources.

   • Run this command:

           sudo apt-get update
         

3. Installing Redis:

   • Finally, install Redis using the apt-get command:

           sudo apt-get install redis
         

Automation and Startup:

Redis will automatically start upon installation and will also restart upon system boot, ensuring continuous operation.

Installing Redis on Red Hat/Rocky Linux

Red Hat and Rocky Linux distributions use the yum package manager, providing a straightforward installation method:

1. Installing Redis:

   • Use the yum command to install Redis:

         sudo yum install redis
       

2. Enabling Automatic Startup:

   • To ensure Redis restarts automatically at boot time, enable the service:

         sudo systemctl enable redis
       

   
   

3. Starting Redis:

   • Start the Redis service:

         sudo systemctl start redis
       

   
   

With these steps, Redis is now installed and configured to run automatically on Red Hat/Rocky Linux.

Installing Redis on Ubuntu using Snap

Snap, a modern package manager, offers a convenient way to install Redis on Ubuntu. Here's the process:

1. Updating the Package Index:

   • Start by updating your APT index:

         sudo apt update
       

   
   

2. Installing Redis Tools:

   • Install the redis-tools package, which includes the redis-cli command for interacting with your Redis instance:

         sudo apt install redis-tools
       

   
   

3. Installing Redis with Snap:

   • Use the snap command to install Redis:

         sudo snap install redis
       

   
   

Managing Redis Startup:

Redis will start automatically using Snap, but it will not restart at boot time. To enable automatic restarting, run the following command:

      sudo snap set redis service.start=true
    

The Power of Redis

With Redis installed, you're ready to harness its capabilities:

• Caching: Redis excels as a high-speed cache for frequently accessed data, dramatically improving application performance and reducing database load.

• Session Management: Utilize Redis to efficiently manage user sessions, providing a smooth and responsive user experience across multiple devices.

• Real-time Applications: Redis shines in real-time applications like chat platforms, leaderboards, and live data visualizations, offering low latency and scalability.

Exploring the World of Redis

Once installed, you can delve into the diverse world of Redis. Experiment with:

• Data Structures: Explore data structures like strings, lists, sets, sorted sets, and hashes to organize your data effectively.

• Scripting: Utilize Lua scripting to automate complex operations and optimize your workflows.

• Persistence: Configure Redis to persist data on disk, ensuring data durability even in the event of server restarts.

Conclusion

This comprehensive guide has equipped you with the knowledge to confidently install Redis on various Linux distributions. With its inherent speed, flexibility, and ease of use, Redis stands as a valuable asset for modern developers, empowering them to create faster, more responsive, and efficient applications.