Install Redis on Linux

This article aims to provide you with a full guide on how to install Redis on Linux, an open-source, in-memory data structure store that can be used as a database, cache, and message broker. We will walk you through the step-by-step process of installation and setup, as well as provide you with tips on how to optimize Redis for your specific use case. By the end of this guide, you will have a solid understanding of how to install Redis on Linux and be able to start using it for your own projects.

Install Redis on Ubuntu/Debian

The first thing you need to do is to update your system. This ensures that you have the latest packages and security updates. You can do this by running the following command:

sudo apt-get update

Step 2: Install Redis

Next, you need to install Redis. You can do this by running the following command:

sudo apt-get install redis-server

This will install Redis on Linux machine.

Step 3: Configure Redis

By default, Redis is configured to listen only on the loopback interface (localhost), which means that it can only be accessed from the same machine. If you want to access Redis from other machines, you need to change the configuration.

To do this, open the Redis configuration file in your favorite text editor:

sudo nano /etc/redis/redis.conf

Find the line that starts with bind and change it to:

This will tell Redis to listen on all network interfaces.

Step 4: Start Redis

After you’ve configured Redis, you need to start the Redis server:

sudo systemctl start redis

You can check the status of the Redis service with the following command:

sudo systemctl status redis

If everything is working correctly, you should see the message “Active: active (running)” in the output.

Step 5: Test Redis

To test that Redis is working correctly, you can use the Redis command-line interface (CLI). Open a new terminal window and type the following command:

redis-cli

This will open the Redis CLI prompt. You can test Redis by typing the following command:

redis-cli

127.0.0.1:6379> ping
PONG
127.0.0.1:6379>

Install Redis on CentOS

Step 1: Update your system

Before installing Redis, you need to update your CentOS system to make sure that you have the latest packages and security updates. You can do this by running the following command:

sudo yum update

Step 2: Add EPEL repository

Redis is not available in the default CentOS repositories, so you need to add the EPEL (Extra Packages for Enterprise Linux) repository. You can do this by running the following command:

sudo yum install epel-release

Step 3: Install Redis

Now that you have added the EPEL repository, you can install Redis by running the following command:

sudo yum install redis

Step 4: Configure Redis

By default, Redis is configured to listen only on the loopback interface (localhost), which means that it can only be accessed from the same machine. If you want to access Redis from other machines, you need to change the configuration.

To do this, open the Redis configuration file in your favorite text editor:

sudo nano /etc/redis.conf

Find the line that starts with bind and change it to:

bind 0.0.0.0

This will tell Redis to listen on all network interfaces.

Step 5: Start Redis

After you’ve configured Redis on Linux, you need to start the Redis server:

sudo systemctl start redis
sudo systemctl status redis
sudo systemctl enable redis

Step 6: Test Redis

To test that Redis is working correctly, you can use the Redis command-line interface (CLI). Open a new terminal window and type the following command:

redis-cli

127.0.0.1:6379> ping
PONG
127.0.0.1:6379>

Now that you have Redis on Linux, you can start using it. Redis on Linux is very flexible and can be used for many different purposes, including caching, real-time analytics, and message queuing.

To learn more about how to use Redis on Linux, check out the Redis documentation and tutorials.