To install the Redis server, you need to 1. Confirm that the system environment meets the requirements; 2. Install dependent packages; 3. Download and compile the source code; 4. Modify the configuration file to start the service. First, make sure that the Linux system has installed GCC, make, wget and other tools, and execute the corresponding commands to install dependencies according to the system type. Then download the Redis source code package from the official website, unzip it and enter the directory to execute make compilation. It is recommended to run make test to verify the compilation result. Then modify the daemonize parameter in the redis.conf file to yes to enable background running mode. Finally, start the service through src/redis-server redis.conf, and use src/redis-cli to connect to the test. If the ping command returns PONG, it means the installation is successful. If you need to start automatically at boot, you can configure the systemd service and copy the configuration file to the specified path.

Installing and starting the Redis server on Linux is actually quite straightforward. As long as you follow the steps, there will generally be no problems. The key is to ensure that the environment is fully prepared and configured appropriately.

Prerequisites for installing Redis

Before starting, make sure your system meets the basic requirements for installing Redis:

• Installed Linux system (such as Ubuntu, CentOS)
• Have root or sudo permissions
• The GCC compilation tool has been installed (Redis is written in C)
• Installed common command line tools such as make and wget

If you are using an Ubuntu or Debian system, you can run the following command to install dependencies:

 sudo apt update && sudo apt install build-essential tcl

If it is a CentOS/RHEL system, you can use:

 sudo yum groupinstall "Development Tools"

Download and compile Redis

Redis officially recommends downloading the source code package from the official website, compiling and installing it yourself, which is more flexible and controllable.

1. Go to the official website redis.io to download the latest stable version (or use wget directly):

    wget https://download.redis.io/redis-stable.tar.gz

2. Unzip and enter the directory:

    tar -xzvf redis-stable.tar.gz
   cd redis-stable

3. Compile Redis:

    make

   If you don't want to fully compile, you can also just execute make redis-server and make redis-cli , which is faster.

4. After the compilation is completed, test whether it is normal:

    make test

   If the test passes, you can proceed to the next step.

Start the Redis service

By default, Redis runs in foreground mode. But in a production environment we usually want it to run as a background process.

1. Modify the daemonize parameter in the configuration file: Open the redis.conf file and find this line:

    daemonize no

   Change to:

    daemonize yes

2. Start Redis:

    src/redis-server redis.conf

3. Check whether the operation is successful:

    ps aux | grep redis

If you want Redis to start automatically at boot, you can copy the redis.conf file to the /etc/redis directory and create a systemd service unit file. This part is a little more complicated, but there are many ready-made templates online for reference.

Use redis-cli connection test

Redis comes with a client tool redis-cli , which you can use to connect to local services for testing.

1. Start the client:

    src/redis-cli

2. Try entering the command:

    127.0.0.1:6379> ping

   If PONG is returned, Redis is working normally.

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   That's basically it. The whole process may seem like a lot of work, but you can actually get it done quickly by following the step-by-step process. What is not complicated but easily overlooked is the permission settings and background operation configuration. In particular, remember to adjust security options such as binding address and password protection before going online.

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