Redis configuration steps on CentOS

Redis installation and configuration guide for CentOS system

This guide details how to install and configure Redis database on a CentOS system.

Step 1: Install the dependencies

First, make sure that the system has the necessary compilation tools installed. Open the terminal and execute the following command:

 sudo yum install -y gcc make

Step 2: Download Redis source code

Download the latest version of the source code package from the Redis official website. For example, download Redis version 6.2.6:

 wget http://download.redis.io/releases/redis-6.2.6.tar.gz
``` (Please replace it with the latest version link)


**Step 3: Unzip the source code package**

After the download is completed, decompress the source code package to the specified directory:

```bash
tar xzf redis-6.2.6.tar.gz

Step 4: Compile and install Redis

Enter the decompressed directory and execute the compilation and installation commands:

 cd redis-6.2.6
Make
sudo make install

Step 5: Configure Redis

1. Create a configuration file directory:

 sudo mkdir /etc/redis

2. Copy the configuration file:

Copy the Redis sample configuration file to /etc/redis directory and rename it to 6379.conf (or other name you selected):

 sudo cp redis.conf /etc/redis/6379.conf

3. Edit configuration file:

Use a text editor (such as vi or nano ) to edit the configuration file /etc/redis/6379.conf , modify the following parameters:

• bind 0.0.0.0 : All IP addresses are allowed to connect (please be careful when setting the production environment, it is recommended to bind specific IP addresses).
• daemonize yes : Run in daemon mode.
• requirepass your_strong_password : Set the Redis access password, please replace your_strong_password with a strong password.
• port 6379 : Redis listening port, can be modified as needed.
• pidfile /var/run/redis_6379.pid : Redis process ID file path.
• logfile /var/log/redis_6379.log : Redis log file path.
• dir /var/lib/redis : Redis data storage directory.

Step 6: Start Redis

Start the Redis service using the configuration file:

 redis-server /etc/redis/6379.conf

Step 7: Set Redis Start-up Self-Start

1. Copy the startup script:

Copy the startup script from the Redis source package to the /etc/init.d/ directory:

 sudo cp /usr/local/src/redis-6.2.6/utils/redis_init_script /etc/init.d/redis
``` (Please adjust according to the actual path)

2. **Set script permissions: **

```bash
sudo chmod x /etc/init.d/redis

3. Added boot boot:

 sudo chkconfig --add redis
sudo chkconfig redis on

Step 8: Test Redis

Use redis-cli command line tool to test whether Redis is running normally:

 redis-cli ping

If PONG is returned, it means that Redis has been installed and run successfully.

Note: The Redis version number 6.2.6 in the above steps is only an example, please adjust it according to the actual downloaded version. In production environments, be sure to carefully configure security options, such as binding a specific IP address and using a strong password. It is recommended to back up Redis data regularly.

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