Redis download and installation

Redis download

The Redis installation package is divided into windows version and Linux version:

• Windows version download address: https://github.com/microsoftarchive/redis/releases

• Linux version download address: https://download.redis.io/releases/

Installing Redis in Linux

Steps to install Redis on Linux system:

1. Upload the Redis installation package to Linux

2. Unzip the installation package, command: ==tar -zxvf redis-4.0.0.tar.gz -C /usr/local==

3. Install the redis dependent environment gcc, command: ==yum install gcc-c++==

4. Enter /usr/local/redis-4.0.0, compile, command: ==make==

5. Enter the src directory of redis to install, command: ==make install==

Description of key files after installation:

/usr/local/redis-4.0.0/src/redis-server: Redis service startup script

/usr/local/redis-4.0.0/src/redis-cli: Redis client script

/usr/local/redis-4.0.0/redis.conf: Redis configuration file

  

You can see from the startup log that the default port number of Redis is ==6379==.

==Ctrl + C==Stop Redis service

You can connect to the local Redis service through ==redis-cli==. By default, the connection can be successful without authentication.

To exit the client, you can enter the ==exit== or ==quit== command.

Redis configuration file

We have started the Redis service earlier. By default, Redis runs in the foreground after it is started, and the client can connect to the Redis service without a password.If we want the Redis service to run in the background after it is started, and we hope that the client can only connect to the Redis service after passing the authentication, what should we do?

At this point, you need to modify the Redis configuration file:

• Redis configuration file in Linux system: REDIS_HOME/redis.conf

• Redis configuration file in Windows system: REDIS_HOME/redis.windows.conf

The following configuration can be done by modifying the Redis configuration file:

1)Set the Redis service to run in the background

Change the ==daemonize== configuration item in the configuration file to yes, and the default value is no.

Note: Redis for Windows does not support running in the background.

2)Set Redis service password

Uncomment the ==# requirepass foobared== configuration item in the configuration file, the default is the commented state.foobared is the password, which can be specified according to the situation.

3)The setting allows clients to connect to the Redis service remotely

By default, the Redis service can only connect the client locally, and does not allow the client to connect remotely.Comment out the ==bind 127.0.0.1== configuration item in the configuration file.

Explanation:

==#== in the Redis configuration file indicates a comment

The configuration items in the Redis configuration file cannot have spaces in front of them and need to be written in the top box

daemonize: It is used to specify whether redis should be started as a daemon thread. When set to yes, it means that the daemon mode is enabled.In this mode, redis will run in the background

requirepass: set the connection password of Redis

bind: If bind is specified, it means that only Redis requests from the specified network card are allowed.If not specified, it means that Redis requests from any network card can be accepted.

Note: After modifying the configuration file, you need to restart the Redis service configuration to take effect, and the specified configuration file that needs to be displayed when starting the Redis service:

1) Start the Redis service in Linux

# Enter the Redis installation directorycd /usr/local/redis-4.0.0# Start the Redis service and specify the configuration file to use./src/redis-server ./redis.conf