Cent7OS仓库中不包含Redis，我们需要从官网下载并编译安装

官网下载地址：https://redis.io/download

安装步骤如下

选择下载stable版本到/tmp/redis目录下
解压至/tmp/redis目录下编译执行
安装到/usr/local/redis目录下
复制/tmp/redis/redis6.2.6/redis.conf文件至安装目录/usr/local/redis/bin/下
修改/usr/local/redis/redis.conf文件，让redis以守护进程（后台进程）运行
运行redis即可

目录结构

下载目录：/tmp/redis
解压后redis源文件：/tmp/redis/redis6.2.6
安装目录：/usr/local/redis

下面是安装过程

编译安装如下

sudo yum install gcc 
mkdir /tmp/redis
cd /tmp/redis
wget https://download.redis.io/releases/redis-6.2.6.tar.gz
tar -zxvf redis-6.2.6.tar.gz
cd /tmp/redis/redis-6.2.6
make MALLOC=libc 
make install PREFIX=/usr/local/redis

复制conf文件

cp /tmp/redis-6.2.6/redis.conf /usr/local/redis/bin/

编辑conf文件并修改 daemonize和requirepass两个参数（后台运行和连接密码）

vim /usr/local/redis/bin/redis.conf
# Redis configuration file example.
#
# Note that in order to read the configuration file, Redis must be
# started with the file path as first argument:
...
daemonize yes
...
requirepass your_passwd

直接运行即可

/usr/local/redis/bin/redis-server /usr/local/redis/bin/redis.conf

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Cent7OS安装Redis

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