网络上很多安装redis教程参差不齐，于是自己便总结一份以留作以后查阅之用。

安装redis

下载redis
wget http://download.redis.io/releases/redis-3.0.0.tar.gz
编译源程序
tar zxvf redis-3.0.0.tar.gz
cd redis-3.0.0
make
cd src
make install
创建redis目录，移动文件，便于以后管理
mkdir -p /usr/local/redis/bin
mkdir -p /usr/local/redis/etc
mv redis.conf /usr/local/redis/etc
mv mkreleasehdr.sh redis-benchmark redis-check-aof redis-check-dump redis-cli redis-server /usr/local/redis/bin
默认情况下，redis不是在后台运行的，我们需要把开启的redis后台运行 vi /usr/local/redis/etc/redis.conf 将daemonize的值改为yes。另外，为了安全起见，可以将redis设置为仅本机访问。将"#bind 127.0.0.1"前的"#"号去掉即可
编写脚本，vi /etc/init.d/redis 输入一下内容并保存
`

    # chkconfig: 2345 10 90
    # description: Start and Stop redis
    PATH=/usr/local/bin:/sbin:/usr/bin:/bin
    REDISPORT=6379 #实际环境而定
    EXEC=/usr/local/redis/bin/redis-server #实际环境而定
    REDIS_CLI=/usr/local/redis/bin/redis-cli #实际环境而定
    PIDFILE=/var/run/redis.pid
    CONF="/usr/local/redis/etc/redis.conf" #实际环境而定
    case "$1" in
            start)
                    if [ -f $PIDFILE ]
                    then
                            echo "$PIDFILE exists, process is already running or crashed."
                    else
                            echo "Starting Redis server..."
                            $EXEC $CONF
                    fi
                    if [ "$?"="0" ]
                    then
                            echo "Redis is running..."
                    fi
                    ;;
            stop)
                    if [ ! -f $PIDFILE ]
                    then
                            echo "$PIDFILE exists, process is not running."
                    else
                            PID=$(cat $PIDFILE)
                            echo "Stopping..."
                            $REDIS_CLI -p $REDISPORT SHUTDOWN
                            while [ -x $PIDFILE ]
                            do
                                    echo "Waiting for Redis to shutdown..."
                                    sleep 1
                            done
                            echo "Redis stopped"
                    fi
                    ;;
            restart|force-reload)
                    ${0} stop
                    ${0} start
                    ;;
            *)
                    echo "Usage: /etc/init.d/redis {start|stop|restart|force-reload}" >&2
                    exit 1
    esac

`
保存后赋予执行权限： chmod +x /etc/init.d/redis
启动
# 尝试启动或停止redis
service redis start
service redis stop
# 开启服务自启动
chkconfig redis on

PHPredis扩展安装

下载扩展包 wget https://github.com/phpredis/phpredis/archive/4.2.0.tar.gz 解压安装redis扩展

tar -zxvf 4.2.0.tar.gz
cd phpredis-4.2.0
phpize
./configure --with-php-config=/usr/bin/php-config
make
make install

配置PHP的配置文件,添加redis扩展 vi /etc/php.ini 末尾添加 extension="redis.so" 重启httpd服务让扩展生效 service httpd restart