yum install -y redis

systemctl start redis

systemctl status redis

systemctl stop redis

systemctl restart redis

ps -ef | grep redis

firewall-cmd --zone=public --add-port=6379/tcp --permanent

systemctl restart firewalld

netstat -lpn | grep 6379

/etc/redis.conf
bin 127.0.0.1 注释掉，否则只有本地才能访问
#bin 127.0.0.1
保护模式protected-mode yes 
改为protected-mode no
要想修改端口号修改port即可
修改密码
requirepass 123456

redis-cli -h 127.0.0.1 -p 6379
然后输入info，提示必须验证
输入用户名和密码
auth 12345