stream和http模块是同级

[root@node2 html]#yum install epel-release.noarch -y
[root@node2 html]#yum install redis -y
[root@node2 html]#systemctl start redis

[root@node3 html]#yum install epel-release.noarch -y
[root@node3 html]#yum install redis -y
[root@node3 html]#systemctl start redis

-h 指定主机；redis数据（内存数据库）；

redis存在内存中，速度较快；mysql存在硬盘中，速度相对于redis较慢。

[root@localhost html]#vim /apps/nginx/conf/nginx.conf
[root@localhost html]#nginx -t
nginx: the configuration file /apps/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /apps/nginx/conf/nginx.conf test is successful
[root@localhost html]#nginx -s reload

[root@node2 html]#vim /etc/redis.conf
[root@node2 html]#systemctl restart redis

[root@node3 html]#vim /etc/redis.conf
[root@node3 html]#systemctl restart redis

[root@localhost html]#yum install epel-release.noarch -y
[root@localhost html]#yum install redis -y
[root@localhost html]#systemctl start redis