1.环境以及依赖包的安装
[root@localhost ~]# systemctl stop firewalld && setenforce 0 #首先关闭防火墙和selinux
[root@localhost ~]# yum -y install gcc gcc-c++ #安装编译环境
[root@localhost ~]# yum install -y pcre pcre-devel #安装pcre软件包(使nginx支持http rewrite模块)
[root@localhost ~]# yum install -y openssl openssl-devel #安装op