//系统
CentOS Linux release 7.6.1810 (Core)
//关闭SELinux,可参考以下命令
# setenforce 0
# sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config
//firewall按需打开
# systemctl start firewalld
# firewall-cmd --zone=public --add-port=80/tcp --permanent //打开nginx 端口
# firewall-cmd --reload # 重新载入规则
//系统
CentOS Linux rele