https://www.vpsbg.eu/docs/how-to-setup-a-softether-vpn-server-on-centos-7
https://www.cjavapy.com/article/2638/
//临时关闭 systemctl stop firewalld//禁止开机启动 systemctl disable firewalld
记得关闭防火墙
https://openvpn.net/client/client-connect-vpn-for-windows/
客户端下载
