实现用户名/密码登录验证，有web管理端的openvpn服务搭建
一、部署
1、服务器选购
https://my.hosteons.com/aff.php?aff=1390
$5.00 USD/mo,1vCore,1GB RAM,15GB Disk Space,1IPv4,30TBANDWIDTH,1Gbps Port Speed
2、Openvpn安装
服务器证书生成忽略
yum安装openvpn
curl -o /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
yum clean all && yum makecache
yum install -y openvpn
mysql安装（5.7）
cd /etc/yum.repos.d/
yum localinstall mysql80-community-release-el7-3.noarch.rpm
yum repolist enabled | grep "mysql.-community."
修改repos文件中内容
--disable mysql56-community
--enable mysql57-community
--disable mysql80-community
yum install mysql-community-server
openvpn-admin安装
https://github.com/Chocobozzz/OpenVPN-Admin