How to install OpenVPN
This script will let you setup your own VPN server in no more than a minute, even if you haven’t used OpenVPN before. It has been designed to be as unobtrusive and universal as possible.
Run the script and follow the assistant:
chmod +x openvpn-installer.sh
Then run it :
Once it ends, you can run it again to add more users, remove some of them or even completely uninstall OpenVPN.
If you want use it with Windows here https://openvpn.net/index.php/open-source/downloads.html
Script in github https://github.com/waelisa/OpenVPN-Installer