How to install wireguard on Debian 9? HD

In case header file is not installed, Wireguard will not be able to work. You need to install header files as well. Following the steps below to install Linux header file. #show debian version lsb_release -a #show kernel version uname -r #check header dpkg-query -s linux-headers-$(uname -r) #install header apt-get install linux-headers-$(uname -r) #install wireguard Following the steps at https://www.wireguard.com/install/ WireGuard® is an extremely simple yet fast and modern VPN that utilizes state-of-the-art cryptography. https://www.wireguard.com/ Wireguard is not designed to fight against censorship / DPI, so better not use it as a tool to bypass GFW. Installation: https://www.wireguard.com/install/ https://wiki.debian.org/Wireguard https://en.wikipedia.org/wiki/WireGuard