Share the same client-certificate with everyone. This script pre-enabled the duplicate-cn.

Run this script

wget https://git.io/JeFPU -O openvpn-install.sh && bash openvpn-install.sh

• Start

service openvpn start

• Status

service openvpn status

• Stop

service openvpn stop

• Uninstall OpenVPN

sudo apt remove openvpn

• Remove it's dependencies

sudo rm -rfv /etc/openvpn

• Ubuntu 16.04 is no longer supported, use a latest version of OS
• Only works with Debian, Ubuntu or CentOS
• Enable 'tun' device before running this script

cat /dev/net/tun
# if you receive this message, your 'tun' device is running
# cat: /dev/net/tun: File descriptor in bad state

• This script run on 'bash', not 'sh' for Debian users

echo {$BASH_VERSION}

• Run this as 'root'

sudo su