Arch
    
  
    
         Linux
    
  
  
  
  Install private-internet-access-vpn
Edit /etc/private-internet-access/login.conf and add username on one line and passwork on next
chmod 0600 /etc/private-internet-access/login.conf
chown root: root /etc/private-internet-access/login.conf
sudo pia -a
From https: //wiki.archlinux.org/index.php/Private_Internet_Access_VPN