To follow the steps in this manual, the following requirements must be met. Please see the corresponding documentation if you need help with any of these:
Download the script, save the file as updown.sh in your /etc/openvpn/ directory and make it executable with chmod +x /etc/openvpn/updown.sh.
Change into the /etc/openvpn/ directory and issue the following command to establish the connection to the first hop as shown on the left. In this example it will connect to london.perfect-privacy.com:
sudo openvpn --config London.conf --script-security 2 --route remote_host --persist-tun --up updown.sh --down updown.sh --route-noexec