1. Go to Ubuntu Software Center and type in the search:
2. Input user password.
3. Go to network connections, add enter "Add".
4. Select "Import a saved VPN configuration".
5. Choose unzipped configuration file that we want to use.
6. You should see the newly imported configuration.
7. Click on the Network Connections icon, go to the tab "VPN connections" and select our configuration.
8. If a successful connection to the Network Connections icon should appear castle.