I've been launching openfortivpn for some time, since I work online and have to use VPN during my work day.
Openfortivpn works ok, but running it manually (as root) seems to be bit lame for modern Linux distro, as Solus.
After some digging in, it appears that this kind of VPN can be integrated with Gnome (perhaps Budgie too, but haven't tested).
So, here's some quick tutorial, if you want fancy 'key' icon in your Gnome top bar
and quick on/off from panel:
Setup is pretty easy, no 3-rd party installation, packages, compilation etc.
1. Install Fortinet SSLVPN client from Software Center
2. Restart you computer (I think it's necessary before going to 3.)
3. In Gnome Settings -> Network you'll find new type of VPN (after clicking 'add VPN'):
4. Choose first type and configure you connection settings, you might use port in gateway address, store password etc:
5. In 'advanced' options you should paste your certificate:
6. It is worth checking 'Use this connection only for resources on its network' if you want to use regular pages during VPN connection:
It works for me, should work for you. It's much quicker and nicer to use VPN this way.