OpenConnect is an SSL VPN client initially created to support Cisco's AnyConnect SSL VPN. It has since been ported to support the Juniper SSL VPN (which is now known as Pulse Connect Secure), and the Palo Alto Networks GlobalProtect SSL VPN.
Enable snaps on elementary OS and install openconnect-vpn
Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
Enable snapd
Snap can be installed on elementary OS from the command line. Open Terminal from the Applications launcher and type the following:
sudo apt update
sudo apt install snapd
Either log out and back in again, or restart your system, to ensure snap’s paths are updated correctly.
Install openconnect-vpn
To install openconnect-vpn, simply use the following command: