A VPN client, for Cisco AnyConnect VPNs and others. More information: https://www.infradead.org/openconnect/manual.html.
openconnect vpn.example.org
openconnect --background vpn.example.org
killall -SIGINT openconnect
openconnect --config=path/to/file vpn.example.org
openconnect --certificate=path/to/file vpn.example.org