# openconnect > A VPN client, for Cisco AnyConnect VPNs and others. > More information: <https://www.infradead.org/openconnect/manual.html>. - Connect to a server: `openconnect {{vpn.example.org}}` - Connect to a server, forking into the background: `openconnect --background {{vpn.example.org}}` - Terminate the connection that is running in the background: `killall -SIGINT openconnect` - Connect to a server, reading options from a config file: `openconnect --config={{path/to/file}} {{vpn.example.org}}` - Connect to a server and authenticate with a specific SSL client certificate: `openconnect --certificate={{path/to/file}} {{vpn.example.org}}`