gistfile1.txt

$HTTP["host"] =~ "notebook.mydomain.invalid" { 
    accesslog.filename = "/var/log/lighttpd/notebook.log"

    proxy.server  = ( "" => 
                        ( (
                            "host" => "127.0.0.1",
                            "port" => "9000"
                        ) )
                    )

    websocket.server = ( "/kernels" =>
                            (
                             "host" => "127.0.0.1",
                             "port" => "9000"
                            )
                   )
}