Logon to the server.

def login(self):
        """Logon to the server."""

        if self.args.snmp_force:
            # Force SNMP instead of Glances server
            self.client_mode = 'snmp'
        else:
            # First of all, trying to connect to a Glances server
            if not self._login_glances():
                return False

        # Try SNMP mode
        if self.client_mode == 'snmp':
            if not self._login_snmp():
                return False

        # Load limits from the configuration file
        # Each client can choose its owns limits
        logger.debug("Load limits from the client configuration file")
        self.stats.load_limits(self.config)

        # Init screen
        if self.quiet:
            # In quiet mode, nothing is displayed
            logger.info("Quiet mode is ON: Nothing will be displayed")
        else:
            self.screen = GlancesCursesClient(config=self.config, args=self.args)

        # Return True: OK
        return True