def METHOD_NAME(self, update=True):
    """ Execute authconfig command """
    if update:
        self.add_option("update")
    args = self.build_args()
    auth_cmd = ['/usr/sbin/authconfig'] + args
    cmd = self.host.run_command(auth_cmd, set_env=False, raiseonerr=False)
    if cmd.returncode != 0:
        raise Exception("Failed to run Authconfig")