'Return config validator'

def _validator(self, advanced):

    advanced.accept(u'text', key=u'host')
    advanced.accept(u'integer', key=u'port')
    advanced.accept(u'file', key=u'netrc')
    advanced.accept(u'text', key=u'username')
    advanced.accept(u'text', key=u'password')
    advanced.accept(u'boolean', key=u'enabled')
    return advanced
