Am 01.09.2015 um 11:26 schrieb Miroslav Lichvar:
chronyd doesn't implement server rate limiting (yet). It's
not a high
priority. It may sound like a useful feature, but it often actually
increases the network traffic, because clients that send too many
requests are often the ones that will quickly send another request
when there is no reply from the server or it's told to reduce its
polling rate.
it's a matter of security in case of amplification attacks to third
parties since NTP is UDP like DNS and so *not* low priority