[SOLVED] NTP problems in Slackware 13.1

mlpa · 03-30-2011, 04:42 AM

Ok I have reboot some times now and the clock is synchronize.
Thanks for you help, but can some one explain me more about the multicastclient?

allend · 03-30-2011, 06:37 AM

From file:///usr/doc/ntp-4.2.6p3/html/confopt.html#multicastclient

Quote:

multicastclient address [...]
Enable reception of multicast server messages to the multicast group address(es) (type m) specified. Upon receiving a message for the first time, the multicast client measures the nominal server propagation delay using a brief client/server exchange with the server, then enters the broadcast client mode, in which it synchronizes to succeeding multicast messages. Note that, in order to avoid accidental or malicious disruption in this mode, both the server and client should operate using symmetric key or public key authentication as described in the Authentication Options page.

mlpa · 03-30-2011, 07:39 AM

Thanks allend, and that is the reason to not working correctly?

allend · 03-30-2011, 08:15 AM

I am unclear on the details, but I believe the essence to be that the public servers do not operate using symmetric key or public key authentication. If you enable multicast, then your client expects such authentication and sits waiting patiently for a connection it cannot receive. So, nothing happens.