[ntp:questions] Re: uk pool problem

Ronan Flood ronan at noc.ulcc.ac.uk
Thu Aug 31 11:24:31 UTC 2006


mayer at ntp.isc.org (Danny Mayer) wrote:

> Additionally there is evidence that the server sometimes gives a totally
> incorrect answer but it's not clear to anyone why.

It appears to be to discourage people from using ntpdate!

> I'd have to check the ntpdate code but I don't think it does anything
> special to verify the receive data.

Yes, or you could try the documentation:

  http://www.eecis.udel.edu/~mills/ntp/html/ntpdate.html

 "ntpdate sets the local date and time by polling the Network Time Protocol
  (NTP) server(s) given as the server arguments to determine the correct
  time. It must be run as root on the local host. A number of samples are
  obtained from each of the servers specified and a subset of the NTP clock
  filter and selection algorithms are applied to select the best of these.
  Note that the accuracy and reliability of ntpdate depends on the number
  of servers, the number of polls each time it is run and the interval
  between runs."


-- 
                      Ronan Flood <R.Flood at noc.ulcc.ac.uk>
                        working for but not speaking for
             Network Services, University of London Computer Centre
     (which means: don't bother ULCC if I've said something you don't like)




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