On 2010-06-24, pc <[email protected]> wrote: > Many users of this list have a requirement to synchronize a number of > machines within some user-defined limit, but they don't care if they > are all offset from UTC by a few minutes.
The problem is that most time island operators appear to make the unstated assumption that ntpd is a magic box which will make all of their clocks tick at 1 second per second. > Time islands would seem to be a common use-case, and it's my opinion > that the RFC's assertion that genuine NTP networks must be based on > UTC is an unnecessary restriction. A "genuine NTP network" needs a stable reference source. Each ntpd in the network steers its node clock to bring it as close as possible to the reference. Otherwise you have a herd of kittens playing follow the leader. UTC is a ubiquitous stable reference source which is usually cheaply available via a network or an inexpensive timing GPS receiver. Other stable reference sources, such as a Rubidium disciplined PPS generator, are also suitable. -- Steve Kostecke <[email protected]> NTP Public Services Project - http://support.ntp.org/ _______________________________________________ questions mailing list [email protected] http://lists.ntp.org/listinfo/questions
