[ntp:questions] client configuration: it's sufficient 3 servers ?

Brian Utterback brian.utterback at oracle.com
Fri May 24 16:42:42 UTC 2013

Peering them is a good idea, but isn't going to help, since they will 
each view the other as being of a higher stratum then their upstream 

On 5/24/2013 10:30 AM, Rob wrote:
> Brian Utterback <brian.utterback at oracle.com> wrote:
>> On 5/24/2013 5:27 AM, Rob wrote:
>>> claim that 2 servers is not good because they may have different
>>> time and you will not be able to tell which one is right, but in
>>> a correctly configured ntp server it will normally not happen that
>>> it serves wrong time without noticing it.
>> You are missing the point that it is not the case that two different
>> servers may have different time, it is the case that they *will* have
>> different time. The only question is by how much. Obviously, the closer
>> together they are, the less the impact will be.
> These are two servers within an organization.  They can be interconnected
> with a "peer" line.  They should be closely together until one or both
> of them get "unsynchronized", which the clients will notice.
> Of course, with a LOCAL clock they will remain synchronized to LOCAL
> and they can drift away from real time.
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