[ntp:questions] two ntp servers

rancid moth rancidmoth at yahoo.com
Thu Feb 16 21:55:36 UTC 2006


not being very familiar with the ntp protocol, and currently introducing 
myself to it properly (i.e. have always used though never dug deeply into 
it), i have established two ntp services on two different Linux machines. 
Both ntp servers are pointing to the _same_ upstream server.  There is a 
four minute difference in time on the machines.  Lets call them machine A 
and B.  initially i established them to the same time, by synching B's time 
from A which itself was synched from the upstream internet ntp server.  If i 
then modify B's config to also synch from the same upstream source, B, given 
enough time, will drift 4 minutes ahead of A.  Can someone please point me 
to an introductory explanation as to why/how this can occur.


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