[time-nuts] NTP and Windows 7

Hal Murray hmurray at megapathdsl.net
Thu Mar 27 16:06:32 EDT 2014

martin.burnicki at burnicki.net said:
> Please note under Windows you should configure all upstream servers with  a
> line reading

> server aa.bb.cc.dd iburst minpoll 6 maxpoll 6 

There are lots of times when reducing maxpoll is reasonable, but I think an 
unqualified suggestion is not appropriate.

maxpoll of 6 polls every 64 seconds.  The default maxpoll is 10, or 1024 
seconds, so that's a 16x[1] increased load on the servers.  Some/many people 
would consider that to be abusive use of a resource.

If you are using your servers, you can do whatever you want.  If you are 
using your ISP's servers or a friends, then whatever they agree to is fine.  
The NIST servers are already heavily/over loaded.  I'm not sure if the pool 
could stand a 16x increase in load.

How many other countries run "official" NTP servers, and how heavily are they 


1)  It's not actually 16x because there is the ramp up time and ntpd 
automatically ramps down when it thinks it needs to.  The latter often 
happens if the temperture/load changes.

These are my opinions.  I hate spam.

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