[ntp:questions] A conceptual NTP question

Hal Murray hal-usenet at ip-64-139-1-69.sjc.megapath.net
Mon Aug 20 16:58:51 UTC 2007

>I see that nslookup resolves 1.us.pool.ntp.org into a list of IP
>addresses.  How does ntp deal with several IP addresses for a single
>nerver name in ntp.conf?

It picks one and remembers it until you restart ntpd.

Most DNS servers deliver the set of addresses in random
order to distribute the load.  The pool has more servers
than will fit in a UDP packet (at least for some of their
addresses) so there is another mechanism to select
a random subset.  I think it picks a new subset every
hour or so.

These are my opinions, not necessarily my employer's.  I hate spam.

More information about the questions mailing list