On Sun, Feb 15, 2004 at 09:28:45PM +0100, Matthias Urlichs wrote: > Hi, Steve Langasek wrote: > > Actually, this is fundamental to the NTP protocol; you get a more accurate > > clock if you can cross-reference the timestamps between multiple servers. > > Pointing to pool.ntp.org may give you a consistently accessible *single* > > server, but you don't get the assurance of having multiple referents. > > (You'll just have a single referent, which may be a different server each > > time you poll it.) > Sure you do. NTP caches the IP address, and BIND round-robins or > randomizes multiple addresses on one hostname. > Thus, if you have three pool.ntp.org lines in your /etc/ntp.conf, you get > three stable servers (until you restart the server, then you get > three different ones). We did not want to do this by default because we > didn't (yet?) ask the pool.ntp.org people whether that would be > acceptable. It's their servers, after all. Ah, ok -- *that* sounds like something that would be a reasonable default (whereas pointing to one server at a time, as far as I understand NTP, would not be). Cheers, -- Steve Langasek postmodern programmer
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