Steve Huff wrote:
>
> On Apr 2, 2007, at 11:32 AM, Ken Godee wrote:
>
>>> Ok. I'm looking at a client that needs to keep their server time
>>> close as reasonably possible (within a minute) of the actual time of
>>> day. I've installed the RPM for NTP and I'm looking for tips on
>>> what the simplest setup should be, ie:
>>> What server(s) should I be using for sync?
>>> Should I just run it from a cron every 20 minutes or so?
>>
>> I do wish it would prefer the time server offered by DHCP:-( I'd
>> rather sync one computer over the Internet, and the rest off my local
>> network.
>
> how large is your local network? arguably you should be using at
> least two, and ideally three, timeservers on the local network; ntp
> works ok with only one source of time, but times will converge much
> more quickly with multiple sources of time.
>
> don't run 'ntpdate' from a cron job; that defeats the whole purpose of
> running ntpd.
and this won't work if ntpd is running ("socket already in use" or
something similar).