Re: Time Synchronizing Between Two Servers

2007-05-07 Thread Chuck Swiger
On May 4, 2007, at 9:10 AM, RW wrote: On Thu, 03 May 2007 11:07:34 -0400 Chuck Swiger [EMAIL PROTECTED] wrote: Sun SPARC machines have good HW clocks, and also some of the newer Macs also seem to have consistently low values in ntp.drift and handle timekeeping well. Does that matter? A good

Re: Time Synchronizing Between Two Servers

2007-05-07 Thread [EMAIL PROTECTED]
On 07/05/07, Chuck Swiger [EMAIL PROTECTED] wrote: On May 4, 2007, at 9:10 AM, RW wrote: On Thu, 03 May 2007 11:07:34 -0400 Chuck Swiger [EMAIL PROTECTED] wrote: Sun SPARC machines have good HW clocks, and also some of the newer Macs also seem to have consistently low values in ntp.drift

Re: Time Synchronizing Between Two Servers

2007-05-07 Thread RW
On Mon, 7 May 2007 12:30:29 -0700 Chuck Swiger [EMAIL PROTECTED] wrote: On May 4, 2007, at 9:10 AM, RW wrote: On Thu, 03 May 2007 11:07:34 -0400 Chuck Swiger [EMAIL PROTECTED] wrote: Sun SPARC machines have good HW clocks, and also some of the newer Macs also seem to have consistently

Re: Time Synchronizing Between Two Servers

2007-05-07 Thread Jeffrey Goldberg
On May 7, 2007, at 5:02 PM, RW wrote: If the time error is zeroed by ntpdate, and there's a drift-file, I don't see that the actual drift value makes much difference. I suspect that any quartz clock is overkill. As someone already mentioned, drift data doesn't really solve the problem if

Re: Time Synchronizing Between Two Servers

2007-05-07 Thread jdow
From: Chuck Swiger [EMAIL PROTECTED] On May 4, 2007, at 9:10 AM, RW wrote: On Thu, 03 May 2007 11:07:34 -0400 Chuck Swiger [EMAIL PROTECTED] wrote: Sun SPARC machines have good HW clocks, and also some of the newer Macs also seem to have consistently low values in ntp.drift and handle

Re: Time Synchronizing Between Two Servers

2007-05-07 Thread jdow
From: [EMAIL PROTECTED] On 07/05/07, Chuck Swiger [EMAIL PROTECTED] wrote: On May 4, 2007, at 9:10 AM, RW wrote: On Thu, 03 May 2007 11:07:34 -0400 Chuck Swiger [EMAIL PROTECTED] wrote: Sun SPARC machines have good HW clocks, and also some of the newer Macs also seem to have

Re: Time Synchronizing Between Two Servers

2007-05-07 Thread RW
On Mon, 7 May 2007 18:35:13 -0500 Jeffrey Goldberg [EMAIL PROTECTED] wrote: On May 7, 2007, at 5:02 PM, RW wrote: If the time error is zeroed by ntpdate, and there's a drift-file, I don't see that the actual drift value makes much difference. I suspect that any quartz clock is overkill.

Re: Time Synchronizing Between Two Servers

2007-05-07 Thread jdow
From: Jeffrey Goldberg [EMAIL PROTECTED] On May 7, 2007, at 5:02 PM, RW wrote: If the time error is zeroed by ntpdate, and there's a drift-file, I don't see that the actual drift value makes much difference. I suspect that any quartz clock is overkill. As someone already mentioned, drift

Re: Time Synchronizing Between Two Servers

2007-05-07 Thread Jeffrey Goldberg
On May 7, 2007, at 6:53 PM, RW wrote: I was questioning the need for a low-drift system clock on a machine that *is* running ntpd, not the need for ntpd. Ah, sorry. However, I was adding a somewhat pedantic point of distinguishing between low drift and inconsistent drift. High but

Re: Time Synchronizing Between Two Servers

2007-05-04 Thread RW
On Thu, 03 May 2007 11:07:34 -0400 Chuck Swiger [EMAIL PROTECTED] wrote: Sun SPARC machines have good HW clocks, and also some of the newer Macs also seem to have consistently low values in ntp.drift and handle timekeeping well. Does that matter? The RTC time is almost immediately

Re: Time Synchronizing Between Two Servers

2007-05-03 Thread Jeffrey Goldberg
On May 2, 2007, at 8:45 PM, Duane Hill wrote: I have two servers that have to have their time synchronized between the two to within one second. What is recommended? Currently, I have ntpd running on one and have the other synchronizing it's time off the first. ntp is the right way to

Re: Time Synchronizing Between Two Servers

2007-05-03 Thread Duane Hill
On Thu, 3 May 2007, Jeffrey Goldberg wrote: On May 2, 2007, at 8:45 PM, Duane Hill wrote: I have two servers that have to have their time synchronized between the two to within one second. What is recommended? Currently, I have ntpd running on one and have the other synchronizing it's

Re: Time Synchronizing Between Two Servers

2007-05-03 Thread Chuck Swiger
[EMAIL PROTECTED] wrote: [ ... ] It may very well be noisier than just serving out ntp to the local network, what with talk about elections and such every 4 minutes, but generally everything is kept within 0.050 seconds (and running ntpd on all of the local machines feels like serious overkill).

Re: Time Synchronizing Between Two Servers

2007-05-03 Thread Dag-Erling Smørgrav
Chuck Swiger [EMAIL PROTECTED] writes: Simply setting the date upon system boot and maybe once a day using cron to call ntpdate or whatever is probably good enough for any client machine, and OK for non-important servers where the exact timekeeping doesn't matter much. Why, when setting up

Time Synchronizing Between Two Servers

2007-05-02 Thread Duane Hill
I have two servers that have to have their time synchronized between the two to within one second. What is recommended? Currently, I have ntpd running on one and have the other synchronizing it's time off the first. Thanks ___

Re: Time Synchronizing Between Two Servers

2007-05-02 Thread Jeff Mohler
Is that working? If it is..seems you nailed it. On 5/2/07, Duane Hill [EMAIL PROTECTED] wrote: I have two servers that have to have their time synchronized between the two to within one second. What is recommended? Currently, I have ntpd running on one and have the other synchronizing it's

Re: Time Synchronizing Between Two Servers

2007-05-02 Thread Duane Hill
On Wed, 2 May 2007, Jeff Mohler wrote: Is that working? If it is..seems you nailed it. It is working. I just didn't know if there was another way. I will continue on with the way it is. Thanks. ___ freebsd-questions@freebsd.org mailing list

Re: Time Synchronizing Between Two Servers

2007-05-02 Thread Dan Nelson
In the last episode (May 03), Duane Hill said: On Wed, 2 May 2007, Jeff Mohler wrote: Is that working? If it is..seems you nailed it. It is working. I just didn't know if there was another way. I will continue on with the way it is. Thanks. Yes, ntp is the best way to synchronise

Re: Time Synchronizing Between Two Servers

2007-05-02 Thread [EMAIL PROTECTED]
On 02/05/07, Duane Hill [EMAIL PROTECTED] wrote: On Wed, 2 May 2007, Jeff Mohler wrote: Is that working? If it is..seems you nailed it. It is working. I just didn't know if there was another way. I will continue on with the way it is. Thanks. I prefer to have one machine (generally