comp.os.linux.networking

On Fri, 14 Mar 2008 16:28:46 +0000, EricThompson wrote:

> I started using ntpd and ntpdate a few months ago to keep a number of
> servers in sync with each other -- important for my backup tasks. It was
> working so well, I paid no attention after awhile, but I noticed a few days
> ago that the time change has created a problem for me. While ntpd is
> working great on my server, with the time change giving it no problem, when
> the client servers "sync" to mine, they come up an hour off. I'm sure
> there is just some simple thing I have to do, but I just have not been able
> to find it. What I notice is that my server gives the time in PDT, and the
> client servers give it in PST. That's obviously what I need to fix, but
> how the #$@#%@#$ do I fix it? I can't find anything in man pages, I've
> searched online, blah, blah. Fact is, if I use ntpdate on the client
> machines to sync directly with pool.ntp.org, the same problem occurs. Why
> does it work on mine, but not on the others?
>
> Sorry, I'm starting to ramble now. I'll stop.
>
> Thanks,
>
> Eric

Couple of things...

The Energy Policy Act of 2005, changed when DST changes. This took
effect last year. Electronic devices that were not updated to use the
new dates change DST at the wrong time. My old Tivo for instance (
not sub'd... just use as a digital vcr ) does not have the Linux patch
needed to fix the time so it is off by an hour.. I just changed the time
zone on the device and I'll change it back when the DST change takes
effect on it in April.

NTP uses UTC time. The device that gets the time info from the NTP source
applies it's own DST / Timezone logic and displays the local time. So...
if you have some devices that have been updated with the new rules, they
will show the correct time. If you have old devices/software that has not
been updated, it will show the wrong time until April.

... something like that.

I wish that they would have just gone up 30 minutes and left it there...
no nore DST... just split the difference and added 30 minutes to
everything.

jack




--
D.A.M. - Mothers Against Dyslexia

see http://www.jacksnodgrass.com for my contact info.

jack - Grapevine/Richardson