My Linux box runs all the time and, while the system clock is reasonably accurate, it does drift a bit.
What utilities and time source do others here use to keep their clocks accurate? Do you just run netdate with a known good time source from your crontab or what?
I use ntp configured to get the time from bear.zoo.bt.co.uk. This seemes to work quite well.
Stuart On Monday 08 August 2005 13:35, Chris Green wrote:
My Linux box runs all the time and, while the system clock is reasonably accurate, it does drift a bit.
What utilities and time source do others here use to keep their clocks accurate? Do you just run netdate with a known good time source from your crontab or what?
On 8/8/05, Chris Green chris@areti.co.uk wrote:
My Linux box runs all the time and, while the system clock is reasonably accurate, it does drift a bit.
What utilities and time source do others here use to keep their clocks accurate? Do you just run netdate with a known good time source from your crontab or what?
NTP is the program to use for extreme time syncing. It can watch multiple time sources, the time delay between oneself and the source, and one's own internal clock drift. Sorted!
Tim.
Chris Green chris@areti.co.uk asked:
What utilities and time source do others here use to keep their clocks accurate?
I run ntpdate on boot. I'm sure there's a Really Good Reason I'm not using an ntp daemon on this machine, but I forgot it.
On Mon, Aug 08, 2005 at 05:38:15PM +0100, MJ Ray wrote:
Chris Green chris@areti.co.uk asked:
What utilities and time source do others here use to keep their clocks accurate?
I run ntpdate on boot. I'm sure there's a Really Good Reason I'm not using an ntp daemon on this machine, but I forgot it.
Thanks for all the comments and ideas.
I think I'll probably go with OpenNTPD as there's a ready made Slackware package for that.
On 08/08/05 17:38:15, MJ Ray wrote:
I run ntpdate on boot. I'm sure there's a Really Good Reason I'm not using an ntp daemon on this machine, but I forgot it.
There can be some interesting behaviour with interval timers and NTP.
For example, if you set an interval timer to occur at midnight each night it can sometimes end up firing a second or more before midnight. I don 't remember which way your system clock has to be out, i.e. whether it's the clock naturally gains and NTP is slowing it, or vice versa.
Steve.
-
Chris Green -
MJ Ray -
Steve Fosdick -
Stuart Bailey -
Tim Green