Firewall Wizards mailing list archives
Re: Acqusition of time
From: "Charles W. Swiger" <chuck () codefab com>
Date: Wed, 29 Jan 2003 14:02:44 -0500
On Wednesday, January 29, 2003, at 06:02 PM, Luis Bruno wrote:
running ntpdate or some such upon system boot is a pretty good idea.Just at boot? I'd sync the machine clock to the NTP clock periodically, to avoid "jumps" in time; any reason NOT to do this?
Yes and no. If you want to smoothly adjust the system clock without "jumps", you're better off running ntpd continuously than running ntpdate via cron on some scheduled basis. ntpd will compute the system clocks' intrinsic drift from reference time sources, and tell the kernel to skew the time via adjtime() rather than "jump" via settimeofday().
[ Running ntpdate at boot is the best way of correcting any major errors with the system time. Running ntpd from there on is the best way of keeping the system time syncronized. ]
-ChuckChuck Swiger | chuck () codefab com | All your packets are belong to us. -------------+-------------------+-----------------------------------
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Current thread:
- Acqusition of time Brian Monkman (Jan 29)
- Re: Acqusition of time R. DuFresne (Jan 29)
- Re: Acqusition of time Paul D. Robertson (Jan 29)
- Re: Acqusition of time Volker Tanger (Jan 29)
- Re: Acqusition of time Charles W. Swiger (Jan 29)
- Re: Acqusition of time Luis Bruno (Jan 29)
- Re: Acqusition of time Charles W. Swiger (Jan 29)
- Re: Acqusition of time Luis Bruno (Jan 29)
- <Possible follow-ups>
- RE: Acqusition of time Noonan, Wesley (Jan 29)
- RE: Acqusition of time dave (Jan 29)
- RE: Acqusition of time Paul D. Robertson (Jan 29)
- RE: Acqusition of time dave (Jan 29)
- RE: Acqusition of time Paul D. Robertson (Jan 29)
- RE: Acqusition of time dave (Jan 29)
- RE: Acqusition of time dave (Jan 29)
- RE: Acqusition of time Tina Bird (Jan 29)
- Re: Acqusition of time Volker Tanger (Jan 29)
- Re: RE: Acqusition of time Paul D. Robertson (Jan 29)