nanog mailing list archives
Re: NTP Question
From: James R Cutler <james.cutler () consultant com>
Date: Wed, 1 May 2019 18:47:52 -0400
On Wed, May 01, 2019 at 02:35:58PM -0700, Harlan Stenn wrote:
- Why do folks want to have one or more NTP server masters that have at least 1 refclock on them in a data center, instead of having their data center NTP server masters that only get time over the internet?
Answers to that include: Keeping the Auditors happy Knowing that “everyone does it” - the vendor told them so Bragging rights (expensive hardware) Being unbothered by fighting with facilities for building penetrations and antenna mounts Misunderstanding the beauty and economy Dave Mills marvelous algorithms for consistent time based on multiple sources, even those connected via internet Unwillingness or inability to leverage other local resources capacity to run ntpd with minimal impact in order to have a good constellation of local NTP servers Willingness to farm out time service without doing a deep dive into why and how, just leaving the design to the appliance vendors This covers most of what I have encountered in providing enterprise time services for $dayjob+clients. I probably left out some significant points, but it has been a few years...
Current thread:
- Re: NTP question, (continued)
- Re: NTP question william manning (May 03)
- Re: NTP question Eric S. Raymond (May 06)
- Re: NTP question Keith Wallace (May 01)
- Re: NTP question Valdis Klētnieks (May 01)
- Re: NTP question William Herrin (May 01)
- Re: NTP question Chris Adams (May 01)
- Re: NTP question Harlan Stenn (May 01)
- Re: NTP question James R Cutler (May 01)
- Re: NTP question Mike Hammett (May 01)
- Re: NTP question Andy Smith (May 02)
- Re: NTP Question James R Cutler (May 01)
- Re: NTP Question Mel Beckman (May 01)
- Re: NTP Question Harlan Stenn (May 01)
- Re: NTP Question Mel Beckman (May 01)
- Re: NTP question Scott Weeks (May 02)
- Re: NTP question Mel Beckman (May 02)
- Re: NTP question Scott Weeks (May 02)
- Re: NTP question Ge DUPIN (May 02)