nanog mailing list archives

Re: Cost effective time servers


From: Quan Zhou <quan () posteo net>
Date: Fri, 21 Jun 2019 22:57:01 +0800

Yep, went through the same route until I figured out that GPS time is a bit ahead of UTC. We simply use a windows NTP server for internal use at work, and I won't recommend doing so, because it went off the rails once for a while despite of having several upstream servers pointed to.

Also there's a community out there dedicated for atomic clocks for civil use, it'd be fun to have one, set it up, and watch it ticking.

On 6/21/2019 11:44 AM, Andy Ringsmuth wrote:
On Jun 20, 2019, at 10:18 PM, Jay Hennigan <jay () west net> wrote:

On 6/20/19 07:39, David Bass wrote:
What are folks using these days for smaller organizations, that need to dole out time from an internal source?
If you want to go really cheap and don't value your time, but do value knowing the correct time, a GPS receiver with a 
USB interface and a Raspberry Pi would do the trick.
Not sure how accurate you need, but I just use a Raspberry Pi as a pool.ntp.org node. I thought about going the GPS 
route with it but didn’t want to mess with it.


-Andy


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