# Tech report on S/NTP clients behavior

**URL:** <https://community.ntppool.org/t/tech-report-on-s-ntp-clients-behavior/4107>\
**Category:** Client Configuration and Development\
**Created:** [October 21, 2025, 6:30am UTC](https://community.ntppool.org/t/tech-report-on-s-ntp-clients-behavior/4107 "2025-10-21T06:30:16Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![giovane](https://sea2.discourse-cdn.com/flex016/user_avatar/community.ntppool.org/giovane/32/755_2.png) [@giovane](https://community.ntppool.org/u/giovane)\
**Post date:** [October 22, 2025, 7:58am UTC](https://community.ntppool.org/t/tech-report-on-s-ntp-clients-behavior/4107/5 "2025-10-22T07:58:47Z")

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thanks @Kets_One

> Interesting material and concerning to see that MacOS and Windows are so vulnerable…

we were equally surprised by these results.. I mean, these are gigantic vendors with no excuses to run such service.

I do hope that Ubuntu switch to `chrony` with NTS by default encourage MS and Apple to fix their clients and use NTS

> Especially the Deep Dive on the NTP Pool! This might add some valuable insight about underserved zones.

Oh yeah, we looked into that a couple of years ago. We posted it here and I remember that @ask said he planned to phase out country zones if memory serves me well. Have a look in [this thread](https://community.ntppool.org/t/thoughts-about-the-geodns-mapping/3475/5) here

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