Et voilà le petit Stratum 1!
(Je vise le stratum 0 :))

#ntp #luxembourg #poolntp #ntppool #stratum1 #homelab

The clock in my new router (Supermicro X11SBA-LN4F Mini-ITX board) drifts faster than ntpd can slew it, so it does a step-jump of a few hundred ms every hour or so. So far it doesn't seem to have bad consequences, but it is far outside of tolerances for a server board. My other machines have drift values of around 5 ppm; this one far exceeds the tolerable maximum of 500.

Has anyone here ever seen something like this? Anything I can do to fix it? An oscillator or clock chip to replace?

Please boost, maybe someone has an idea.

#ntp #supermicro #fedipower

🕒 Sabia que a Internet funciona melhor quando todos os computadores estão com o horário certinho? 🌐

O NTP Pool Project é uma rede mundial de servidores que mantém milhões de dispositivos sincronizados, de forma gratuita e aberta.
Se você tem um servidor, pode até contribuir com o pool!

🔗 Mais info: https://www.ntppool.org/pt/

#NTP #TempoNaInternet #Tecnologia #OpenSource #Infraestrutura

pool.ntp.org: the internet cluster of ntp servers

resurrection du server NTP ipv6 pour le pool Luxembourg...

https://www.ntppool.org/a/krakoukass

#ntp #pool #luxembourg #ipv6

🌗 美國國家標準與技術研究院(NIST)因斷電事件,時間訊號暫時偏移 5 微秒
➤ 當微秒級的精確成為一場危機:NIST 應對斷電危機的時序考驗
https://www.jeffgeerling.com/blog/2025/nist-was-5-μs-utc-after-last-weeks-power-cut
美國國家標準與技術研究院(NIST)位於科羅拉多州博爾德的設施,因強風導致大規模停電,並在備用發電機故障後,主要時間訊號伺服器短暫偏離了國際協調時間(UTC)。儘管偏差僅為 5 微秒,但對高度依賴精確時間的科學研究及學術機構影響甚鉅。NIST 透過啟用其他設施的備援機制、應用電池備份及緊急電源,成功將時間偏差控制在極小範圍內,並維持伺服器線上運作,避免對廣大用戶造成影響。此次事件凸顯了時間基礎設施的脆弱性,並引發對過度依賴 GPS 的擔憂,促使各方尋求更多元的時間訊號備援方案。
+ 沒想到連時間訊號都會有這種意外!幸好 NIST 有備案,不然影響範圍一定很大。
+ 這也太驚險了吧!5 微秒聽起來不多,但對某
#科技 #時間同步 #基礎設施 #NIST #NTP #GPS
NIST was 5 μs off UTC after last week's power cut | Jeff Geerling

NIST's NTP clock was microseconds from disaster

YouTube
NF.sec – Bezpieczeństwo systemu Linux - NTS – Network Time Security

K orzystając z protokołu NTP (ang. Network Time Protocol) możemy mieć pewność, że nasze serwery synchronizują swój czas z wyspecjalizowanymi serwerami czasu opartymi na zegarach atomowych (w zależności od poziomu stratum). Utrzymanie precyzyjnego i aktualnego czasu na serwerach (i ogólnie urządzeniach biorących udział w komunikacji) nie jest tylko kwestią możliwości odpowiedzi na pytanie: „- która […]

Primary time scale failure at NIST Boulder campus; significant impact on NTP services

RE: https://journa.host/@w7voa/115754351058263109

Rats. NIST is one of the reference clocks we use at work (1 of 5). Will have to keep an eye on this and choose an alternative if they struggle to restore an accurate service.

#time #ntp #nist #boulder

So, why not just use GPS for NTP, I foolishly ask...

Go ahead and read about leap-second workarounds. Go on. I'll wait for you here.

https://gpsd.gitlab.io/gpsd/gpsd-time-service-howto.html

#ntp #gps #leapsecond

GPSD Time Service HOWTO

How to set up an NTP Stratum 1 server using GPSD.