🅱🅸🅶🅾🆁🆁🅴.🅾🆁🅶Mar 16
Aviation weather for Pointe-à-Pitre Le Raizet airport (Guadeloupe) is “TFFR 161300Z AUTO 10018KT 9999 FEW036 28/19 Q1019 TEMPO 09018G28KT” : See what it means on https://www.bigorre.org/aero/meteo/tffr/en #pointeapitreleraizetairport #airport #pointeapitre #guadeloupe #tffr #ptp #metar #aviation #aviationweather #avgeek vl
Pointe-à-Pitre Le Raizet airport (Guadeloupe) aviation weather and informations TFFR PTP

Aviation weather with TAF and METAR, Maps, hotels and aeronautical information for Pointe-à-Pitre Le Raizet airport (Guadeloupe)

Bigorre.org
Andi ChandlerMar 11

As well as the obvious implications to navigation both at sea and in the air, this is a timely reminder not to rely only on satellite-based signals for network time synchronisation.

#GPS #GNSS #jamming #NTP #PTP #time

https://www.france24.com/en/middle-east/20260306-surge-gps-interference-strait-hormuz-increases-shipping-risks

Surge in GPS interference around Strait of Hormuz increases shipping risks

More than 1,100 vessels have been hit by GPS interference across the Middle East Gulf since the start of the conflict, according to maritime firm Windward. Experts warn these attacks pose severe risks to navigation and are contributing to the de facto blockade of the strategic Strait of Hormuz.

FRANCE 24
Show threadMarkus LindenbergMar 10

Fun fact: The best way to enable ptp_kvm on #coreos is ensuring the kernel arg ignition.platform.id=qemu is set. Then coreos-platform-chrony-config.service will load ptp_kvm and configure chrony accordingly.

rpm-ostree kargs --replace=ignition.platform.id=qemu

I was wondering why another VM at Ionos had ptp_kvm working without me setting it up. It turned out my Hetzner VM had ignition.platform.id=metal which prevents automatic ptp_kvm setup.

#hetzner #timekeeping #ntp #ptp #kvm #ionos

Markus LindenbergMar 9

Today I learned: Hetzner supports ptp_kvm for time sync, no ntp servers necessary (although I still have them in my config).

#hetzner #timekeeping #ntp #ptp #kvm

Show threadBruce Simpson, Ph.D.Mar 8
This does not prevent guest VMs from syncing to #PTP, but you won't get the benefits of hardware #timestamping you may as well rely on your #hypervisors native mechanisms, unless you need to measure pDelayResp latency and jitter on the virtual switch itself (in this case, #Linux bridge).
Daniel Gil Jan 29

La web impulsada des de la #PTP, i amb un manifest i amb adhesions per a entitats.

https://sensetrensnohihafutur.com/

#transportpúblic #manifestació7f

JoshJan 26
Introducing Pixie; yet another GNSS disciplined Raspberry Pi timeserver setup. There are a number of low-level tweaks including a realtime kernel build, per-CPU process isolation, PTP grandmaster time support, and NTP server support. Check out the wiki for more details!
https://github.com/josh-blake/pixie #gnss #raspberrypi #rpi5 #embedded #timeserver #ptp #ntp
GitHub - josh-blake/pixie: A Raspberry Pi 5 GPS Time Disciplined Stratum 1 Time Server with PTP and Realtime Kernel

A Raspberry Pi 5 GPS Time Disciplined Stratum 1 Time Server with PTP and Realtime Kernel - GitHub - josh-blake/pixie: A Raspberry Pi 5 GPS Time Disciplined Stratum 1 Time Server with PTP and Realt...

GitHub
Wolfgang StiefJan 8

TIL: Besides UTC, there also is TAI – Temps Atomics International aka International Atomic Time. And well … TAI currently is UTC +37s 🤯

For other interesting things about time, computer time and time protocols, I highly recommend the talk on PTP from last years #39C3: https://media.ccc.de/v/39c3-excuse-me-what-precise-time-is-it #ptp #ntp #timeprotocol

Excuse me, what precise time is It?

media.ccc.de
N-gated Hacker NewsJan 4
🚂🤖 Eurostar's #AI #chatbot decided to take a scenic route #off the track, proving once and for all that even machines can have "off #days." 😂 But fear not! #PTP is here to save the day with enough acronyms to make your head spin faster than a runaway #train. 🚀🔤
https://www.pentestpartners.com/security-blog/eurostar-ai-vulnerability-when-a-chatbot-goes-off-the-rails/ #Eurostar #humor #technology #machinelearning #HackerNews #ngated
Eurostar AI vulnerability: when a chatbot goes off the rails | Pen Test Partners

  TL;DR  Introduction  I first encountered the chatbot as a normal Eurostar customer while planning a trip. When it opened, it clearly told me that “the answers in this chatbot are generated by AI”, which is good disclosure but immediately raised my curiosity about how it worked and what its limits were. Eurostar publishes a […]

Pen Test Partners
Opa Gollum Catuvolcus DN9MSJan 3

Nur die Richtigkeit der Zeit bringt die Richtigkeit der Realität. Für eine Annäherung dessen bin ich immer zu haben.

Auf dem #39c3 wurde #PTP zur Synchronisation der Video Aufzeichnungen genutzt. #NTP mit mehreren ms Abweichung ist spürbar. Aber im Q&A Teil zweifel ich an, dass unser Gehör und Gehirn im ns Bereich arbeitet. µs Genauigkeit denke ich hier wäre richtig.

Und ab ins Rabbit Hole und zig Webseiten mit abweichender genauer Richtigkeit.

https://media.ccc.de/v/39c3-excuse-me-what-precise-time-is-it

Excuse me, what precise time is It?

media.ccc.de