Does anyone know if you can use #NTP over #Tor to keep the #CIA from knowing where I synchronize my devices’ clocks from? 👀⏰

#TorProject #NetworkTimeProtocol #TimeTravel

⏲️ Wer hat an der Uhr gedreht? In Wissenschaft & Telekommunikation etc. kann das #NetworkTimeProtocol (NTP) an seine Grenzen stoßen. Hier kommt das #PrecisionTime Protocol (PTP) ins Spiel. Was es damit auf sich hat, könnt Ihr hier lesen #DFNMitteilungen @FAU 👉 https://www.dfn.de/zeitsynchronisation-mit-ptp/

Schon etwas älter der Artikel, aber noch sehr interessant ...

heise+ | Manipulationssichere Systemzeit dank Network Time Security | c't Magazin https://www.heise.de/hintergrund/Manipulationssichere-Systemzeit-dank-Network-Time-Security-6287113.html #heiseplus #NTP #NetworkTimeProtocol

Dr. David L. Mills, the inventor of Network Time Protocol (NTP), died peacefully at age 85 on January 17, 2024.

Dr. Mills created the Network Time Protocol (NTP) in 1985 to address a crucial challenge in the online world: the synchronization of time across different computer systems and networks.

#NTP #NetworkTimeProtocol

https://arstechnica.com/gadgets/2024/01/inventor-of-ntp-protocol-that-keeps-time-on-billions-of-devices-dies-at-age-85/

Synchronize your Domain Controller with an external time source

https://techdirectarchive.com/2020/04/08/how-to-synchronize-your-domain-controller-with-an-external-time-source-in-windows/

#MicrosoftWindows, #Network, #NetworkTimeProtocol, #NTP, #Windows, #WindowsServer, #WindowsServer2019, #WindowsServer2022

Read about our #opensource work implementing the Network Time Protocol in #rustlang!

https://tweedegolf.nl/nl/blog/75/implementing-the-network-time-protocol-ntp-in-rust

Folkert walks you through the whys and hows of this security-motivated implementation.

#ntp #networktimeprotocol #networktiming #opensourcesecurity #softwaresecurity

#NetworkTimeProtocol (#NTP) - #Computerphile

https://www.youtube.com/watch?v=BAo5C2qbLq8&ab_channel=Computerphile

#Computing #Computers #Time #Clocks #Timekeeping #IT #InformationTechnology #Synchronization #Synchronisation #Networks #Networking #ComputerNetworks #ComputerNetworking

@ajroach42
One thing about #OSes, many are of course privacy nightmares, and even nice linux ones we might think are good can often be caught 'phoning home' to a server like Amzn, Msft, Cflare under a (silly) proviso of '#ConnectivityCheck'. The first three letters of that hashtag say enough in our view.

Many also phoneHome to #Cloudflare and other #dotcons for #NetworkTimeProtocol (seen as #NTP when running #tcpdump).

Bitcoin Mining ASICs Repurposed to Keep NTP Server on Track

They say time is money, but if that's true, money must also be time. It's all figurative, of course, but in the case of this NTP server heater powered by Bitcoin mining dongles, money actually does become time.

This is an example of the lengths to which Network Time Protocol aficionados will go in search of slightly better performance from their NTP servers. [Folkert van Heusden], having heard that thermal stability keeps NTP servers happy, used a picnic cooler as an environmental chamber for his Pi- and GPS-based NTP rig. Heat is added to the chamber thanks to seven Block Erupter ASIC miner dongles, which are turned on by a Python script when a microcontroller sends an MQTT message that the temperature has dropped below the setpoint.

Each dongle produces about 2.5 Watts of heat when it's working, making them pretty effective heaters. Alas, heat is all they produce at the moment -- [Folkert] just has them working on the same hash over and over. He does say that he has plans to let the miners do useful work at some point, not so much for profit but to at least help out the network a bit.

This seems like a bit of a long way around to solve this problem, but since the mining dongles are basically obsolete now -- we talked about them way back in 2013 -- it has a nice hacky feeling to it that we appreciate.

#clockhacks #asic #bitcoin #blockchain #hash #mining #mqtt #networktimeprotocol #ntp #oven #temperature

Portable GPS Time Server Powered by the ESP8266

Most Hackaday readers will be familiar with the idea of a network time server; a magical box nestled away in some distant data center that runs the Network Time Protocol (NTP) and allows us to conveniently synchronize the clocks in our computers and gadgets. Particularly eager clock watchers can actually rig up their own NTP server for their personal use, and if you're a true time aficionado like [Cristiano Monteiro], you might be interested in the portable GPS-controlled time server he recently put together.

The heart of the build is a NEO-6M GPS module which features a dedicated pulse per second (PPS) pin. The ESP8266 combines the timestamp from the GPS messages and the PPS signal to synchronize itself with the atomic clock aboard the orbiting satellite. To prevent the system from drifting too far out of sync when it doesn't have a lock on the GPS signal, [Cristiano] is using a DS3231 I2C real-time clock module that features a high accuracy temperature-compensated crystal oscillator (TCXO).

These components, along with the open source code provided in the project's GitHub repository, gives you an extremely accurate Stratum 1 NTP server that can respond to client requests over WiFi. But to take the idea a step further, [Cristiano] added an OLED and some LEDs to provide feedback, and put the whole thing inside a handsome enclosure along with a 18650 cell, TP4056 charging module, and DC-DC buck converter. The result is a fully wireless time server that can be deployed anywhere, which as an amateur radio operator, he plans to use in the field.

Whether you take yours on the road or permanently mount it, this project is an excellent way to get more acquainted with NTP and GPS reception. It's a great time (no pun intended) to start experimenting with this technology too, as there have been some grumblings that terrestrial radio time signals may go dark in the near future.

#clockhacks #microcontrollers #esp8266 #gps #gpsclock #networktimeprotocol #ntp #ntpserver

So… #I2P users have at times had wildly poor network time syncronicity and connectivity issues?

By default most #NetworkTimeProtocol (NTP) packets are sent every 30 minutes to an hour, over an #unencrypted UDP connection (port 123).

Do we need to look into #NTP packets, are they being intercepted? Is it worth adjusting our NTP servers (or /etc/systemd/timesyncd.conf file) to ensure secure (#NTPv4) packet transfers?

@i2p

Hackers Actively Exploit 0-Day in CCTV Camera Hardware - Criminals behind botnets Chalubo, FBot and Moobot attack unpatched vulnerabilities in the commerci... more: https://threatpost.com/hackers-exploited-0-day-cctv-camera/154051/?utm_source=rss&utm_medium=rss&utm_campaign=hackers-exploited-0-day-cctv-camera #networktimeprotocol #internetofthings #vulnerabilities #ipvideocamera #vulnerability #cctvcameras #miraibotnet #qihoo360 #botnets #chalubo #ntpdate #moobot #lilin #ddos #fbot #iot

Chrony - An Alternative NTP Client And Server For Unix-like Systems #Chrony #Linux #NetworkTimeProtocol #NTP #OpenSource
https://www.ostechnix.com/chrony-an-alternative-ntp-client-and-server-for-unix-like-systems/