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IEEE 1952: the new standards project for resilient PNT

November 3, 2022 by Douglas Arnold Leave a Comment

Five-minute facts about packet timing If you’ve been paying attention, and I know you have, there has been a lot of discussion lately about the fact that the critical infrastructure of the world is dependent on GNSS for position, navigation, and timing (PNT).  I’m talking about everything that differentiates us from wild animals: power, communications, […]

Filed Under: Security

Network Time Security (NTS): Updated security for NTP

July 14, 2021 by Douglas Arnold 1 Comment

Five-minute facts about packet timingNetwork Time Protocol version 4 (RFC 5905) is a spectacularly successful network time transfer protocol. It can be found in almost every IP network. Often NTP messages will traverse leased lines or the “public internet”. Therefore, it is especially important that an NTP client can determine that the NTP server is […]

Filed Under: NTP, Security

PTP Auto Mode

June 13, 2020 by Andreja Jarc Leave a Comment

Five Minute Facts About Packet Timing By Andreja Jarc. In this post I would like to introduce a method which can be deployed in versatile PTP networks, professional media, power or any other timing network.  Basically, it is a method which uses a combination of PTP and the Meinberg MRS (Multi-Reference-Source) feature which build together […]

Filed Under: IEEE 1588, Industry Applications, Security

GNSS Spoofing and how to mitigate it

April 14, 2020 by Douglas Arnold Leave a Comment

Five Minute Facts About Packet Timing In a previous post I talked about GNSS jamming and how to mitigate it. Today I will discuss GNSS spoofing. Once again GNSS means Global Navisgation Satellite System, which includes not only GPS, but similar systems like the European Galileo. GNSS jamming is bad, but at least you always […]

Filed Under: IEEE 1588, Industry Applications, NTP, Security

GNSS jamming and how to mitigate it

April 12, 2020 by Douglas Arnold Leave a Comment

Five Minute Facts About Packet Timing This post discusses GNSS jamming, for a discusstion of GNSS Spoofing see the follow up post. Before a timeserver transmits messages with timing information it usually gets that information from a GNSS receiver. That is a Global Navigation Satellite System. Such systems include the Global Positioning System (GPS), Galileo, […]

Filed Under: IEEE 1588, Industry Applications, NTP, Security

Trusted Source Mode

February 2, 2018 by Andreja Jarc 2 Comments

By Andreja Jarc. In the latest release of our LANTIME firmware 6.24 you can find a new feature called Trusted Source. This additional functionality is much awaited by everyone who is looking for a method that will help to mitigate vulnerabilities of the GPS signal. Anomalies in the GPS timing caused by unfriendly signal spoofing […]

Filed Under: Configuration Guidelines, Security Tagged With: GPS, Rubidium clock, safety, security

Messing with your Radio Time Signal

June 28, 2016 by Heiko Gerstung 2 Comments

Last month two Chinese researchers gave a presentation titled “Time is on my Side” during the “Hack in The Box” 2016 SecConf event in Amsterdam, NL (https://conference.hitb.org/hitbsecconf2016ams/) . In this presentation, the researchers outlined a way to attack NTP servers by spoofing AM and GPS radio signals which are used as the time reference by most […]

Filed Under: NTP, Security Tagged With: Beidou, DCF77, GLONASS, GPS, LANTIME, ntp, security, WWVB

NTP Security and Protection

July 31, 2015 by Andreja Jarc 10 Comments

By Andreja Jarc. Synchronized timing is vitally important when many systems work together in a network.  Services such as Logfiles, Correlation of Events, User Authentication Mechanisms, Job Scheduling e.g. for backups or Active Directories running on distributed platforms use accurate timestamps to record events in chronological order and to avoid conflicts with data replication. Without […]

Filed Under: Configuration Guidelines, NTP, Security

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