- IETF Data Tracker
Keep track of how draft-ietf-ntp-using-nts-for-ntp-28 is progressing.
- Network Time Security for the Network Time Protocol
This memo specifies Network Time Security (NTS), a mechanism for using Transport Layer Security (TLS) and Authenticated Encryption with Associated Data (AEAD) to provide cryptographic security for the client-server mode of the Network Time Protocol (NTP).
- CISA: Time Guidance for Network Operators, CIOs and CISOs
Practical guidance and recommendations for network operators, CIOs, and CISOs on time resilience and security practices in enterprise networks and systems.
- How to Use Netnod’s NTS Service
Netnod recently launched a Network Time Security (NTS) service. This page explains how you can start using NTS. It explains how to set up an NTS client and connect to Netnod’s NTS servers.
TimeNL has been set up by experts at SIDN Labs. It’s available for anyone to use, free of charge.
SIDN’s NTS Pilot homepage.
- NIST Internet time service
Information from The National Institute of Standards and Technology (NIST) on Internet time.
- NTP Pool Project
The pool.ntp.org project is a big virtual cluster of timeservers providing reliable easy to use NTP service for millions of clients.
- Simple Network Time Servers
Microsoft’s list of the Simple Network Time Protocol (SNTP) time servers that are available on the Internet.
- Google’s Public NTP
A free, global time service that you can use to synchronize to Google’s atomic clocks.
- Setting up NTS-Secured NTP with NTPsec
A short guide to setting up an NTS-secured NTP client/server with NTPsec.
- IETF BCP 223: Network Time Protocol Best Current Practices