Ntpd-rs

Ntpd-rs is a network time protocol implementation in Rust with NTS (Network Time Security) protocol support. It is used to synchronize time and date information through a network and set the clock of your system automatically when your computer is connected to the internet.

Setup

For a minimal setup of ntpd-rs with five European NTS servers, add following config to your system.

services.ntpd-rs = {
  enable = true;
  useNetworkingTimeServers = false;
  settings.source = [
    {
      mode = "nts";
      address = "ptbtime1.ptb.de";
    }
    {
      mode = "nts";
      address = "ntp3.fau.de";
    }
    {
      mode = "nts";
      address = "nts.netnod.se";
    }
    {
      mode = "nts";
      address = "ntppool1.time.nl";
    }
    {
      mode = "nts";
      address = "nts1.ntp.hr";
    }
  ];
};

An unofficial curated list of NTS servers can be found on public-ntp-servers GitHub repository.

See also

• NTP page, detailing the classical setup of network time synchronization on NIxOS.