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NTPServer

An NTP server that responds to NTP time queries. Supports NTPv3 and NTPv4.

Features

  • NTPv3 and NTPv4: Mirrors the version sent by the client
  • Configurable time source: Use TimeProvider for testability
  • Auto-assigned port: Use port 0 for testing to get an auto-assigned port
  • OpenTelemetry: Built-in ActivitySource tracing for NTP requests

Methods

Name
StartAsync
Dispose 
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// Start an NTP server on a random port
using var server = new NtpServer(new NtpServerOptions { Port = 0 });
await server.StartAsync();

Console.WriteLine($"NTP server listening on port {server.Port}");

Custom time source

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using var server = new NtpServer(new NtpServerOptions
{
    Port = 0,
    TimeProvider = myCustomTimeProvider,
    Stratum = 2,
});
await server.StartAsync();

Demo

you can run demo and see this feature.

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