camerondm9/dnswatcher

Watch DNS records for changes, polling according to the TTL

DnsWatcher

Watch DNS records for changes, polling according to the TTL

Usage

This library provides the QueryWatcher type, which can be used like this:

var watcher = new QueryWatcher();
watcher.Add("github.com", QueryType.A).OnChange((q, r) => {
    //Do something with the response
    foreach (var a in r.Answers.AddressRecords())
    {
        Console.WriteLine(a.ToString());
    }
});
watcher.Start();

Operation

The QueryWatcher polls the DNS server whenever the shortest TTL expires, whenever the local network configuration changes, or when you tell it to by calling the SkipDelay method.

It will raise the Change event (which you can listen on) whenever the DNS records it receives have changed from what it received last time.

Changelog

1.0.0

Initial release