DNS Clients

This package provides various unicast DNS clients, stub resolvers, that communicate with a DNS server. The source code is on GitHub and the package is published on NuGet.

• DnsClient is used to send a Message to a standard DNS server and receive a response; uses UPD and then TCP (if needed). There is no privacy.

• DohClient, DNS over HTTPS (DoH), is an experimental protocol for performing remote Domain Name System (DNS) resolution via the HTTPS protocol. The goal is to increase user privacy and security by preventing eavesdropping and manipulation of DNS data by man-in-the-middle attacks.

• DotClient, DNS over TLS (DoT), is a security protocol for encrypting and wrapping DNS queries and answers via the Transport Layer Security (TLS) protocol. The goal is to increase user privacy and security by preventing eavesdropping and manipulation of DNS data via man-in-the-middle attacks.

Usage

Get all the TXT strings assoicated with "ipfs.io"

using Makaretu.Dns;

var dns = new DnsClient();
var response = await dns.QueryAsync("ipfs.io", DnsType.TXT);
var strings = response.Answers
    .OfType<TXTRecord>()
    .SelectMany(txt => txt.Strings);
foreach (var s in strings)
    Console.WriteLine(s);

Produces the output

dnslink=/ipfs/QmYNQJoKGNHTpPxCBPh9KkDpaExgd2duMa3aF6ytMpHdao