DnsClient 1.6.0 The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org. Prefix Reserved

.NET 5.0 .NET Standard 1.3 .NET Framework 4.5
Install-Package DnsClient -Version 1.6.0
dotnet add package DnsClient --version 1.6.0
<PackageReference Include="DnsClient" Version="1.6.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add DnsClient --version 1.6.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: DnsClient, 1.6.0"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install DnsClient as a Cake Addin
#addin nuget:?package=DnsClient&version=1.6.0

// Install DnsClient as a Cake Tool
#tool nuget:?package=DnsClient&version=1.6.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.


Build Status Code Coverage NuGet NuGet

DnsClient.NET is a simple yet very powerful and high performance open source library for the .NET Framework to do DNS lookups.


See the DnsClient site for more details and documentation.

The following example instantiates a new LookupClient to query some IP address.

var lookup = new LookupClient();
var result = await lookup.QueryAsync("google.com", QueryType.A);

var record = result.Answers.ARecords().FirstOrDefault();
var ip = record?.Address;



  • Sync & Async API
  • UDP and TCP lookup, configurable if TCP should be used as fallback in case the UDP result is truncated (default=true).
  • Configurable EDNS support to change the default UDP buffer size and request security relevant records
  • Caching
    • Query result cache based on provided TTL
    • Minimum TTL setting to overrule the result's TTL and always cache the responses for at least that time. (Even very low value, like a few milliseconds, do make a huge difference if used in high traffic low latency scenarios)
    • Maximum TTL to limit cache duration
    • Cache can be disabled
  • Nameserver auto discovery. If no servers are explicitly configured, DnsClient will try its best to resolve them based on your local system configuration. This includes DNS servers configured via network interfaces or even via Windows specific NRPT policies.
  • Multiple DNS endpoints can be configured. DnsClient will use them in random or sequential order (configurable), with re-tries.
  • Configurable retry of queries
  • Optional audit trail of each response and exception
  • Configurable error handling. Throwing DNS errors, like NotExistentDomain is turned off by default
  • Optional Trace/Logging

Supported resource records

  • PTR for reverse lookups
  • SRV for service discovery. LookupClient has some extensions to help with that.
  • AXFR zone transfer (as per spec, LookupClient has to be set to TCP mode only for this type. Also, the result depends on if the DNS server trusts your current connection)

Build from Source

To build and contribute to this project, you must have the latest .NET 5 SDK installed. Just clone the repository and open the solution in Visual Studio 2019.


Product Versions
.NET net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows
.NET Core netcoreapp1.0 netcoreapp1.1 netcoreapp2.0 netcoreapp2.1 netcoreapp2.2 netcoreapp3.0 netcoreapp3.1
.NET Standard netstandard1.3 netstandard1.4 netstandard1.5 netstandard1.6 netstandard2.0 netstandard2.1
.NET Framework net45 net451 net452 net46 net461 net462 net463 net47 net471 net472 net48
MonoAndroid monoandroid
MonoMac monomac
MonoTouch monotouch
Tizen tizen30 tizen40 tizen60
Universal Windows Platform uap uap10.0
Xamarin.iOS xamarinios
Xamarin.Mac xamarinmac
Xamarin.TVOS xamarintvos
Xamarin.WatchOS xamarinwatchos
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (92)

Showing the top 5 NuGet packages that depend on DnsClient:

Package Downloads

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The Official Couchbase .NET SDK.


A C# .NET (dotnet) GRPC client for etcd v3+. etcd is a distributed key value store that provides a reliable way to store data across a cluster of machines. It’s open-source and available on GitHub. etcd gracefully handles leader elections during network partitions and will tolerate machine failure, including the leader. Your applications can read and write data into etcd. A simple use-case is to store database connection details or feature flags in etcd as key value pairs. These values can be watched, allowing your app to reconfigure itself when they change. Advanced uses take advantage of the consistency guarantees to implement database leader elections or do distributed locking across a cluster of workers.


(Unofficial) Signed Core Component of the MongoDB .NET Driver. The containing assembly was generated by signing the officially published MongoDB.Driver.Core.dll.


包含一些常用的操作类,大都是静态类,加密解密,反射操作,Excel简单导出,权重随机筛选算法,分布式短id,表达式树,linq扩展,文件压缩,多线程下载和FTP客户端,硬件信息,字符串扩展方法,日期时间扩展操作,中国农历,大文件拷贝,图像裁剪,验证码,断点续传,集合扩展等常用封装。 官网教程:https://ldqk.org/55 github:https://github.com/ldqk/Masuit.Tools

GitHub repositories (36)

Showing the top 5 popular GitHub repositories that depend on DnsClient:

Repository Stars
🛠「Watt Toolkit」是一个开源跨平台的多功能 Steam 工具箱。
Thoughtfully architected, obscenely fast, thoroughly enjoyable web services for all
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.NET Driver for MongoDB
Version Downloads Last updated
1.6.0 1,059,688 1/30/2022
1.5.0 640,872 6/20/2021
1.5.0-beta-20210612.7 791 6/12/2021
1.5.0-beta-20210522.7 391 5/22/2021
1.4.0 12,506,017 2/14/2021
1.4.0-beta-20200912.4 13,972 9/12/2020
1.4.0-beta-20200801.7 35,920 8/1/2020
1.3.2 1,707,892 5/13/2020
1.3.2-beta-20200512.2 299 5/12/2020
1.3.1 19,273,882 3/31/2020
1.3.0 285,916 3/17/2020
1.3.0-beta-20200316.3 559 3/16/2020
1.3.0-beta-20200314.3 413 3/14/2020
1.3.0-beta-20200311.4 1,008 3/11/2020
1.2.0 23,589,880 8/15/2018
1.1.1 269,045 6/13/2018
1.1.0 13,056 6/4/2018
1.0.7 12,995,846 5/1/2017
1.0.6 15,843 4/5/2017
1.0.5 8,294 3/3/2017
1.0.4 1,122 2/23/2017
1.0.3 3,329 1/21/2017
1.0.2 1,069 1/16/2017
1.0.2-beta-1080 899 1/10/2017
1.0.1 39,232 12/31/2016
1.0.1-beta-1033 897 12/31/2016
1.0.1-beta-1030 910 12/31/2016
1.0.0 1,683 12/29/2016
1.0.0-beta-1017 1,041 12/7/2016
1.0.0-beta-1014 1,035 11/27/2016
1.0.0-beta-1011 933 11/24/2016
1.0.0-beta-1005 1,031 11/22/2016