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DNS.NET Resolver (C#)

, 11 Mar 2013 CPOL
A full implementation of a reusable DNS resolver component and a Dig.Net example application.
Article_Demo.zip
Article_Demo
DnsDig.exe
nunit.framework.dll
article_src-noexe.zip
DnsDig
DnsDig.suo
DnsDig
bin
Debug
Article_Demo.zip
DnsDig.vshost.exe.manifest
Dns
Records
NotUsed
Obsolete
Root
DnsDig.csproj.user
Doc
obj
Debug
DnsDig.AboutForm.resources
DnsDig.MainForm.resources
DnsDig.Properties.Resources.resources
Properties
Settings.settings
article_src.zip
DnsDig.suo
Article_Demo.zip
DnsDig.exe
DnsDig.pdb
DnsDig.vshost.exe
DnsDig.vshost.exe.manifest
nunit.framework.dll
Release
DnsDig.csproj.user
DesignTimeResolveAssemblyReferencesInput.cache
DnsDig.AboutForm.resources
DnsDig.csproj.GenerateResource.Cache
DnsDig.csprojResolveAssemblyReference.cache
DnsDig.exe
DnsDig.MainForm.resources
DnsDig.pdb
DnsDig.Properties.Resources.resources
TempPE
Properties.Resources.Designer.cs.dll
Settings.settings
article_src.zip.zip
DnsDig.suo
DnsDig.csproj.user
DnsExperiment.AboutForm.resources
DnsExperiment.csproj.GenerateResource.Cache
DnsExperiment.MainForm.resources
DnsExperiment.Properties.Resources.resources
Refactor
Properties.Resources.Designer.cs.dll
Settings.settings
using System;
/* http://tools.ietf.org/rfc/rfc1183.txt

 * 1. AFS Data Base location

   This section defines an extension of the DNS to locate servers both
   for AFS (AFS is a registered trademark of Transarc Corporation) and
   for the Open Software Foundation's (OSF) Distributed Computing
   Environment (DCE) authenticated naming system using HP/Apollo's NCA,
   both to be components of the OSF DCE.  The discussion assumes that
   the reader is familiar with AFS [5] and NCA [6].

   The AFS (originally the Andrew File System) system uses the DNS to
   map from a domain name to the name of an AFS cell database server.
   The DCE Naming service uses the DNS for a similar function: mapping
   from the domain name of a cell to authenticated name servers for that
   cell.  The method uses a new RR type with mnemonic AFSDB and type
   code of 18 (decimal).

   AFSDB has the following format:

   <owner> <ttl> <class> AFSDB <subtype> <hostname>

   Both RDATA fields are required in all AFSDB RRs.  The <subtype> field
   is a 16 bit integer.  The <hostname> field is a domain name of a host
   that has a server for the cell named by the owner name of the RR.

 */

namespace Heijden.DNS
{
	public class RecordAFSDB : Record
	{
		public ushort SUBTYPE;
		public string HOSTNAME;

		public RecordAFSDB(RecordReader rr)
		{
			SUBTYPE = rr.ReadUInt16();
			//HOSTNAME = rr.ReadString();
			HOSTNAME = rr.ReadDomainName();
		}

		public override string ToString()
		{
			return string.Format("{0} {1}",
				SUBTYPE,
				HOSTNAME);
		}

	}
}

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Alphons van der Heijden
Retired Van der Heijden Holding BV
Netherlands Netherlands
I'm Alphons van der Heijden, living in Lelystad, Netherlands, Europa, Earth. And currently I'm retiring from hard working ( ;- ), owning my own company. Because I'm full of energy, and a little to young to relax ...., I don't sit down, but create and recreate software solutions, that I like. Reinventing the wheel is my second nature. My interest is in the area of Internet technologies, .NET etc. I was there in 1992 when Mosaic came out, and from that point, my life changed dramatically, and so did the world, in fact. (Y)

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