IPInterfaceProperties.DnsAddresses Property

Reference

Definition

Namespace:: System.Net.NetworkInformation

Assembly:: System.Net.NetworkInformation.dll

Assembly:: System.dll

Assembly:: netstandard.dll

Important

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Gets the addresses of Domain Name System (DNS) servers for this interface.

public:
 abstract property System::Net::NetworkInformation::IPAddressCollection ^ DnsAddresses { System::Net::NetworkInformation::IPAddressCollection ^ get(); };

public abstract System.Net.NetworkInformation.IPAddressCollection DnsAddresses { get; }

[System.Runtime.Versioning.UnsupportedOSPlatform("android")]
public abstract System.Net.NetworkInformation.IPAddressCollection DnsAddresses { get; }

member this.DnsAddresses : System.Net.NetworkInformation.IPAddressCollection

[<System.Runtime.Versioning.UnsupportedOSPlatform("android")>]
member this.DnsAddresses : System.Net.NetworkInformation.IPAddressCollection

Public MustOverride ReadOnly Property DnsAddresses As IPAddressCollection

Property Value

IPAddressCollection

A IPAddressCollection that contains the DNS server addresses.

Attributes: UnsupportedOSPlatformAttribute

Examples

The following code example displays the DNS addresses for the network interfaces on the local computer.

void DisplayDnsAddresses()
{
   array<NetworkInterface^>^adapters = NetworkInterface::GetAllNetworkInterfaces();
   System::Collections::IEnumerator^ myEnum11 = adapters->GetEnumerator();
   while ( myEnum11->MoveNext() )
   {
      NetworkInterface ^ adapter = safe_cast<NetworkInterface ^>(myEnum11->Current);
      IPInterfaceProperties ^ adapterProperties = adapter->GetIPProperties();
      IPAddressCollection ^ dnsServers = adapterProperties->DnsAddresses;
      if ( dnsServers->Count > 0 )
      {
         Console::WriteLine( adapter->Description );
         System::Collections::IEnumerator^ myEnum12 = dnsServers->GetEnumerator();
         while ( myEnum12->MoveNext() )
         {
            IPAddress ^ dns = safe_cast<IPAddress ^>(myEnum12->Current);
            Console::WriteLine( "  DNS Servers ............................. : {0}", 
               dns->ToString());
         }
      }
   }
}

public static void DisplayDnsAddresses()
{
    NetworkInterface[] adapters  = NetworkInterface.GetAllNetworkInterfaces();
    foreach (NetworkInterface adapter in adapters)
    {

        IPInterfaceProperties adapterProperties = adapter.GetIPProperties();
        IPAddressCollection dnsServers = adapterProperties.DnsAddresses;
        if (dnsServers.Count > 0)
        {
            Console.WriteLine(adapter.Description);
            foreach (IPAddress dns in dnsServers)
            {
                Console.WriteLine("  DNS Servers ............................. : {0}",
                    dns.ToString());
            }
            Console.WriteLine();
        }
    }
}

Public Shared Sub DisplayDnsAddresses() 
    Dim adapters As NetworkInterface() = NetworkInterface.GetAllNetworkInterfaces()
    Dim adapter As NetworkInterface
    For Each adapter In  adapters
        
        Dim adapterProperties As IPInterfaceProperties = adapter.GetIPProperties()
        Dim dnsServers As IPAddressCollection = adapterProperties.DnsAddresses
        If dnsServers.Count > 0 Then
            Console.WriteLine(adapter.Description)
            Dim dns As IPAddress
            For Each dns In  dnsServers
                Console.WriteLine("  DNS Servers ............................. : {0}",dns.ToString() )
            Next dns
        End If
    Next adapter

End Sub

Remarks

DNS is a hierarchical naming system used to map host names to IP addresses.

Applies to