IPInterfaceProperties.DnsAddresses Proprietà

Definizione

Spazio dei nomi:

System.Net.NetworkInformation

Assembly:

System.Net.NetworkInformation.dll

Ottiene gli indirizzi dei server DNS (Domain Name System) per questa interfaccia.

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

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

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

Public MustOverride ReadOnly Property DnsAddresses As IPAddressCollection

Valore della proprietà

IPAddressCollection

IPAddressCollection che contiene gli indirizzi di server DNS.

Attributi

UnsupportedOSPlatformAttribute

Esempio

Nell'esempio di codice seguente vengono visualizzati gli indirizzi DNS per le interfacce di rete nel computer locale.

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

Commenti

DNS è un sistema di denominazione gerarchico usato per eseguire il mapping dei nomi host agli indirizzi IP.