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IPHostEntry.HostName Property

Gets or sets the DNS name of the host.

Namespace:  System.Net
Assembly:  System (in System.dll)

'Declaration
Public Property HostName As String

Property Value

Type: System.String
A string that contains the primary host name for the server.

The HostName property contains the primary host name for a server. If the DNS entry for the server defines additional aliases, they will be available in the Aliases property.

The following example uses the HostName property to retrieve the primary host name.

Public Sub GetIpAddressList(hostString As [String])
        Try 
            ' Get 'IPHostEntry' object which contains information like host name, IP addresses, aliases 
	    ' for specified url 
            Dim hostInfo As IPHostEntry = Dns.GetHostByName(hostString)
            Console.WriteLine(("Host name : " + hostInfo.HostName))
            Console.WriteLine("IP address List : ")
            Dim index As Integer 
            For index = 0 To hostInfo.AddressList.Length - 1
                Console.WriteLine(hostInfo.AddressList(index))
            Next index
        Catch e As SocketException
            Console.WriteLine("SocketException caught!!!")
            Console.WriteLine(("Source : " + e.Source))
            Console.WriteLine(("Message : " + e.Message))
        Catch e As ArgumentNullException
            Console.WriteLine("ArgumentNullException caught!!!")
            Console.WriteLine(("Source : " + e.Source))
            Console.WriteLine(("Message : " + e.Message))
        Catch e As Exception
            Console.WriteLine("Exception caught!!!")
            Console.WriteLine(("Source : " + e.Source))
            Console.WriteLine(("Message : " + e.Message))
        End Try 
    End Sub 'GetIpAddressList

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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