Dns.GetHostEntry Method (IPAddress)
Resolves an IP address to an IPHostEntry instance.
Assembly: System (in System.dll)
The GetHostEntry method queries a DNS server for the IP addresses and aliases associated with an IP address.
IPv6 addresses are filtered from the results of the GetHostEntry method if the local computer does not have IPv6 installed. As a result, it is possible to get back an empty IPHostEntry instance if only IPv6 results where available for the address parameter.
This member emits trace information when you enable network tracing in your application. For more information, see Network Tracing.
Public Sub DoGetHostEntry(hostName As [String]) DIM host as IPHostEntry = Dns.GetHostEntry(hostname) Console.WriteLine("GetHostEntry(" + hostname + ") returns: ") Dim ip As IPAddress() = host.AddressList Dim index As Integer For index = 0 To ip.Length - 1 Console.WriteLine(ip(index)) Next index End Sub
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.