get host name from ip address in vb.net
To get the host name from IP address in VB.NET you can use Request object or System.Net class here is a function to return host name from IP address.
Get Client IP Address
Request.UserHostAddress
Get Client Host Name
Request.UserHostName
Function to get host name from IP address
Public Function Get_Host_By_Address(ByVal IP_Address As String) As String
Dim host As System.Net.IPHostEntry
Try
host = System.Net.Dns.GetHostEntry(IP_Address)
Return host.HostName
Catch ex As Exception
Return ""
End Try
End Function