Many spammers are from country's not from your location. We have a .NET page that sits in front of our default page that when you click the forum hyperlink from the menu tests where they are coming from and shows them a message or redirects them to the forum. In the page load event:
Imports System.Net
Imports WorldDomination.Net
Dim dottedip As String = Request.UserHostAddress.ToString
Dim Dot2LongIP As Double
Dim PrevPos As Double
Dim pos As Double
Dim num As Double
For i = 1 To 4
pos = InStr(PrevPos + 1, dottedip, ".", 1)
If i = 4 Then
pos = Len(dottedip) + 1
End If
num = Int(Mid(dottedip, PrevPos + 1, pos - PrevPos - 1))
PrevPos = pos
Dot2LongIP = ((num Mod 256) * (256 ^ (4 - i))) + Dot2LongIP
Next
Dim ipAddress As IPAddress = New IPAddress(Dot2LongIP)
Dim country As String = ipAddress.Country
Dim iso3166TwoLetterCode As String = ipAddress.Iso3166TwoLetterCode
If iso3166TwoLetterCode.ToString.Trim.ToUpper = "US" Then
Response.Redirect("~/forum/default.asp")
End If
It's not perfect but it sure helps. We are based in the US and only expect US visitors. If you get people from outside the US then modify it appropriately.
Hope this helps.
Regards;
Dave
http://www.nbizmag.com
You'll need this binary:
http://ipaddressextensions.codeplex.com/Release/ProjectReleases.aspx?ReleaseId=11046
Blocking Spammers
Topic Locked
Posted - 20 April 2009 : 15:52:04
