I present a piece of ASP/VBScript code (feel free to use it if it would help you). This code can compare an IP address to a range of addresses and return TRUE if the ip in question is within the range ...

I am one of the developers of a website that lets people buy electronic phone cards. We are having real issues with people in the middle east buying multiple phone cards with a stolen phone card and ...

Let’s assume that you have a small office with ten or fifteen computers, and all the machines have different IP addresses. Or, let’s presume that you have a big office and you have more than fifty or ...

While blocking IP ranges works perfectly, blocking a website or domain is tricky. That’s because multiple IPs can be associated with the domain, and while you can prevent them, the DNS resolver can ...