"DNS cache poisoning has been around since 1993. The concept behind cache poisoning is to simply inject false information into a DNS server, where it will be cached. Then, when an unsuspecting user connects to, say, their bank's website, they are actually connecting to the IP address of an attacker. With phishing attacks on the rise, the DNS cache poisoning technique has many more uses in today's Internet. In this article we will examine how cache poisoning works, and also how to make sure your DNS servers aren't vulnerable..."