There’s a new species of Distributed Denial of Service (DDoS) attack targeting name servers, which could be called the “nonsense name” attack. It can wreak havoc on recursive and authoritative name ...

If you are a SQL programmer, learning recursive SQL techniques can be a boon to your productivity. A recursive query is one that refers to itself. I think the best way to quickly grasp the concept of ...

Celebrated author/Infoblox technologist Cricket Liu explains how to prevent DNS-based DDoS attacks -- and avoid being an unwitting accomplice to one When it comes to DNS, Cricket Liu literally wrote ...

Few recent Internet threats have made such a big impact as security researcher Dan Kaminsky's discovery, in 2008, of fundamental flaws in the Domain Name System (DNS) protocol that can be used by ...

The DNS setup as follows. The reason for the way it is setup is due to a pre-existing network segmentation by 2 PIX firewalls. There is a DNS for each PIX. <BR><BR>The DNS of the internal PIX does ...

In an effort to properly prepare our DMZ for future ecommerce transactions i've been reading some of Microsoft's documents on securing DNS. My particular question is how to handle DNS recursion in a ...