The common way a DNS server is configured to handle requests. The DNS server makes multiple requests to the various DNS servers on the Internet in order to wind up with the actual IP address of the ...

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 ...

I'm running PiHole at home for ad-blocking, and I'm using Cloudflare as the upstream server. PiHole have a description here of how to add Unbound to the system as a recursive DNS resolver, with the ...

Some domain name server (DNS) implementations are at risk for denial-of-service attacks after a vulnerability was disclosed and patched in a few popular server packages, including BIND, PowerDNS and ...

Many DNS servers are wrongly configured or running out-of-date software, leaving them vulnerable to malicious attacks, according to a survey published on Monday. The Measurement Factory, an Internet ...

Distributed denial of service (DDoS) attackers aim to either overload the CPU or clog networks with irrelevant traffic. These attackers often control large numbers of computers that are part of ...

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 ...