Microsoft® Windows® 2000 Security Handbook

Security Issues with DNS

The security issues with DNS can be much more serious than the issues raised by DHCP. With DHCP, the attacker needs to physically enter your facility. DNS attacks can happen remotely and can cause disruptions in your ability to service customers, cause issues with people reaching your home page, and in some cases, even redirect your users to a bogus site. Some specific DNS attacks include the following:

• Denial of Service Attacks. A denial of service attack occurs when an attacker successfully causes your system to become unavailable to users. There are a variety of denial of service attacks that have been found to work against Microsoft operating systems, including WinNuke, SYN Flooding, and SMURF attacks. WinNuke is ...