Nominum Foundation Caching Name Server (CNS) is the world's fastest caching name server. It was built from the ground up to deliver DNS query caching performance and high availability. It supports DNSSEC cryptographic validation, online reconfiguration, super-fast restarts, and the latest features to prevent Denial of Service (DoS) attacks. CNS handles four or more times the query traffic of a BIND server on the same commodity hardware. It speeds user response times using adaptive algorithms that discover and avoid unresponsive authoritative name servers.

Internet service providers and internet centric enterprises use CNS to dramatically reduce the cost of delivering DNS services and to improve the robustness and quality of their networks. Enterprises select CNS to create a network infrastructure resilient to attacks such as worms, viruses, and hackers using DNS as a mechanism to target mission critical applications.

Using Foundation Caching Name Server, service providers and global enterprises can strengthen their IP infrastructures and address the challenges of growing network Usage.
 
CNS Benefits Include:

• Immunity from attacks targeting BIND vulnerabilities
  
• Reduced cost of delivering DNS services
  
• Command channel for remote configuration and status checks
  
• Low-latency accelerates web applications
  
• Response validation to stop DNS-vectored attacks
  
• Performance headroom to absorb Distributed Denial of Service (DDos) attacks
  
• Online reconfiguration with no downtime
  
• Selective cache invalidation to purge invalid resource records with no downtime
  
• Cost avoidance of supporting incremental traffic and users
  
• Leading DNS security features to avoid cache poisoning
  
• Support for IPv6 and DNSSEC