Nominum Foundation Authoritative Name Server (ANS) is the most scalable authoritative name server available. It was designed for organizations who need an "always-on" DNS, host large numbers of resource records, or have to support many DNS zones. ANS is a dedicated authoritative name server that has higher performance – in query responses per second – than any other name server product. It scales to millions of names, millions of zones, supports the latest specifications for DNSSEC as well as supporting GSS-TSIG, and can be configured and managed remotely without downtime.

Nominum Foundation ANS is used where DNS scalability, availability, manageability, and performance are most critical such as Top Level Domain (TLD) and other DNS registries and registrars, DNS hosting providers, large enterprises, service providers with strict service-level obligations, and any organization that has a critical dependence on the DNS. 

 

ANS Benefits Include:

• Eliminates unwanted downtime required to update DNS data or server, view, or zone configuration
  
• Multiple view support
  
• Fast restart
  
• Tools, APIs, and protocols for remote configuration and status checks
  
• Selective logging
  
• No downtime during zone transfers or dynamic updates
  
• Low memory consumption
  
• Performance reduces vulnerability to attacks
  
• Proven in production: over 100 billion queries served
  
• Supports hundreds of millions of names and extremely stringent latency limits
  
• GSS-TSIG support