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Data Services Internal | CNS Internal
Last revised: May 25, 2006
Technical inquiries: nsweb@berkeley.edu

Domain Name System at UC Berkeley

Domain Name System (DNS) is a collection of protocols, clients and servers, and data. DNS servers, or name servers, maintain databases that map host names to IP addresses and other information, alias names to canonical names, and IP addresses to host names. They are usually authoritative only for a small portion of the Internet name and address space but can refer queries to other name servers in other parts of the Internet. Nameservers translate human understandable names like www.berkeley.edu to network understandable IP addresses like 169.229.131.109.

Communication and Network Services maintains the campus name servers and has authority for hostnames within the Berkeley.EDU domain.

NOTICE: Beginning July 1, 2006, IST will be restricting access to the campus's caching DNS servers. The following resources contain additional information:

• Announcement and General Information
• Background and Details

For more information on specific topics see:

• DNS on Campus
• Hostmaster Services
• Subdomains and Web Servers
• DNS Policy
• UCB Networks and Product Access Control
• FAQ