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2. Name server - Wikipedia

   en.wikipedia.org/wiki/Name_server

   Caching name servers are often also recursive name servers—they perform every step necessary to answer any DNS query they receive. To do this the name server queries each authoritative name-server in turn, starting from the DNS root zone. It continues until it reaches the authoritative server for the zone that contains the queried domain name.

3. Directory service - Wikipedia

   en.wikipedia.org/wiki/Directory_service

   In computing, a directory service or name service maps the names of network resources to their respective network addresses.It is a shared information infrastructure for locating, managing, administering and organizing everyday items and network resources, which can include volumes, folders, files, printers, users, groups, devices, telephone numbers and other objects.

4. Name resolution (computer systems) - Wikipedia

   en.wikipedia.org/wiki/Name_resolution_(computer...

   This article does not cite any sources. Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed .

5. Domain Name System - Wikipedia

   en.wikipedia.org/wiki/Domain_Name_System

   A DNS name server is a server that stores the DNS records for a domain; a DNS name server responds with answers to queries against its database. The most common types of records stored in the DNS database are for start of authority ( SOA ), IP addresses ( A and AAAA ), SMTP mail exchangers (MX), name servers (NS), pointers for reverse DNS ...

6. Distributed denial-of-service attacks on root nameservers

   en.wikipedia.org/wiki/Distributed_denial-of...

   The root nameservers are critical infrastructure components of the Internet, mapping domain names to IP addresses and other resource record (RR) data. Attacks against the root nameservers could, in theory, impact operation of the entire global Domain Name System, and thus all Internet services that use the global DNS, rather than just specific ...

7. Public recursive name server - Wikipedia

   en.wikipedia.org/wiki/Public_recursive_name_server

   A public recursive name server (also called public DNS resolver) is a name server service that networked computers may use to query the Domain Name System (DNS), the decentralized Internet naming system, in place of (or in addition to) name servers operated by the local Internet service provider (ISP) to which the devices are connected.

8. Root name server - Wikipedia

   en.wikipedia.org/wiki/Root_name_server

   A root name server is a name server for the root zone of the Domain Name System (DNS) of the Internet. It directly answers requests for records in the root zone and answers other requests by returning a list of the authoritative name servers for the appropriate top-level domain (TLD).

9. Domain Name System Security Extensions - Wikipedia

   en.wikipedia.org/wiki/Domain_Name_System...

   BIND, the most popular DNS name server (which includes dig), incorporates the newer DNSSEC-bis (DS records) protocol as well as support for NSEC3 records. Unbound is a DNS name server that was written from the ground up to be designed around DNSSEC concepts. mysqlBind, the GPL DNS management software for DNS ASPs, now supports DNSSEC.