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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).
Knot DNS is a free software authoritative DNS server by CZ.NIC. Knot DNS aims to be a fast, resilient DNS server usable for infrastructure (root and TLD) and DNS hosting services. Knot DNS supports DNSSEC signing and among others hosts root zone (B, K, and L root name servers), several top-level domains.
The root servers clusters have the official names a.root-servers.net to m.root-servers.net. [6] To resolve these names into addresses, a DNS resolver must first find an authoritative server for the net zone. To avoid this circular dependency, the address of at least one root server must be known for bootstrapping access to the DNS. For this ...
Returns all records of all types known to the name server. If the name server does not have any information on the name, the request will be forwarded on. The records returned may not be complete. For example, if there is both an A and an MX for a name, but the name server has only the A record cached, only the A record will be returned.
ISC operates the DNS "F" root server, [1] the first such server to be distributed using anycast. In 2007 it was announced that ISC and ICANN would sign an agreement regarding the operation of F, the first such agreement made between ICANN and a root-server operator.
A DNS name server is a server that stores the DNS records, such as address (A, AAAA) records, name server (NS) records, and mail exchanger (MX) records for a domain name (see also List of DNS record types) and responds with answers to queries against its database.
Yeti DNS Project is an attempt to build an alternative root server dedicated to IPv6. Sponsored by a Chinese state agency, the project aims at experimenting with different new DNS-related technology and enabling sovereign countries to explore and control the internet and enhance their network sovereignty. [9] [10]
Code diversity makes it less likely that a performance or security bug in one DNS server could be exploited to inflict a Denial of Service attack upon an organization. It is for this reason that NSD and Knot DNS are frequently used by root and TLD operators. DNS management software can greatly simplify publishing DNS data to varying DNS servers ...