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Address record. Returns a 32-bit IPv4 address, most commonly used to map hostnames to an IP address of the host, but it is also used for DNSBLs, storing subnet masks in RFC 1101, etc. AAAA. 28. RFC 3596 [2] IPv6 address record. Returns a 128-bit IPv6 address, most commonly used to map hostnames to an IP address of the host.
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 ...
A DNS zone is a subset, often a single domain, of the hierarchical domain name structure of the DNS. The zone file contains mappings between domain names and IP addresses and other resources, organized in the form of text representations of resource records (RR). A zone file may be either a DNS master file, authoritatively describing a zone, or ...
As in IPv4, each host is represented in the DNS by two DNS records: an address record and a reverse mapping pointer record. For example, a host computer named derrick in zone example.com has the unique local address fdda:5cc1:23:4::1f. Its quad-A address record is derrick.example.com. IN AAAA fdda:5cc1:23:4::1f and its IPv6 pointer record is
DNS resolvers use NSEC records to verify the non-existence of a record name and type as part of DNSSEC validation. NSEC3 (next secure record version 3) Contains links to the next record name in the zone (in hashed name sorting order) and lists the record types that exist for the name covered by the hash value in the first label of the NSEC3 ...
A top-level domain ( TLD) is one of the domains at the highest level in the hierarchical Domain Name System of the Internet after the root domain. [9] The top-level domain names are installed in the root zone of the name space. For all domains in lower levels, it is the last part of the domain name, that is, the last non-empty label of a fully ...
Pages in category "DNS record types". The following 15 pages are in this category, out of 15 total. This list may not reflect recent changes . List of DNS record types.
dig, a utility that interrogates DNS servers directly for troubleshooting and system administration purposes. host is a simple utility for performing Domain Name System lookups. List of DNS record types - possible types of records stored and queried within DNS; Root name server - top-level name servers providing top level domain name resolution ...