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Another common use of the term forward zone refers to a specific configuration of DNS name servers, particularly caching name servers, in which resolution of a domain name is forwarded to another name server that is authoritative for the domain in question, rather than being answered from the established cache memory. [3]
In computer networks, a reverse DNS lookup or reverse DNS resolution (rDNS) is the querying technique of the Domain Name System (DNS) to determine the domain name associated with an IP address – the reverse of the usual "forward" DNS lookup of an IP address from a domain name. [1]
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.
A wildcard MX will apply only to names in the zone which aren't listed in the DNS at all." That is, if there is a wildcard MX for *.example.com , and an A record (but no MX record) for www.example.com , the correct response (as per RFC 1034 ) to an MX request for www.example.com is "no error, but no data"; this is in contrast to the possibly ...
Forward-confirmed reverse DNS (FCrDNS), also known as full-circle reverse DNS, double-reverse DNS, or iprev, is a networking parameter configuration in which a given IP address has both forward (name-to-address) and reverse (address-to-name) Domain Name System (DNS) entries that match each other. This is the standard configuration expected by ...
A major category of DNS server functionality, see above. Recursive A major category of DNS server functionality, see above. Recursion Access Control Servers with this feature provide control over which hosts are permitted DNS recursive lookups. This is useful for load balancing and service protection. Secondary Mode (or Slave Mode)
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These servers are registered in the DNS directory as the authoritative servers for the reverse lookup zone of the 10.0.0.0 / 8, 172.16.0.0 / 12 and 192.168.0.0 / 16 addresses. These servers are configured to answer any query with a "nonexistent address" answer.