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A DNS zone is implemented in the configuration system of a domain name server. Historically, it is defined in the zone file, an operating system text file that starts with the special DNS record type Start of Authority (SOA) and contains all records for the resources described
The URI record is expressed in a master file in the following format: _service._proto.name. TTL class URI priority weight target. where: the symbolic name of the desired service. the transport protocol of the desired service; this is usually either TCP or UDP. the domain name for which this record is valid, ending in a dot.
dig (command) dig is a network administration command-line tool for querying the Domain Name System (DNS). dig is useful for network troubleshooting and for educational purposes. [2] It can operate based on command line option and flag arguments, or in batch mode by reading requests from an operating system file.
NAPTR record. A Name Authority Pointer ( NAPTR) is a type of resource record in the Domain Name System of the Internet. [1] [2] NAPTR records are most commonly used for applications in Internet telephony, for example, in the mapping of servers and user addresses in the Session Initiation Protocol (SIP). The combination of NAPTR records with ...
Multicast DNS. In computer networking, the multicast DNS ( mDNS) protocol resolves hostnames to IP addresses within small networks that do not include a local name server. It is a zero-configuration service, using essentially the same programming interfaces, packet formats and operating semantics as unicast Domain Name System (DNS).
DNS record types could be created and used to register what port a webpage is on. For example: My webpage would have two DNS records. Record Type "A" host record, www.example.com = 127.0.0.1 Record Type "porthttp" port record, www.example.com = 80.
Records other than PTR records. Record types other than PTR records may also appear in the reverse DNS tree. For example, encryption keys may be placed there for IPsec, SSH and IKE. DNS-Based Service Discovery uses specially-named records in the reverse DNS tree to provide hints to clients about subnet-specific service discovery domains.
Microsoft DNS manager supports DNSSEC from Windows Server 2012 onwards. Some of the DNSSEC records can not be directly added but are generated during zone signing and managed as such. DNS software homogeneity. Primary reasons for DNS providers (especially root operators) to use different DNS servers is code diversity and application performance.