www.da-sol.org- Domain Name Registry Services
Next are third-level domains, which are written immediately to the left of a second-level domain. There can be fourth- and fifth-level domains, and so on, with virtually no limitation. An example of an operational domain name with four levels of domain labels is sos.state.oh.us. Each label is separated by a full stop (dot). 'sos' is said to be a sub-domain of 'state.oh.us', and 'state' a sub-domain of 'oh.us', etc. In general, subdomains are domains subordinate to their parent domain. An example of very deep levels of subdomain ordering are the IPv6 reverse resolution DNS zones, e.g. 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa, which is the reverse DNS resolution domain name for the IP address of a loopback interface, or the localhost name.
email: Jason@da-ip.org pierre@da-ip.org
Website: da-sol.org
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Address: MaAnShan Road 700, Hefei, Anhui, China
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Second-level (or lower-level, depending on the established parent hierarchy) domain names are often created based on the name of a comp
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Internationalized domain names[edit]
Main article: Internationalized domain name
The character set allowed in the Domain Name System is
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Domain name registration[edit]
History[edit]
The first commercial Internet domain name, in the TLD com, was registered on 15 March 1985 in
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Registries and registrars usually charge an annual fee for the service of delegating a domain name to a user and providing a default set
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ICANN publishes the complete list of TLD registries and domain name registrars. Registrant information associated with domain names is maintained in an online databa
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The Domain Name System distributes the responsibility of assigning domain names and mapping those names to IP addresses by designating authoritative name servers for each domain.
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The Domain Name System also specifies the technical functionality of this database service. It defines the DNS protocol, a detailed specification of the data structures and data c
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Some domain name registries, often called network information centers (NIC), also function as registrars to end-users. The major generic top-level domain r
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A domain name is an identification string that defines a realm of administrative autonomy, authority, or control on the Internet. Domain names are formed by the rules and procedur
Likewise in category "Electronic Components Manufacturing Equipment":