|
Wildcard DNS Record
A wildcard DNS record is a record in a DNS zone that will match requests for non-existent domain names. A wildcard DNS record is specified by using a * as the leftmost label (part) of a domain name, e.g. *.example.com. The exact rules for when a wildcard will match are specified in , but the rules are neither intuitive nor clearly specified. This has resulted in incompatible implementations and unexpected results when they are used. Definitions of DNS wildcards A wildcard DNS record in a zone file looks similar to this example: *.example.com. 3600 IN MX 10 host1.example.com. This wildcard DNS record will cause DNS lookups on domain names ending in example.com that do not exist to have MX records synthesized for them. So, a lookup for the MX record for somerandomname.example.com would return an MX record pointing to host1.example.com. Wildcards in the DNS are much more limited than other wildcard characters used in other computer systems. Wildcard DNS records have a single * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DNS Zone
A DNS zone is a specific portion of the DNS namespace in the Domain Name System (DNS), which is managed by a specific organization or administrator. A DNS zone is an administrative space that allows for more granular control of the DNS components, such as authoritative nameserver. The DNS is broken up into many different zones, which are distinctly managed areas in the DNS namespace. DNS zones are not necessarily physically separated from one another, however, a DNS zone can contain multiple subdomains and multiple zones can exist on the same server. The domain namespace of the Internet is organized into a hierarchical layout of subdomains below the DNS root domain. The individual domains of this tree may serve as delegation points for administrative authority and management. However, usually, it is furthermore desirable to implement fine-grained boundaries of delegation, so that multiple sub-levels of a domain may be managed independently. Therefore, the domain name space is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Domain Name Registrar
A domain name registrar is a company that manages the reservation of Internet domain names. A domain name registrar must be accredited by a generic top-level domain (gTLD) registry or a country code top-level domain (ccTLD) registry. A registrar operates in accordance with the guidelines of the designated domain name registries. History Until 1999, Network Solutions Inc. (NSI) operated the registries for the ''com'', ''net'', and ''org'' top-level domains (TLDs). In addition to the function of domain name registry operator, it was also the sole registrar for these domains. However, several companies had developed independent registrar services. In 1996 one such company, Ivan Pope's company, NetNames, developed the concept of a standalone commercial domain name registration service which would sell domain registration and other associated services to the public, effectively establishing the retail arm of an industry with the registries being the wholesalers. NSI assimilated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BIND
BIND () is a suite of software for interacting with the Domain Name System (DNS). Its most prominent component, named (pronounced ''name-dee'': , short for ''name daemon''), performs both of the main DNS server roles, acting as an authoritative name server for DNS zones and as a recursive resolver in the network. As of 2015, it is the most widely used domain name server software, and is the ''de facto'' standard on Unix-like operating systems. Also contained in the suite are various administration tools such as nsupdate and dig, and a DNS resolver interface library. The software was originally designed at the University of California, Berkeley (UCB) in the early 1980s. The name originates as an acronym of ''Berkeley Internet Name Domain'', reflecting the application's use within UCB. The latest version is BIND 9, first released in 2000 and still actively maintained by the Internet Systems Consortium (ISC) with new releases issued several times a year. Key features BIND 9 is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Internet Software Consortium
Internet Systems Consortium, Inc., also known as ISC, is a Delaware-registered, 501(c)(3) non-profit corporation that supports the infrastructure of the universal, self-organizing Internet by developing and maintaining core production-quality software, protocols, and operations. ISC has developed several key Internet technologies that enable the global Internet, including: BIND, ISC DHCP and Kea. Other software projects no longer in active development include OpenReg and ISC AFTR (an implementation of an IPv4/IPv6 transition protocol based on Dual-Stack Lite). ISC operates one of the 13 global authoritative DNS root servers, F-Root. Over the years a number of additional software systems were operated under ISC (for example: INN and Lynx) to better support the Internet's infrastructure. ISC also expanded their operational activities to include Internet hosting facilities for other open-source projects such as NetBSD, XFree86, kernel.org, secondary name-service (SNS) for mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Typosquatting
Typosquatting, also called URL hijacking, a sting site, or a fake URL, is a form of cybersquatting, and possibly brandjacking which relies on mistakes such as typos made by Internet users when inputting a website address into a web browser. Should a user accidentally enter an incorrect website address, they may be led to any URL (including an alternative website owned by a cybersquatter). The typosquatter's URL will usually be one of five kinds, all ''similar to'' the victim site address: *A common misspelling, or foreign language spelling, of the intended site *A misspelling based on a typographical error *A plural of a singular domain name *A different top-level domain: (i.e. .com instead of .org) *An abuse of the Country Code Top-Level Domain (ccTLD) (.cm, .co, or .om instead of .com) Similar abuses: *Combosquatting - no misspelling, but appending an arbitrary word that appears legitimate, but that anyone could register. *Doppelganger domain - omitting a period or inserting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georgian Scripts
The Georgian scripts are the three writing systems used to write the Georgian language: Asomtavruli, Nuskhuri and Mkhedruli. Although the systems differ in appearance, their letters share the same names and alphabetical order and are written horizontally from left to right. Of the three scripts, Mkhedruli, once the civilian royal script of the Kingdom of Georgia and mostly used for the royal charters, is now the standard script for modern Georgian and its related Kartvelian languages, whereas Asomtavruli and Nuskhuri are used only by the Georgian Orthodox Church, in ceremonial religious texts and iconography. Georgian scripts are unique in their appearance and their exact origin has never been established; however, in strictly structural terms, their alphabetical order largely corresponds to the Greek alphabet, with the exception of letters denoting uniquely Georgian sounds, which are grouped at the end. Originally consisting of 38 letters, Georgian is presently written in a 33 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ä¸å›½
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's List of countries and dependencies by population, most populous country, with a Population of China, population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and Borders of China, borders fourteen countries by land, the List of countries and territories by land borders, most of any country in the world, tied with Russia. Covering an area of approximately , it is the world's third List of countries and dependencies by area, largest country by total land area. The country consists of 22 provinces of China, provinces, five autonomous regions of China, autonomous regions, four direct-administered municipalities of China, municipalities, and two special administrative regions of China, Special Administrative Regions (Hong Kong and Macau). The national capital is Beijing, and the List of cities in China by population, most populous cit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Internationalized Domain Name
An internationalized domain name (IDN) is an Internet domain name that contains at least one label displayed in software applications, in whole or in part, in non-latin script or alphabet, such as Arabic, Bengali, Chinese (Mandarin, simplified or traditional), Cyrillic (including Bulgarian, Russian, Serbian and Ukrainian), Devanagari, Greek, Hebrew, Hindi, Tamil or Thai or in the Latin alphabet-based characters with diacritics or ligatures, such as French, German, Italian, Polish, Portuguese or Spanish. These writing systems are encoded by computers in multibyte Unicode. Internationalized domain names are stored in the Domain Name System (DNS) as ASCII strings using Punycode transcription. The DNS, which performs a lookup service to translate mostly user-friendly names into network addresses for locating Internet resources, is restricted in practice to the use of ASCII characters, a practical limitation that initially set the standard for acceptable domain names. The intern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Museum
A museum ( ; plural museums or, rarely, musea) is a building or institution that cares for and displays a collection of artifacts and other objects of artistic, cultural, historical, or scientific importance. Many public museums make these items available for public viewing through exhibits that may be permanent or temporary. The largest museums are located in major cities throughout the world, while thousands of local museums exist in smaller cities, towns, and rural areas. Museums have varying aims, ranging from the conservation and documentation of their collection, serving researchers and specialists, to catering to the general public. The goal of serving researchers is not only scientific, but intended to serve the general public. There are many types of museums, including art museums, natural history museums, science museums, war museums, and children's museums. According to the International Council of Museums (ICOM), there are more than 55,000 museums in 202 countrie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Site Finder
Site Finder was a wildcard DNS record for all .com and .net unregistered domain names, run by .com and .net top-level domain operator VeriSign between 15 September 2003 and 4 October 2003. Site Finder All Internet users who accessed any unregistered domains in the .com and .net domain space, were redirected to a VeriSign web portal with information about VeriSign products and links to "partner" sites. This gave VeriSign the advantage of receiving greater revenue from advertising and from users wishing to register these domain names. It had the effect of "capturing" the web traffic for several million mis-typed or experimental web accesses per day, and meant that VeriSign effectively "owned" all possible .com and .net domains that had not been bought by others, and could use them as an advertising platform. VeriSign described the change as an attempt to improve the Web browsing experience for the naive user, without mentioning any use the domain name system other than by browsers. V ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VeriSign
Verisign Inc. is an American company based in Reston, Virginia, United States that operates a diverse array of network infrastructure, including two of the Internet's thirteen root nameservers, the authoritative registry for the , , and generic top-level domains and the and country-code top-level domains, and the back-end systems for the , , and sponsored top-level domains. In 2010, Verisign sold its authentication business unit – which included Secure Sockets Layer (SSL) certificate, public key infrastructure (PKI), Verisign Trust Seal, and Verisign Identity Protection (VIP) services – to Symantec for $1.28 billion. The deal capped a multi-year effort by Verisign to narrow its focus to its core infrastructure and security business units. Symantec later sold this unit to DigiCert in 2017. On October 25, 2018, NeuStar, Inc. acquired VeriSign’s Security Service Customer Contracts. The acquisition effectively transferred Verisign Inc.’s Distributed Denial of Service ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Top-level Domain
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. 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 qualified domain name. For example, in the domain name www.example.com, the top-level domain is .com. Responsibility for management of most top-level domains is delegated to specific organizations by the ICANN, an Internet multi-stakeholder community, which operates the Internet Assigned Numbers Authority (IANA), and is in charge of maintaining the DNS root zone. History Originally, the top-level domain space was organized into three main groups: ''Countries'', ''Categories'', and ''Multiorganizations''. An additional ''temporary'' group consisted of only the initial DNS domain, arpa, and was intended for transitional purposes toward the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.svg "Click for more on -> Typosquatting")
