Name server
A name server is a computer hardware or software server that implements a network service for providing responses to queries against a directory service. It translates an often humanly-meaningful, text-based identifier to a system-internal, often numeric identification or addressing component. This service is performed by the server in response to a service protocol request.
An example of a name server is the server component of the Domain Name System (DNS), one of the two principal name spaces of the Internet. The most important function of DNS servers is the translation (resolution) of human-memorable domain names and hostnames into the corresponding numeric Internet Protocol (IP) addresses, the second principal name space of the Internet which is used to identify and locate computer systems and resources on the Internet.
Domain Name System
The Internet maintains two principal namespaces: the domain name hierarchy and the IP address system. The Domain Name System maintains the domain namespace and provides translation services between these two namespaces. Internet name servers implement the Domain Name System. The top hierarchy of the Domain Name System is served by the root name servers maintained by delegation by the Internet Corporation for Assigned Names and Numbers (ICANN). Below the root, Internet resources are organized into a hierarchy of domains, administered by the respective registrars and domain name holders. A DNS name server is a server that stores the DNS records, such as address (A, AAAA) records, name server (NS) records, and mail exchanger (MX) records for a domain name (see also List of DNS record types) and responds with answers to queries against its database.
Cache
Cache or caching may refer to:
Computing
- CPU cache, a small area of fast memory used by the central processing unit
- Disk buffer, the small amount of buffer memory present on a hard drive
- Page cache, the cache of disk pages kept by the operating systems, stored in unused main memory
- Web cache, a mechanism for the temporary storage of web documents to increase performance
- DNS cache, a server in the domain name system which stores queried results for a period of time
- P2P caching, a technique used to reduce bandwidth costs for content on peer-to-peer networks
- Database caching, a mechanism used to cache database content in multi-tier applications
Cache (Aosta)
Cache (Aosta) is a frazione in the Province of Aosta in the Aosta Valley region of Italy.
Coordinates: 45°45′40″N 7°19′29″E / 45.76111°N 7.32472°E / 45.76111; 7.32472
InterSystems Caché
InterSystems Caché is a commercial object-oriented database management system from InterSystems, used to develop healthcare management and telecommunications software. Customer software can use the database with object and SQL code. Caché also allows developers to directly manipulate its underlying data structures: hierarchical arrays known as M technology.
Description
Internally, Caché stores data in multidimensional arrays capable of carrying hierarchically structured data. These are the same “global” data structures used by the MUMPS programming language, which influenced the design of Caché, and are similar to those used by MultiValue (aka PICK) systems. In most applications, however, object and/or SQL access methods are used.
Caché ObjectScript, Caché Basic or T-SQL can be used to develop application business logic. External interfaces include native object binding for C++, Java, EJB, ActiveX, and .NET. Caché supports JDBC and ODBC for relational access. XML and web services are also supported.
Domain Name System
The Domain Name System (DNS) is a hierarchical decentralized naming system for computers, services, or any resource connected to the Internet or a private network. It associates various information with domain names assigned to each of the participating entities. Most prominently, it translates more readily memorized domain names to the numerical IP addresses needed for the purpose of locating and identifying computer services and devices with the underlying network protocols. By providing a worldwide, distributed directory service, the Domain Name System is an essential component of the functionality of the Internet.
The Domain Name System deligates the responsibility of assigning domain names and mapping those names to Internet resources by designating authoritative name servers for each domain. Network administrators may delegate authority over sub-domains of their allocated name space to other name servers. This mechanism provides distributed and fault tolerant service and was designed to avoid a single large central database.
DNS (disambiguation)
DNS is the Domain Name System, a network system used to translate names into IP addresses.
DNS may also refer to:
Other uses
F5 Networks
F5 Networks, Inc. is a multinational American company which specializes in Application Delivery Networking (ADN) technology that optimizes the delivery of network-based applications and the security, performance, availability of servers, data storage devices, and other network resources. F5 is headquartered in Seattle, Washington and has development, manufacturing, and sales/marketing offices worldwide. F5 originally manufactured and sold some of the industry's first load balancing products. In 2010 and 2011, F5 Networks was on Fortune's list of 100 Fastest-Growing Companies worldwide. The company was also rated one of the top ten best-performing stocks by S&P 500 in 2010.
F5 offers products in various segments of the application delivery controller market. According to Gartner, in 2010 F5 had "a continued market-leading position" in the Application Delivery Controller (ADC) market and the Advanced Platform Application Delivery Controller market. As of June 2011, Gartner cites the most significant competitors (in terms of market share) as Cisco Systems, Citrix Systems, and Radware.
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