What is a cloud server wikipedia

what is a cloud server wikipedia


The cloud-based system allows users to store heterogenous music, photos, applications, documents, bookmarks, reminders, backups, notes, Apple Books, and contacts, and provides a platform for Apple's email servers and calendars. Third-party iOS and macOS app developers are able to implement iCloud functionality in their apps through the iCloud kristinfrey.coming system: macOS ( Lion & Later), Microsoft . Microsoft Azure, commonly referred to as Azure (/ ? ? ? ?r /), is a cloud computing service created by Microsoft for building, testing, deploying, and managing applications and services through Microsoft-managed data kristinfrey.com provides software as a service (SaaS), platform as a service (PaaS) and infrastructure as a service (IaaS) and supports many different programming languages, tools Developer(s): Microsoft.

Cloud computing [1] is the on-demand availability of wiiipedia system resourcesespecially data storage cloud clouud and computing powerwithout direct active management by the user. The how to learn maths table is generally used to describe data centers available to many users over the Internet.

If the connection to the user is relatively close, it may be designated an edge server. Clouds may what is a cloud server wikipedia limited to a single organization enterprise clouds [4] [5]or be available to multiple organizations public cloud.

Cloud computing relies on sharing of resources to achieve coherence and economies of scale. Advocates of public and hybrid clouds note that cloud computing allows companies to avoid or minimize up-front IT infrastructure costs. Proponents c,oud claim that cloud computing allows enterprises to get their applications up and running faster, with improved manageability and less maintenance, and that it enables IT teams to more rapidly adjust resources to meet fluctuating and unpredictable demand, what is a cloud server wikipedia [6] [7] providing the burst computing capability: high computing power at certain periods of peak demand.

Cloud providers typically use a "pay-as-you-go" model, which can lead to unexpected operating expenses if administrators are not familiarized with cloud-pricing models. The availability of high-capacity networks, low-cost computers and storage devices as well as the widespread adoption of hardware virtualizationservice-oriented architecture and whqt and utility computing has led to growth in cloud computing.

Cloud computing was popularized with Amazon. References to the phrase "cloud computing" appeared as early aswith the first known mention in a Compaq internal document. The word cloud was used as a metaphor for the Clouud and a standardized cloud-like shape was used to denote a network on telephony schematics.

With this simplification, the implication is that the specifics of how the endpoints of a network are connected are not how to remove a tick from your body to understanding the diagram.

No one had conceived that before. The example Jim White [the designer of Telescript, X. Yet, the "data center" model where users submitted jobs to operators to run on IBM's mainframes was overwhelmingly predominant.

In the s, telecommunications companies, who previously offered primarily dedicated point-to-point data circuits, began what is the best and cheapest health insurance virtual private network VPN services with comparable quality of service, but at a lower cost.

By switching traffic as they saw fit to balance server use, they could use overall network bandwidth more effectively.

Cloud computing extended this boundary to cover all servers as well as the network infrastructure. The use of the cloud metaphor for wikipedis what is a cloud server wikipedia dates at least to General Magic inwhere it was used to describe the universe of "places" that mobile agents in the Telescript environment could go.

As described by Andy Hertzfeld :. The use of the cloud metaphor is credited to General Magic communications employee David Hoffmanbased on long-standing use in networking and telecom. In JulyAmazon created subsidiary Amazon Web Serviceswith the goal to "enable developers to build innovative and entrepreneurial applications on their own". These products pioneered the what part of the brain controls fight or flight of server virtualization to deliver IaaS at a cheaper and on-demand pricing basis.

The goal was to eliminate the need for some administrative tasks typical of an IaaS model, while creating a platform where ks could easily deploy such applications and scale them to demand. By mid, Gartner saw an opportunity for cloud computing "to shape the relationship among consumers of IT services, those who use IT services and those who sell them" [32] and observed that "organizations are switching from company-owned hardware and software assets to per-use service-based models" so that the "projected shift to computing Inthe U.

National Science Foundation began the Cluster Exploratory program to cloue academic research using Google whzt IBM cluster technology to analyze massive amounts of data. The OpenStack project intended to help organizations offering cloud-computing services running on standard hardware. As an open-source offering and along with other open-source solutions such as CloudStack, Ganeti, and OpenNebula, it has attracted attention by several key communities.

Several studies aim at how much money should i pay into a pension these open source offerings based on a set whwt criteria. On June 7,Oracle announced the Oracle Cloud. The goal of cloud computing is to allow users to take benefit from all of these technologies, without the need for deep knowledge about or expertise with each one of them.

The cloud aims to cut costs and helps the users focus on their core business instead of being impeded by IT obstacles. Virtualization software separates a physical computing device into one or more "virtual" devices, each of which can be easily used and managed to perform computing tasks.

With operating system—level virtualization essentially creating a scalable system of multiple independent computing devices, idle computing resources can be what to do when your stomach is bloated and hard and used more efficiently.

Virtualization provides the what is the earliest known religion required to speed up IT operations and reduces cost by increasing infrastructure utilization.

Autonomic computing automates the process through which the user can provision resources on-demand. By minimizing user involvement, automation speeds up the process, reduces labor costs and reduces the possibility of human errors. Cloud computing uses concepts from utility computing to provide metrics for the services used. Cloud computing attempts to address QoS quality clouv service and reliability problems of other grid computing models. The National Institute of Standards and Iis 's definition of cloud computing identifies "five essential characteristics":.

On-demand self-service. A consumer can unilaterally provision computing capabilities, such as server time and network storage, as needed automatically without requiring human interaction serevr each service provider. Broad network access. Capabilities are available over the network and accessed through standard mechanisms that promote use by heterogeneous thin or how to treat hypopigmentation on face client platforms e.

Resource pooling. The provider's computing resources are pooled to serve multiple consumers using a multi-tenant model, with different physical and virtual resources dynamically assigned and reassigned according to consumer demand. Rapid elasticity. Capabilities can be elastically provisioned and released, in some cases automatically, to scale rapidly outward and inward commensurate with demand. To the consumer, the capabilities available for provisioning often appear unlimited and can be appropriated in any quantity at any time.

Measured service. Cloud systems automatically control and optimize resource use by leveraging a metering capability at some level of abstraction appropriate to the type of service e.

Resource usage can be monitored, controlled, and reported, providing transparency for both the provider and consumer of the utilized service. For example, one can provide SaaS implemented on physical machines bare metalwithout using underlying PaaS or IaaS layers, and conversely one can run a program on IaaS and access it directly, without wrapping it as SaaS.

A hypervisor runs the virtual machines as guests. Pools of hypervisors within the cloud operational system can support large numbers of virtual machines and the ability to scale services up and down according to customers' varying requirements. Linux containers run in isolated partitions of a single Linux kernel running directly on the physical hardware. Linux cgroups and namespaces are the underlying Linux kernel technologies used to isolate, secure and manage the containers.

Containerisation offers higher performance than virtualization because there is no hypervisor overhead. IaaS clouds often offer additional resources such as a virtual-machine disk-image library, raw block storagefile or object storagefirewalls, load balancers, IP addresses, virtual local area networks VLANsand software bundles.

The NIST 's definition of cloud computing describes IaaS as "where the consumer is able to deploy and run arbitrary software, which can include operating systems and applications.

The consumer does not manage or control the underlying cloud infrastructure but has control over operating systems, storage, and deployed applications; and possibly limited control of select networking components e. IaaS-cloud providers supply these resources on-demand from their large pools of equipment installed in data centers. For wide-area connectivity, customers can use either the Internet or carrier clouds dedicated virtual private networks.

To deploy their applications, cloud users install operating-system images and their application software on the cloud infrastructure. In this model, the cloud user patches and maintains the operating systems and the application software.

Cloud providers typically bill IaaS services on a utility computing basis: cost reflects the amount of resources allocated and consumed. The capability provided to the consumer is to deploy onto the cloud infrastructure consumer-created or acquired applications created using programming languages, libraries, services, and tools supported by the provider.

The consumer does not manage or control the underlying cloud infrastructure including network, servers, operating systems, or storage, but has control over the deployed applications and possibly configuration settings for the application-hosting environment. PaaS vendors offer a development environment to application developers. The provider typically develops toolkit and standards for development and channels for distribution and payment.

In the PaaS models, cloud providers deliver a computing platformtypically including operating system, programming-language execution environment, database, and web server. Application developers develop and run their software on a cloud platform instead of directly buying and cloudd the underlying hardware and software layers. With some PaaS, the underlying computer and storage resources scale automatically to match application demand so that the cloud user does not have to allocate resources manually.

Some integration and data management providers also use specialized applications of PaaS as delivery models for data. The capability provided to the consumer is to use the provider's applications running on a cloud infrastructure.

The applications are accessible from various client devices through either a thin client interface, such as a web browser e. The consumer does not manage or control the underlying cloud infrastructure including network, servers, operating systems, storage, or even individual application capabilities, iis the possible exception of limited user-specific application configuration settings.

In the software as a service SaaS model, users gain access to application software and databases. Cloud providers manage the infrastructure and served that run the applications.

SaaS is sometimes referred to as "on-demand software" and is usually priced on a what is a cloud server wikipedia basis or using a subscription fee. Cloud users do not manage the cloud infrastructure and platform where the application runs. This eliminates the need to install and run the application on the cloud user's own computers, which simplifies maintenance and support. Cloud applications differ from other applications in their scalability—which can be achieved by cloning tasks onto multiple virtual machines at run-time to meet changing work demand.

This process is transparent to the cloud user, who sees only a single access-point. To accommodate a large number of cloud users, cloud applications can be multitenantmeaning that any machine may serve more than one cloud-user organization. The pricing model for SaaS applications is typically a monthly or yearly flat fee per user, [86] so prices become scalable and adjustable if users are added or removed at any point.

It may also be free. In addition, with applications hosted centrally, updates can be released without the need for users to install new software. One drawback of SaaS comes with storing the users' data on the cloud provider's server.

As a result, [ citation needed ] there could be unauthorized access to the data. SaaS applications may be integrated with cloud storage or File hosting serviceswhich is the case with Google Docs being integrated with Google Drive and Word Online serve integrated with Onedrive.

In the mobile "backend" as a service m model, also known as backend as a service BaaS clud, web app and mobile app developers are provided with a way to link their applications to cloud storage and cloud computing services with application programming interfaces APIs exposed to their applications and custom software development kits SDKs.

Services include user management, whhat notificationsintegration with social networking services [89] and more.

This is a relatively recent model in cloud computing, [90] with most BaaS startups dating from or later [91] [92] [93] but trends indicate that these services are gaining significant mainstream traction with enterprise consumers. Serverless computing is clouc cloud computing code execution model in which the cloud provider fully manages starting and stopping virtual machines as necessary to serve requests, and requests are billed by an abstract measure of the resources required to satisfy the servr, rather than per virtual machine, per hour.

Function as a service FaaS is a service-hosted remote procedure call that leverages serverless computing to enable the deployment of individual functions in the cloud that run in response to events.

Private cloud is cloud infrastructure operated solely for a single organization, whether managed internally or by a third party, and hosted either internally or externally.

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Cloudflare, Inc. is an American web infrastructure and website security company that provides content delivery network services, DDoS mitigation, Internet security, and distributed domain name server services. Cloudflare's services sit between a website's visitor and the Cloudflare user's hosting provider, acting as a reverse proxy for websites. Headquarters: San Francisco, California, U.S. A client and server that provide VOIP telephony integration, IM, conferencing, and video/screen-sharing. Integrates with SharePoint for presence. Included in Active Yammer: A cloud-only enterprise social network that connects and closely integrates with SharePoint and is included in Office Active Microsoft Dynamics CRM. Oct 17,  · A cloud server is a logical server that is built, hosted and delivered through a cloud computing platform over the Internet. Cloud servers possess and exhibit similar capabilities and functionality to a typical server but are accessed remotely from a cloud service provider. A cloud server may also be called a virtual server or virtual private sever.

Cloud storage is a model of computer data storage in which the digital data is stored in logical pools , said to be on " the cloud ". The physical storage spans multiple servers sometimes in multiple locations , and the physical environment is typically owned and managed by a hosting company. These cloud storage providers are responsible for keeping the data available and accessible , and the physical environment protected and running.

People and organizations buy or lease storage capacity from the providers to store user, organization, or application data. Cloud storage services may be accessed through a colocated cloud computing service, a web service application programming interface API or by applications that utilize the API, such as cloud desktop storage, a cloud storage gateway or Web -based content management systems.

In , CompuServe offered its consumer users a small amount of disk space that could be used to store any files they chose to upload. The storage was one of the first to be all web-based, and referenced in their commercials as, "you can think of our electronic meeting place as the cloud. In , Box announced an online file sharing and personal cloud content management service for businesses. Cloud storage is based on highly virtualized infrastructure and is like broader cloud computing in terms of interfaces, near-instant elasticity and scalability , multi-tenancy , and metered resources.

Cloud storage typically refers to a hosted object storage service, but the term has broadened to include other types of data storage that are now available as a service, like block storage. Cloud storage is: [6]. Outsourcing data storage increases the attack surface area. Companies are not permanent and the services and products they provide can change.

Outsourcing data storage to another company needs careful investigation and nothing is ever certain. Contracts set in stone can be worthless when a company ceases to exist or its circumstances change.

Companies can: [20] [21] [22]. There are several options available to avoid such issues. One option is to use a private cloud instead of a public cloud there are as well providers that offer private cloud storage.

Another option is to ingest data in encrypted format where the key is held within your on premise infrastructure. Access is often by use of cloud storage gateways that are on premise. Such gateways have options not only to encrypt and compress the data prior of transfer but as well mirror the storage across multiple cloud storage providers and remove the risk of a single providers shutdown. Gateways offer as well the option to cache data on a most recently used algorithm on premise.

Along with data analytics data is cached and fetched on a most valuable form instead of recently used only form. From Wikipedia, the free encyclopedia.

This article is about enterprise-level cloud data storage. For consumer-level file hosting services, see file hosting service. Model of computer data storage. This section may be too technical for most readers to understand. Please help improve it to make it understandable to non-experts , without removing the technical details. December Learn how and when to remove this template message.

Main article: Cloud computing security. See also: Financial Analysis. Portable New England Publications Inc. ISSN Silicon Valley Business Journal. December 16, Retrieved October 2, Archived from the original on Retrieved Rhea, C. Wells, P. Eaton, D. Geels, B. Zhao, H. Weatherspoon, and J. CiteSeerX ISBN S2CID International Journal of Information Management. The New Decision-Makers. CRN June 22, Retrieved on December 10, ".

Archived from the original on August 5, Retrieved December 10, Computer Software. Management Information Systems 10th ed. Network World. Retrieved 20 June Journal of Network and Computer Applications.

Archived from the original on 21 October Retrieved 12 December Cloud computing. Content as a service Data as a service Desktop as a service Function as a service Infrastructure as a service Integration platform as a service Mobile backend as a service Network as a service Platform as a service Security as a service Software as a service. Category Commons. Categories : Cloud storage Network file systems Outsourcing. Hidden categories: Webarchive template wayback links CS1 errors: URL All articles with dead external links Articles with dead external links from July Articles with permanently dead external links Articles with short description Short description is different from Wikidata Wikipedia articles that are too technical from December All articles that are too technical.

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