Yahoo India Website Hosting
Yahoo India Website Hosting
A web hosting service is a kind of internet hosting service that permits people and companies to make their website accessible via the world wide web. Web hosts are companies that supply space on a server owned or leased for use by clients, as well as providing internet connectivity, usually in a data center. Website hosts can also offer data center space and connectivity to the internet for other servers located in their data center, called colocation, also known as Housing in Latin America or France.
History
Until 1991, the internet was limited to use only "...for research and education in the sciences and engineering..." and was used for email, telnet, FTP and USENET traffic, but only a tiny number of website pages. The world wide web protocols had only just been created and not until the end of 1993 would there be a graphical web browser for Mac or Windows computers. Even after there was some opening up of internet availability, the situation was challenging until 1995.
To host a website on the internet, an individual or business would need their own computer system or server. As not all organizations had the money or capability to do this, web site hosting services started to provide services to host users' websites on their own servers, without the client needing to configure the necessary infrastructure neededd to run the web site. The owners of the sites, also referred to as webmasters, would be able to develop a site that would be hosted on the website hosting service's server and published to the web by the website hosting service.
As the number of users on the internet grew, the demand for organizations, both large and small, to have an online presence increased. By 1995, companies such as GeoCities, Angelfire and Tripod were offering free hosting.
Classification
Smaller Hosting Services
The simplest is awebsite page and small-scale file hosting, where files can be uploaded via File Transfer Protocol (FTP) or a web interface. The files are sometimes delivered to the web "as is" or with minimal processing. A lot of internet service providers (ISPs) offer this service at no charge to users. People and organizations may also acquire website page hosting from other service providers.
Free web hosting service is offered by various organizations with limited services, sometimes supported by adds, and at times limited when compared to paid hosting.
Single page hosting is at times sufficient for personal website pages. Personal web site hosting is typically free, advertisement-sponsored, or inexpensive. Business web site hosting generally has a greater expense depending upon the size and type of the site.
Larger Hosting Services
Many big companies that are not internet service providers need to be permanently connected to the web in order to send email, files, etc. to other sites. The organization may use the computer as a website host to supply details of their goods and services and facilities for online orders.
A complicated website will have a more expanded package that offers database support and application development platforms (e.g. ASP.NET, ColdFusion, Java EE, Perl/Plack, PHP or Ruby on Rails). These facilities allow clients to create or install scripts for applications like forums and content management. Also, Secure Sockets Layer (SSL) is typically used for sites that wish to keep the data transmitted safe.
Types of Hosting
Internet hosting services can manage web servers. The scope of website hosting services varies a lot.
Shared Website Hosting Service
One's site is placed on the same server as many other sites, ranging from a few sites to hundreds of sites. Typically, all domains may share a common pool of server resources, such as RAM and the CPU. The features that are available with this kind of service can be fairly basic and not flexible in terms of software and updates. Resellers often make available shared website hosting and website organizations sometimes have reseller accounts to supply hosting for clients.
Reseller Website Hosting
Reseller web hosting permits clients to take on the role of website hosts themselves. Resellers can function, for individual domains, under any combination of these listed types of hosting, depending on who they are working with as a reseller. Resellers' accounts may differentiate a lot in size: they may have their own virtual dedicated server to a colocated server. Many resellers provide a nearly identical service to their provider's shared hosting plan and supply the technical support themselves.
Virtual Dedicated Server
Also known as a Virtual Private Server (VPS), it separates server resources into virtual servers, where resources can be allocated in a way that does not directly reflect the underlying hardware. VPS will at times be allocated resources based on a one server to many VPSs relationship, however, virtualization may be wanted for different reasons, which includes the possibility to move a VPS container from one server to another. Users may have root access to their own virtual space. Clients are sometimes responsible for patching and maintaining the server (unmanaged server) or the VPS provider may offer server administration tasks for the customer (managed server).
Dedicated Hosting Service
The customer gets their own website server and gets absolute control over it (user has root access for Linux/administrator access for Windows); but, the client typically doesn't own the server. One kind of dedicated hosting is self-managed or unmanaged. This is sometimes the least expensive for dedicated plans. The customer has full admin access to the server, which means the customer is responsible for the security and maintenance of their own dedicated server.
Managed Hosting Service
The customer gets his or her own web server but they are not allowed complete control over the server (the user is not given root access for Linux/administrator access for Windows); however, they may manage their data via FTP or other remote management tools. The user is not given full control so that the provider can guarantee the quality of service by not granting the user to modify the server or possibly create configuration problems. The client usually does not own the server. The server is leased to the client.
Colocation Website Hosting Service
Almost the same as the dedicated website hosting service, but the client owns the colocation server; the hosting company offers physical space that the computer takes up and manages the server. This is the strongest and costly type of web hosting service. In most cases, the colocation provider may supply little to no assistance directly for their user's server, providing just the electrical, internet access, and storage facilities for the server. In most cases for colocation, the user would have their own administrator visit the data center on-site to do any hardware upgrades or changes. Formerly, a number of colocation providers would allow any server configuration for hosting, even ones housed in desktop-style minitower cases, but most hosting companies now expect rack mount enclosures and standard system configurations.
Cloud Hosting
This is a modern kind of hosting platform that allows users strong, scalable and reliable hosting based on clustered load-balanced servers and utility billing. A cloud-hosted site might be more stable than others since other servers in the cloud can take over when an individual piece of hardware fails. Furthermore, local power failures or even natural disasters are less problematic for cloud hosted websites, as cloud hosting is not centralized. Cloud hosting also allows providers to invoice users just for resources consumed by the client, instead of a flat rate for the amount the client guesses they will use, or a fixed amount upfront hardware investment. Alternatively, the lack of centralization might give clients less control on where their information is located, which could be a problem for users with data security or privacy worries.
Clustered Hosting
Having a number of servers host the same content for stable resource utilization. Clustered servers are a amazing solution for high-availability dedicated hosting, or customizing a scalable website hosting solution. A cluster may separate web serving from database hosting capability. (Sometimes website hosts use clustered hosting for their shared hosting plans, as there are a lot of benefits to the mass managing of users).
Grid Hosting
This form of distributed hosting is when a server cluster performs like a grid and is composed of multiple nodes.
Home Server
Generally, an individual machine situated in a private home can be used to host one or multiple web sites from a typically consumer-grade broadband connection. These can be purpose-built computers or more commonly older PCs. Some internet service providers purposefully try to block residential servers by stopping incoming requests to TCP port 80 of the user's connection and by refusing to offer static IP addresses. A wonderful method to get a reliable DNS hostname is by obtaining an account with a dynamic DNS service. A dynamic DNS service will automatically change the IP address that a URL points to when the IP address changes.
Some specific kinds of hosting provided by website host service providers:
- File hosting service: hosts files, not web pages
- Image hosting service
- Video hosting service
- Blog hosting service
- Paste bin
- Shopping cart software
- Email hosting service
Host Management
The host could also offer an interface or control panel for managing the web server and installing scripts, as well as other modules and service applications like email. A website server that doesn't use a control panel for managing the hosting account, is at times referred to as a "headless" server. Some hosts specialize in certain software or services (e.g. e-commerce, blogs, etc.).
Reliability and Uptime
The availability of a site is measured by the percentage of a year in which the website is publicly available and reachable via the internet. This differs from measuring the uptime of a system. Uptime refers to the system itself being online. Uptime does not take into account being able to reach it as in the event of a network outage. A hosting provider's Service Level Agreement (SLA) may include a certain amount of scheduled downtime each year in order to perform maintenance on the computers. The scheduled downtime is often not included in the SLA timeframe and needs to be subtracted from the Total Time when availability is calculated. Depending on the wording of an SLA, if the availability of a system drops below that in the signed SLA, a hosting provider at times will offer a partial refund for time lost. How downtime is determined varies from provider to provider, therefore going through the SLA is imperative. Not all providers publicly display uptime information. A number of hosting providers will guarantee at least 99.9% uptime which will allow for 43 minutes of downtime every month, or 8 hours and 45 minutes of downtime per year.
Obtaining Hosting
Website hosting is sometimes supplied as part of a complete internet access plan from internet service providers. There are also a number of free and paid providers offering website hosting.
A customer needs to evaluate the requirements of the application to choose what kind of hosting to use. Such considerations include database server software, scripting software, and operating system. Many hosting providers supply Linux-based web hosting which offers a wide range of different software. A usual configuration for a Linux server is the LAMP platform: Linux, Apache, MySQL, and PHP/Perl/Python. The web hosting customer might want to have other services, such as email for their business domain, databases or multimedia services. A client might also prefer Windows as the hosting platform. The user still can choose from Perl, PHP, Python, and Ruby, but the customer may also use ASP.NET or ASP Classic. Web hosting packages at times include a web content management system, so the end-user doesn't have to worry about the more technical items.
Security
Because web hosting services host websites which belong to their customers, internet security is a vital worry. When a customer agrees to use a web hosting service, they are giving up control of the security of their site to the provider that is hosting the website. The amount of security that a website hosting service supplies is super important to a possible customer and can be a major consideration when considering which provider a customer may choose.
Web hosting server can be targeted by malicious people in different ways, including uploading malware or malicious code onto a hosted website. These attacks {may|might| be done for different reasons, such as stealing credit card data, launching a Distributed Denial of Service Attack (DDoS) or spamming.