What is Web Hosting ?
A web hosting service is a type of Internet hosting service that allows individuals and organizations to make their own website accessible via the World Wide Web. Web hosts are companies that provide space on a server they own or lease for use by their clients as well as providing Internet connectivity, typically in a data center.
The scope of web hosting services varies greatly. The most basic is web page and small-scale file hosting, where files can be uploaded via File Transfer Protocol (FTP) or a Web interface. The files are usually delivered to the Web "as is" or with little processing. Many Internet service providers (ISPs) offer this service free to their subscribers. People can also obtain Web page hosting from other, alternative service providers. Personal web site hosting is typically free, advertisement-sponsored, or inexpensive. Business web site hosting often has a higher expense.
Types of hosting :
1. Shared web hosting service:
One's website is placed on the same server as many other sites, ranging from a few to hundreds or thousands. Typically,
all domains may share a common pool of server resources, such as RAM and the CPU. The features available with this type
of service can be quite extensive. A shared website may be hosted with a reseller.
2. Reseller web hosting:
Allows clients to become web hosts themselves. Resellers could function, for individual domains, under any combination
of these listed types of hosting, depending on who they are affiliated with as a reseller. Resellers' accounts may vary
tremendously 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 provide the technical support themselves.
3. Virtual Private Server:
Also known as a Virtual Dedicated Server (VDS), divides server resources into virtual servers, where resources can be
allocated in a way that does not directly reflect the underlying hardware. VPS will often be allocated resources based
on a one server to many VPSs relationship, however virtualisation may be done for a number of reasons, including the
ability to move a VPS container between servers. The users may have root access to their own virtual space. Customers
are sometimes responsible for patching and maintaining the server.
4. Dedicated hosting service:
The user gets his or her own Web server and gains full control over it (user has root access
for Linux/administrator access for Windows); however, the user typically does not own the server. Another type of
Dedicated hosting is Self-Managed or Unmanaged. This is usually the least expensive for Dedicated plans. The user has full
administrative access to the server, which means the client is responsible for the security and maintenance of his own
dedicated server.
5. Managed hosting service:
The user gets his or her own Web server but is not allowed full control over it (user is denied
root access for Linux/administrator access for Windows); however, they are allowed to manage their data via FTP or other
remote management tools. The user is disallowed full control so that the provider can guarantee quality of service by not
allowing the user to modify the server or potentially create configuration problems. The user typically does not own the
server. The server is leased to the client.
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