Web Hosting Glossary

  • Wednesday 7th October 2015
  • Posted in Hosting
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Here is a comprehensive Glossary of Web Hosting :

Load Balancing: Distributing data across a network of servers in order to ensure that a single Web server does not get overloaded with work, thereby affecting performance.

Managed Backup: Refers to the copying of data for the purpose of having an additional copy of an original source, specifically storing data on separate tape media not located on the server. If the original data is damaged or lost, the data may be copied back from that source.

Name Server: A server responsible for translating domain names and IP addresses.

NOC: Short for Network Operations Center, a hosting company’s “home base,” so to speak. The NOC is usually where most administration, technical support and physical server storage takes place.

Packet switching: The method by which most data is exchanged throughout the Internet. Most data is broken down in to smaller “packets” prior to transfer, and then reassembled at the destination.

RAID: Short for Redundant Array of Independent Disks, a method of data protection/backup. Data is stored over a number of servers so that information will still be accessible if a piece of hardware/software crashes.

SAN: Short for Storage Area Network, a network designed to attach computer storage devices such as disk array controllers and tape libraries to servers. In a storage network, a server issues a request for specific blocks, or data segments, from specific disk drives. This method is known as block storage. The device acts in a similar fashion to an internal drive, accessing the specified block, and sending the response across the network.

Scalability: The ability of a piece of software or hardware to expand/grow as necessary.

Service Level Agreement (SLA): A formal written agreement made between two parties: the service provider and the service recipient. The SLA itself defines the basis of understanding between the two parties for delivery of the service itself. The document can be quite complex, and sometimes underpins a formal contract. Generally, an SLA should contain clauses that define a specified level of service, support options, incentive awards for service levels exceeded and/or penalty provisions for services not provided.

SQL: Short for Standard Query Language. A standard protocol used to request information from databases. Servers that can handle SQL are known as SQL servers.

SSL: Short for Secure Sockets Layer, a protocol developed by Netscape to handle and protect confidential/sensitive information required for e-commerce transactions (like credit card numbers). SSL addresses usually begin with ‘https’.

VPN: Short for Virtual Private Network, a private communications network usually used within a company, or by several different companies, to communicate over a public network.

Web Hosting: Web hosting is a service that allows users to post web pages to the Internet. A Web host, or hosting service provider (HSP), is a business that provides the technologies and services needed for Web sites to be viewed on the Web.

XML: Short for Extensible Markup Language. XML is a language allowing developers to create their own markup tags. All XML tags are defined by the programmer, and can be interpreted differently in different applications. For example, the “” tag in HTML means Italics, but could mean anything in XML, depending on the function the developer assigns to it.

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