In a new era of computing the cloud computing is very famous upcoming technology which is mostly used now days. In rapid advancement of internet and hosting technology the cloud hosting and cloud computing emerges possibility of business trends of a new web development and web hosting services and internet related services. The term cloud hosting via cloud computing is Internet-based computing technology used and website hosting ,web development and hosting services, In which shared servers provide resources, software, and data to computers and other devices on demand, as with the electricity grid and full technical support. Cloud computing is a natural evolution of the widespread adoption of virtualization, service-oriented architecture and utility computing. Details are abstracted from consumers, who no longer have need for expertise in, or control over, the technology infrastructure "in the cloud" that supports them.
It is mostly happening technology which is used by most of the organizations.Cloud computing mainly describes a new supplement, substitute, consumption, and delivery model for ultimate IT services based on the Internet which helpful for internet based web hosting services, and it typically involves all over-the-Internet provision of dynamically scalable and often virtualized resources. It is a byproduct and consequence of the ease-of-access to remote computing sites provided by the Internet. This frequently takes the form of web-based tools or applications that users can access and use through a web browser as if it was a program installed locally on their own computer. Typical cloud computing providers deliver common business applications online that are accessed from another Web service or software like a Web browser, while the software and data are stored on servers. Most cloud computing infrastructures consist of services delivered through common centers and built on servers. Clouds often appear as single points of access for consumers' computing needs.
Cloud computing Assured Redundancy:-
The cloud hosting and computing will assured redundancy .Cloud Hosting replicates web servers on not just once but many times to make sure that when any of the physical server or virtual machine suddenly goes offline, the others will not be affected. Thus, the total uptime for the entire cloud is not affected when one server goes offline. So the best way to do it is to ensure that web server can replicate your data in another machine. It is best that replication be done in more than one machine that is capable of uptime continuity.
Increased reliability and scalability with cloud computing:-
Because of the capability of cloud hosting to create multiple redundant sites, it increases reliability and lessens the possibility of outages. Cloud hosting can be trusted to keep you online when others are going offline. Another concern of industry players is scalability. We want that our website always work better and user friendly, interactive for this we will try to avoid unusual circumstance like bugs down, and crashes. This ability of a system to be enlarged to handle influx of work is called scalability.This is one very component of web hosting that cloud hosting appear to do at a lesser cost. With cloud hosting you can improve your scalability, from a one virtual machine to a group of servers.
Major disadvantage with cloud hosting: Security :-
Moving on to security provides with cloud hosting is little be confusing, if not controversial issue with cloud hosting. The industry is split between users thinking that security is risky with cloud hosting and users who believe that security is better with cloud hosting. Security concerns are mainly due to the centralization of data. Others argue that cloud hosting takes away the some control on sensitive information and it lacks security features for stored kernel. Another argument is that security is riskier when data is shared and distributed on a bigger number of devices. Pro-cloud hosting would tell you that such is not the case.