Wednesday, 30 April 2014

Cloud Computing-New Platform In IT

In cloud computing shared resources, software & information are provided to devices like computers & smartphones on demand over the internet. With cloud computing you don’t need to manage hardware & software, that’s the responsibility of data center. This technology uses the internet & central remote server to maintain application & data. Cloud computing based on “Pay as you go”. It means, this computing service charge you based only on the computing resources you use. 

Cloud Computing

Basically a cloud is a virtualization of resources that manages & maintains itself. In this computing users don’t need knowledge, control in the computer infrastructure. Customers rent or access the software, paying only for what they use.

Types of cloud computing
Based on deployment model, cloud can classify as:
  • Public Cloud
  • Private Cloud
  • Hybrid Cloud
  • Community Cloud
Public Cloud
In this computing model application & storage services are available over the internet for general use. Public cloud provider like Amazon web services sells services to anyone on internet. In this model, customers have no physical control over where infrastructure is located. Public cloud services may be free or offered on pay per usage model. Public cloud is shared the resources & more vulnerable than private cloud. 

Private Cloud
Private cloud is a virtualized data center or network that provides hosted services to limited people or organizations. This cloud operates within a firewall. It is not shared with others. A private cloud provides highest security & control level. There are two types of cloud infrastructure in private cloud.
  • On-Premise Private Cloud: This cloud is hosted within an organization own facility. This type of private cloud is best for applications which need total control of infrastructure & security.
  • Externally Hosted Private Cloud: This type of cloud is hosted & managed by a third party. This model is good for companies which don’t want to share physical resources due to security reasons. This cloud environment provides full privacy.

Hybrid Cloud
This cloud is a mixture of private cloud & public cloud. Public cloud is used to interact with users, while private cloud keeps the data secured. You can provide public cloud to your customers while using private cloud for internal IT infrastructure.

Community Cloud
Community cloud is a model that is shared between organizations & that is managed & secured by organizations or a third party. Community clouds can be either on-premise or off-premise. Community cloud environment is best suitable while government organizations within a state or country need to share resources.

Cloud Service Models
There are mainly 3 types of service models:
  • Software as a Service (SaaS)
  • Platform as a Service (PaaS)
  • Infrastructure as a Service (IaaS)
Software as a Service (SaaS)
This is a software distribution model in which applications are hosted by a service provider & made available to users over the internet. This model eliminates the need to install & run the application on user’s computer. In this model, users have no direct control of data. SaaS is a very wide market. Service provider hosts application & data, the user can use the service from anywhere with internet connection. Examples of Saas are: Google Apps, Salesforce.com, & Onlive.

Platform as a Service (PaaS)
This is a way to rent hardware, operating system, & network capacity over the internet. With Paas, operating system features can be changed & upgraded. In this service model, application developers can develop & run software on cloud platform without cost & complexity of buying & managing the underlying software & hardware. Examples of PaaS are: Google App Engine, Engine Yard, Force.com, & Heroku.

Infrastructure as a Service (IaaS)
In this service model, provider offers physical or virtual machines & other resources like file based storage, firewalls, load balancers, & IP addresses. Service providers provide resources on-demand from their data centers. This is pay for what you use model. Examples of IaaS are: Amazon EC2, DynDNS, HP Cloud, & Reckspace Cloud.

Advantages of Cloud Computing
  • Cloud computing is based on pay for what you use model, so cost is low.
  • Reduced software costs.
  • Instant software updates.
  • Increased data reliability.
  • Access your data at anytime from anywhere with usage of internet connection.

Disadvantages of Cloud Computing
  • Requires a constant internet connection. If you can’t connect to internet, cloud computing doesn’t work.
  • Depending on third party to sure the security of your data.

Conclusion
Today, cloud computing is the fastest growing platform in IT sector. Any type of business can use this platform to grow their business. This technology allows for more efficient computing by centralizing storage, memory, processing and bandwidth.

Monday, 21 April 2014

Managed & Unmanaged VPS Hosting

A Virtual Private Server (VPS) has become very popular among end-users and resellers. It is not only attracting small group of organizations but also large groups.  It offers the features & benefits of a dedicated server at affordable cost. A VPS is more independent than shared hosting service. It acts like a bridge between a shared hosting service & dedicated server. In this hosting, you have full root access; you can install any software or operating system according your website needs. VPS is classified into two types: Managed VPS & Unmanaged VPS.

Managed & Unmanaged VPS


Unmanaged VPS Hosting 

You need a lot of technical knowledge with applications & software to use unmanaged VPS. Hosting provider only takes care of hardware, networking and security & user is responsible for maintenance, installation of applications, website security & software. To do these stuffs, you should have high technical knowledge.
Features of unmanaged VPS hosting are:
  • Total self-management of VPS & you have remote access to your server.
  • High service performance.
  • High flexibility to implement upgrades to boost business growth.
  • Sufficient resource allocation for scalability. You can change size of disk according your needs.
  • Full root access with total data security. You have full administrative access, & anyone can’t access your information or data.

Managed VPS Hosting

This hosting option is most suitable for non-technical savvy people as well as technical savvy people. Web host used to take care of all the maintenance work, configuration & system updates that your website need.
Features of managed VPS are:
  • About zero downtime using fault tolerant mechanism & infrastructure.
  • Performance of managed VPS is very fast.
  • Monitoring system to keep you update about machine parameters & security risks.
  • Backup process is very simple.
  • 24*7*365 technical support from the hosting company.
  • In this hosting service, you can change your resources like RAM, CPU, and Disk Space easily according to your needs without downtime.
With these features, it has some drawbacks:
  •  Cost is high.
  • Customer has less control in this hosting.
With managed VPS, you don’t need to think about server; everything is looked after by hosting service provider. If you want no disturbance with VPS hosting, then you should choose a managed VPS hosting option.


Managed VPS V/S Unmanaged VPS

Cost: Cost of unmanaged VPS is less than managed VPS. So that small sized & medium sized businesses using unmanaged VPS hosting to save money.

Technical Knowledge: In managed VPS server no technical knowledge is required for running a server. Hosting company takes responsibility for all issues related to server such as the maintenance, server security & system updates. But in unmanaged VPS server, you should have good technical skills to handle your server. This is for the people who are able to manage the server technically.

Time: Larger companies are adopting managed VPS server to save a lot of time. It only takes some time to configure & install the services. But unmanaged VPS takes more hours to install & configure the services.

Privacy: Server security is very important thing for any website or business. In managed server you will get better security by hosting provider than unmanaged server.

Conclusion

VPS hosting is better than shared hosting & provides features like dedicated server. Before choosing any type of VPS hosting you should make sure about some factors like budget of your company, applications required for your website & your technical skills.  

Wednesday, 16 April 2014

Boost Your Business With VPS Hosting


VPS Hosting
In past years, when internet services started in India, only shared hosting was popular concept of hosting. In this hosting service one server is shared between many users. One server hosts multiple websites which use the same resources like processor, RAM, disk space & bandwidth. So in this hosting service each user has limit on particular services. After that web hosting service provider companies started providing dedicated server.


In dedicated hosting, you will get your own server. You have full control over the server. Dedicated server is most secure & reliable. But dedicated server hosting was very expensive;small & medium sized business can’t afford this. This hosting has some other problems such as: hardware maintenance problem, configuration problems etc.


After that, Virtual Server Hosting was born & popular very quickly among small businesses & medium businesses. This hosting provides all the features same as dedicated server but at lower cost. So this is also known as Virtual Dedicated Server. The businesses which were unable to afford dedicated hosting opted VPS hosting. VPS provides features according your website needs like performance, resources, updates & speed.


There are some features of VPS hosting which help you to understand why you should opt for this hosting service:

  • Data backup is a very serious issue. You need to make sure that your data is safe. In this hosting you get data backup feature.
  • In this service you get 99.9% uptime on entire network with high speed.
  • In VPS servers, hosted sites are totally independent & have own dedicated IP address, CPU resources, RAM, memory space & disk space.
  • You will get 24*7*365 network & hardware monitoring.
  • You will get technologies like Solid State Drive (SSD), ASP.NET, MSSQL database, control panels & compatibility with applications & software by Microsoft.

  
Benefits of VPS Hosting
There are many benefits associated with this hosting service, which can boost your business.

  • In this hosting, you have full root access to virtual machine. So you will have full control to your server. This allows you to install any software according to your website needs on your server.
  • It provides hosting of multiple websites in inexpensive ways.
  • You will get good performance & you don’t need to worry about low speed & downtime because of heavy load on website.
  • You will get excellent security, so no need to worry about security.
  • VPS hosting provides backup of data in case of any disaster.
  • You will get 24*7*365 full technical support by professionals.

  
Limitation of VPS Hosting
VPS hosting has some limitation like other hosting services, such as:

  • Limitation of resources like RAM & CPU.
  • Some software do not work due to limited resources.
  • You need to have some technical knowledge to install software & maintain the server.

  
Which Service Provider is Right for Business?
Web hosting companies used to host the websites on the server & make it available online. You must sure that you select right service provider for your business.

  • You need to check previous record of company & also check customer reviews about the company.
  • Check out the support system. You need to make sure that you will get proper technical support in future.
  • You need to check what type of services they provide & their prices. You also make sure that there are no hidden charges.
  • Check how much data transfer & uptime they promise.
  • While choosing a web host make sure that how much storage space is required to store your data.
  • Make a list of your requirements & select a company that can fulfill your website needs.

  
Conclusion 
VPS hosting provides reliability & flexibility. In this hosting you can enjoy features & functions of dedicated server with affordable price. With some benefits, it has some limitations as well, like limited resources. But this is a good medium between shared hosting & dedicated hosting.