As an acronym for Virtual Private Server, VPS is a type of hosting many businesses and digital publishers move on to after outgrowing their shared hosting plans. It is also referred to as a virtual dedicated server, or VDS Hosting. VPS hosting offer increased control and provide you with the ability to perform more advanced functions with your website. Unlike shared hosting, VPS server space is split up into self-contained units.
The choice you have to make between managed and unmanaged VPS hosting depends on several factors. Your skill in handling the server is an important factor. The efficiency in dealing with the complicated aspects of server hosting is necessary when you lack a manager to administrate the VPS hosting server. The strength of your business in terms of the profit is another important aspect. Considering all these factors, it is always advisable to seek higher opinion in your choice of a web hosting server.
You can create a VPC where instances in one subnet, such as web servers, communicate with the Internet while instances in another subnet, such as application servers, communicate with databases on your corporate network. An IPsec VPN connection between your VPC and your corporate network helps secure all communication between the application servers in the cloud and databases in your data center. Web servers and application servers in your VPC can leverage Amazon EC2 elasticity and Auto Scaling features to grow and shrink as needed. You can create a VPC to support this use case by selecting "VPC with Public and Private Subnets and Hardware VPN Access" in the Amazon VPC console wizard.
Unmetered hosting is generally offered with no limit on the amount of data-transferred on a fixed bandwidth line. Usually, unmetered hosting is offered with 10 Mbit/s, 100 Mbit/s or 1000 Mbit/s (with some as high as 10Gbit/s). This means that the customer is theoretically able to use ~3 TB on 10 Mbit/s or up to ~300 TB on a 1000 Mbit/s line per month, although in practice the values will be significantly less. In a virtual private server, this will be shared bandwidth and a fair usage policy should be involved. Unlimited hosting is also commonly marketed but generally limited by acceptable usage policies and terms of service. Offers of unlimited disk space and bandwidth are always false due to cost, carrier capacities and technological boundaries.