About VPN

OpenVPN is a free and open source software application that implements virtual private network (VPN) solutions for creating secure point-to-point or site-to-site connections in routed or bridged configurations and remote access facilities. It uses SSL/TLS security for encryption and is capable of traversing network address translators (NATs) and firewalls. It was written by James Yonan and is published under the GNU General Public License (GPL).
OpenVPN allows peers to authenticate each other using a pre-shared secret key, certificates, or username/password. When used in a multiclient-server configuration, it allows the server to release an authentication certificate for every client, using signature and Certificate authority. It uses the OpenSSL encryption library extensively, as well as the SSLv3/TLSv1 protocol, and contains many security and control features. It is sometimes used by computer gamers as a way of accessing LAN games over the internet.
OpenVPN uses the OpenSSL library to provide encryption of both the data and control channels. It lets OpenSSL do all the encryption and authentication work, allowing OpenVPN to use all the ciphers available in the OpenSSL package. It can also use the HMAC packet authentication feature to add an additional layer of security to the connection referred to as an “HMAC Firewall” by the creator. It can also use hardware acceleration to get better encryption performance.

VPS Provider

There are alot of VPS Providers out there with low costs, that will allow you to do what you need. You should have a look around in the offers section to see if anything is your fit, or, as gabil above stated, burst seems to be low cost in relation to VPS, but I don't know how reliable they are. I've heard mostly bad, but some good things about them.

If you are just going to mess around and learn, I don't see a problem with burst's services. Be careful though, and make sure your server is powered down when you aren't using it. Learning things often leads to un-noticed security holes that can really upset a provider (and their clients)

VPS Understanding

A VPS, or Virtual Private Server, is a logical segment of a physical machine set aside for the exclusive use of a single business or other type of entity. Although a single server can run several VPS configurations, each segment offers the same functionality that a dedicated server would provide.

What is VPS Hosting?

Most small to medium-sized businesses prefer to use web hosting services instead of maintaining a proprietary, in-house server room for most, if not all, of their computing needs. Instead of making do with outdated machines or dealing with expensive upgrades, out-sourced hosting allows both individuals and organizations to have the use of state-of-the-art equipment with 24/7 support for a mere fraction of the cost.

In the past, interested clients had two choices in the hosting realm: shared or dedicated. Shared hosting is exactly what it sounds like. Multiple clients use a single server to run a variety of applications. While this works well in theory, individual systems were often impacted when another application on the shared server used more than its fair share of bandwidth, storage space, or CPU cycles.

A dedicated server eliminates this problem by providing an individual server for each client. However, this option can be very expensive for anyone on a tight budget. Virtualization through VPS hosting bridges the gap between shared and dedicated hosting by providing an affordable solution to allow clients to share a physical machine without the ability to impact neighboring systems.

How Does a VPS Work?

To create a Virtual Private Server, hosting companies often use the following two methods to partition the machines:

• Hypervisor – Also known as a virtual machine manager, or VMM, the hypervisor manages, or supervises, the resources of the virtual servers to allow multiple OS installations to run on the same physical machine. Popular hypervisor virtualization solutions include VMware ESX , Microsoft Hyper-V, Xen, and KVM.
• Container – This mode is also known as operating system-level virtualization or a kernel-based system. In this method, separate containers, or user spaces, are created for each VPS. Popular container virtualization solutions include Parallels Virtuozzo and OpenVZ.

In some cases, a Virtual Private Server is called a VDS, or virtual dedicated server. However, the terms refer to the same concept where one physical machine is configured to function like multiple servers dedicated to meet each customer’s individual needs with the same level of privacy and configuration options as a true independent server.

VPS is like Your Own Server

A Virtual Private Server makes system provisioning quick and easy. When the need arises, simply let your VPS Hosting service know that you need to expand or contract the resources allocated for your system. In most cases, the adjustment can be made immediately. Some VPS Hosting providers have self-service features that allow you to make these adjustments yourself for the fastest results possible.

Resources that can be expanded or contracted on demand include:

• RAM / Memory
• CPU
• Disk Space / Hard Disk
• Bandwidth
• IP Addresses

VPS and the Cloud

Cloud hosting involves spreading resources across multiple servers at one or more remote locations. The user doesn’t know where or how the information is stored but is fully aware that the system or stored data is easily accessible at any time. Because the typical client is sharing large banks of servers with other customers, the cloud is inherently virtualized, just like a VPS.

Using a VPS now will help ease your transition to cloud hosting services in the future as this new technology matures because your logical process will already be separated from the physical hardware needs.

What is VPS(Virtual Private Server)

Virtual private server (VPS) is a term used by Internet hosting services to refer to a virtual machine. The term is used for emphasizing that the virtual machine, although running in software on the same physical computer as other customers' virtual machines, is in many respects functionally equivalent to a separate physical computer, is dedicated to the individual customer's needs, has the privacy of a separate physical computer, and can be configured to run server software.
The terms virtual root server (VRS) and virtual dedicated server (VDS) are also used as synonyms of VPS. However, the latter also occasionally indicates that the server does not use burst/shared RAM through multiple machines and may use individual CPU cores. The term Cloud Server is a close concept and designates a virtual private server, where resources allocated are guaranteed, it can usually be reconfigured anytime (upgrade or downgrade) and are paid per usage (not prepaid).interest about VPS?click here