VPS Solution is offering scalability, robustness, power and control. It is more suitable for those organizations which execute customized programs.

Top server solutions provider:-

1&1, Hostpapa, Godaddy are few of the best VPS solutions providers. VPS Solution provides facility to increase and decrease amount of storage which is as per as the business requirement. Companies who are using VPS solutions monitor each and every VPS account to resolve many issues before they affect any website. They also deliver a platform that makes virtual environment effective.

Virtual server schemes:-

Virtual server is a server which shares computer resources and execute power with other virtual servers. Virtual servers have ability to share resources among each other is known as Hypervisor. There are four types of schemas:

1. Full virtualization: – Hypervisor ensures that each virtual server has its own entity and exact processing power is distributed to each virtual server.
2. Para Virtualization: – There is less dependency upon the hypervisor to monitor and allocate the proper amount of processing power.
3. Operating System (OS) Level Virtualization: – There is no need of Hypervisor with this. All virtual servers use same kind of OS. This is also called ‘homogenous virtualization environment’.
4. LDAP Virtual Directories: – These directories are used to create both Internet and Intranet related applications. This is possible only by sharing useful information. This includes data about employees, services, systems.

Time-sharing model in VPS (use of hypervisor):-

The OS basically shares access to the resources but there is a single machine which is being shared. As the resources are shared under time-sharing model, virtualization is providing a higher level of security as individual virtual servers are isolated from each other. This is important because it allows businesses to run their legal application on older versions of an operating system and can be rebooted independently. Single server is partitioned into multiple computers. The physical server runs a hypervisor which has task of creating, releasing and managing the resources of “guest” operating systems or virtual machines.

Example of VPS servers:-

OpenVZ, Virtuozzo, Xen or KVM, VMware and Hyper-Vs

Virtual private server: a deep insight:

VPS service is designed to be exclusive. Multiple customers are allowed to share the resources of one server, with high degree of security. Customers of VPS have “root” level access. It is quite powerful hosting solution which needs high server resources at lower cost. Each and every virtual server can run its own OS, and each server can be rebooted independently. VPS services are scalable and customizable as per business needs. For Linux OS VPS server is used with APACHE, MySQL, PHP. For Windows VPS server is used with ASP or ASPX pages accessing databases or SQL server database MSAccess.

Types of virtual private server:-

There are three types of VPS hosting:

1. Unmanaged VPS hosting
2. Semi managed VPS hosting
3. Managed VPS hosting

Unmanaged VPS hosting: In this, the whole server administration and the responsibilities of essential configuration and management of VPS are the responsibilities of end users. Users have to gain some knowledge in administration of Linux servers.

Semi managed VPS hosting: Virtual servers include re-installs of the OS and the control panel, adding additional IP addresses, configuring firewall rules, DNS management.

Fully managed VPS hosting: VPS support includes knowledge of everything related to the server such as assisting users with questions and try to overcome VPS related problems maintaining the virtual server’s security.

Advantages of virtual private server:-

1. VPS provides a complete control of web hosting experience.
2. It has facility of both Linux and Windows operating systems.
3. It has maximum uptime for business-critical applications.
4. It performs well with 99.95% of network availability.
5. It is flexible to install compatible software and applications.

Why virtual private servers: –

There are 5 reasons why VPS may be the solution:-

1. Growth Potential : It should be strong by ensuring that the provided site will remain available and ready for business whenever there is an opportunity.
2. Cost Control : Large businesses have a big budget so there is a need of dedicated server. If cost control is there then VPS would fit in the budget while giving great web hosting services. VPS provides the advantages of dedicated server without making hardware and maintenance costs.
3. Security : VPS provides an individual IP address and unique –to-user password protected entries. Multilayered protections built into the system makes VPS safer and secure for business hosting.
4. Support : VPS hosting package comes with support. It provides 24/7/365 support for customers whenever they needed.
5. Control : VPS provides control over content of site and applications which are running. By logging into admin, one can upload edit content, documents, run new applications and operate business anytime, anywhere.

A bridge from shared to dedicated:

VPS run on a shared piece of hardware. A multicore host is configured to provide dedicated pools of memory which are shred, single or multiple cores and hard disk storage. Some hosts provide a selection of GNU/Linux OS, some offer Windows server in one or more forms. The storage of VPS is constant. It means if virtual machine or hardware crashes or loses power, it would resume back after rebooting except hard drive failures.

VPS or cloud: similarity and differences :

Similarities: Though both are not similar but still Cloud hosting has some commonality to VPS hosting in several ways. There may be minimum or maximum server size configuration. They both are running as a virtual server in an environment. Price service is associated with the machine and the resources like CPU RAM which are guaranteed to be available.

Differences:

1. VPS is less expensive than cloud servers.
2. VPS has less server power than cloud.
3. If a physical server fails VPS can be rebooted without affecting other VPSs on shared server, while cloud servers are migrated to another physical server.

Contributors:

It is less expensive than managed hosting so if it is compatible with the server than it can be easily used. To use this hosting client must have some responsibilities regarding the server. It requires technical knowledge and time to maintain and configure the server. If UNIX knowledge of anybody is limited then this hosting cannot be used.

Technical Specification:

Unmanaged Server may be the best if technical requirement of running server has applications that are not supported by current server; user has more control over configuration. Users are only responsible for management of hardware and software both. These all conditions make unmanaged hosting more flexible.

Things to keep in concern:

1. Security : One should be concerned about that firewall locked down and there should be a strong root password.
2. Backups : User has to backup their file on regular basis in case of hard drive crashes.
3. Disaster Recovery : There should be an arrangement if host is unavailable due to an extended power outage at natural disaster.
4. Monitoring : User has to monitor if server is down in his/her absence so, there should be proper arrangement for this.
5. Patches and maintenance : One should know about new patch available for OS and apply some maintenance tasks for this.

VPS can be managed by VirtualMin web server control panel. VirtualMin has 2 types of license one is professional which user has to buy and another is GPL license which is free. Some features of virtualmin are:

1. It is based on open source web-based systems management GUI which is Webmin and is an interface for system administration, for UNIX, LINUX.
2. While using Virtualmin one can manage virtual domains, mailboxes, databases, application.

Providers of unmanaged hosting:

InMotion hosting, Acenet, HostGator, SingleHop, 1&1 are few of the best unmanaged hosting providers. They are providing Fast and Easy Setup, Full WHM/cPanel, Free Data Migration. The price ranges vary from $69 to $297 on hosting plans of different companies.

Unmanaged hosting:

Unmanaged hosting could be the right option for medium sized businesses. In this hosting, the host is responsible for the availability of the server. For unmanaged hosting one should be familiar with OS and server software which is in use. It is better alternative as anybody can self manage which includes full range control. In this hosting, with the exception of initial of OS installation, the user is responsible for upgrades, installation of software and maintenance. It provides maximum flexibility as per the users’ requirement. Users have no shared resources as it provides unlimited resources based on users’ needs.

Managed vs. unmanaged:

1. Unmanaged hosting services could be the right option for medium sized businesses while managed hosting services is the right option for large sized businesses as they save time and energy in the long run.
2. Unmanaged hosting is less expensive than managed hosting because technical support and assistance is involved in the package which makes managed services more costly.
3. In Unmanaged hosting users are responsible for every aspect of maintaining the server while in managed hosting user would ensure all the techniques of keeping servers up to date and running smoothly.

Pros and cons:

Pros:

1. In Unmanaged server, users need not to pay huge monthly bill to host the website on a high performed web server.
2. There is full control over unmanaged hosting, so one can decide OS according to the requirement.
3. By using an unmanaged server, one has to make sure that no illegal sites will use resources from one’s host. This will secure the website.

Cons:

1. Unmanaged hosting needs some extra time per month to manage extra work on server.
2. There is requirement to keep backups as most of settings and configurations are DIY in this hosting, so there is a chance for some failures.
3. There is no technical support for applications provided in this hosting.

Colocation refers to the professional data center facility in which a business can rent space for servers and other computing hardware. Generally it provides building, cooling, power, bandwidth, lower latency, specialist services and systems, constant security and a whole host of additional advantages. It maintains flexibility and control of owning server reduce risk and minimize capital & operating costs incurred when hosting in-house. As technology has become a part of human life as well as for industry.

Colocation: A Flexible Solution

Colocation service provides a cost-effective way to hosting securely your mission critical IT infrastructure with providing reliable and flexible Internet access for Internet or Intranet services. With colocation customer can own the server and rent required physical space to house it within a data center. Space is divided as in racks and cabinets. A rack is a horizontally standardized frame for mounting equipment and hardware. Rack is measured in rack units (U) where one rack unit is 1.75 inches. A 47U is often called cabinet.

Housing hardware gives access to higher levels of bandwidth than normal office server room and at a much lower cost. Colocation allows customers to benefit from economies of scale which would not be available with an in-house option. Flexibility is a major element in colocation which allows clients to personalize their plans that which aspect will fulfill their particular requirement.

Some Key Points to Assess Before Collocating

At some point, probably you think how much energy you want to rent a data center. Maybe hiring an off-premise facility to house your data center just makes more sense. That’s all what colocation required. So how do start the colocation options? We have following essential tools to help you

1) Know why you’re Colocating

There is a lot of reason, but you probably have a limited number of items that design your enterprise.

• Cost save from eliminating onsite facility
• Availability, reliability and enhancements
• Improved disaster recovery
• Efficient process to reach regulatory compliance
• Add flexibility for future growth
• Improved security.

Once you get to know about collection of pertinent data, specification on the current workload, costs, employee level, problems and strength. Create a checklist about present and feasible future components.

2) Location, Location, Colocation

Colocation is an extension of your work place. You are responsible for what you are setting up, maintaining hardware and software. It means you have own IT team which will visit and schedule plan to deal with unanticipated emergencies. If you are maintaining single office it could be across street or across the country.

Whatever the reasons, it is all about the colocation of your server. The best colocation providers offer locations to serve you present and as your business develop in future. You can expand your data center globally to mitigate risks of your current location. Risks will be like geological instability, power disaster or unequal network access.

3) Let’s Get Colocation Center

Now you get to know that what facilities you want for your colocation center. your check list might include some highlights:

• Colocation look: it should be new, clean, solid and smooth- running and more attractive infrastructure.
• Your server execute by themselves most of time. Ideally, the colocation company’s internal staff is granted access only when and where necessary.
• Verify the infrastructure, with long and short-term backup power, cooling and the quality of power density for the facility’s potential capacity.
• How accessible is the facility for delivering and removing equipment? When you will do installation and upgrades. It will become hectic or painful processes at the time. A efficient shipping series, protected storage and large elevators will increase team’s productivity when the time comes.

There is some more key point to be considered before locating your data center like:

• Colocation center must provide stability.
• They must fulfill the requirement of compliance and security because nothing more important than company’s private data.
• Disaster prevention and recovery are great reason to colocate. Keep in mind that colocation center has planned for the worst and consider full remote mirroring to streamline disaster recovery.
• Customized Services should be serve individually that can make your colocation implementation perfect and worthy.
• It should connect to multiple carrier networks at facility with optimized connection points and excellent network management.
• You can be great on-ramp if you plan correctly. you want to move some of your data operations to the cloud, you can move for an efficient migration.
• Always take a key concern for expand data center to help in business grow.

Since you wish to run your colocated center “hands off” then there is no substitute.

Here are some best colocation providers: Equinix, Hurricane Electric, Liquidweb, Peer1, PhoenixNap, Rackspace, Savvis, Singlehop, Softlayer and Verizon Terremark

Advantages of Colocation

1. Great benefit of colocation is the cost for bandwidth.
2. It has outage protection. Customers pay for power generators and backup power to protect against the power disaster.
3. If machine is too slow or doesn’t have enough memory, it can be simply upgrade the server. There is no need to wait for provider to get around upgrading it.
4. No need to rely on hosting provider to install the software or tools. Users can simple install software by themselves.
5. Colocation providers include additional security for server. Your machine is stored and maintained in a secured infrastructure.
6. Most colocation offers a service where they will manage and maintain your server for an extra cost. This is useful if you don’t have IT team or your office is located far from the provider.

Disadvantages of Colocation

As every factor has some merits and demerit list. So colocation has also some disadvantages:

1. Colocation providers can be hard to find. It is very easy when one near to your home or office. But it become more difficult when you live in big city with large network hub then you won’t find more colocation option.
2. Colocation can be more expensive than basic Web hosting. You have to maintain and manage servers yourself, so when server requires for updating, firstly you have to buy that hardware and install it.
3. Physical access to your server would be difficult because you have to travel at your colocation provider’s location if you move out from the area where you located your server. Either you move your servers to new provider or leave them there as you contracted before.

Colocation Way to Go

Colocation is good option for a small business who wants to get web presence but don’t want to invest in the infrastructure, and at the same time want a dedicated web server. If you are maintaining a large company with high bandwidth requirement or looking for secure hosting solutions such as corporate mailing plans, application hosting, secured FTP access and other mission web server based solutions, collocating server is the best option.