How Secure Are Virtual Private Servers?

August 2nd, 2011 By: Tavis J. Hampton

Security Content Sponsored By: Trustwave

Whether you are the administrator for your own server and hosting multiple virtual private servers (VPS) or you are a VPS user sharing a server with others, the question of security is definitely one you might want to ask.

How secure are virtual private servers?

Does each VPS administrator potentially pose a security risk to the others?

One of the benefits of a VPS and virtualization in general is that you can run a complete and functional installation of an operating system within another OS installation.
For example, you can run a fully-functional Windows installation from within Linux. Furthermore, unlike emulation, virtual machines tap directly into the hardware, requiring no extra CPU power.

Moreover, a VPS is installed in something called a container.
In Linux, there is the concept of a chroot jail, within which is a complete installation of an operating system. For the user, the VPS appears to function exactly like a dedicated server, providing full root access and all of the administrative privileges that accompany that access.
In reality, however, that user cannot navigate outside of his container and is always restricted within it.

Even if the OS within a virtual machine crashes, freezes, or is otherwise disrupted, the rest of the server and the other VPS containers will continue to function normally.
Furthermore, each container is only allocated a specified amount of CPU power and memory.
Even if that is maxed out by some anomaly, the rest of the server should continue to function as expected. Therefore, virtual private servers are very secure for you as a dedicated server system administrator and for other VPS users.

  
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Use your Database VPS to Backend Everything

July 27th, 2011 By: THN News

 

VPS Content Sponsored By: UltraVPS

(The Hosting News) – Data is big business in the world of IT. How it is managed, stored and taken care of is of significant interest to all of those who work in the IT department of any company, and to those who work in IT provider roles within the industry.
With the advancement of both virtualization and the cloud, how data is managed has taken on an even larger role, as companies struggle to understand how new technologies can help them store their data more efficiently, as well as why they must be careful about how much of their data is stored and where.

The integration of the term “cloud” into everyday business IT language has brought with it the concept of “as a service”.
Thanks to the cloud’s always-on model as a part of the Internet at large and constantly up servers, providers have begun to offer almost every part of IT functionality as purchasable services, many of which were formerly viewed as the province of in-house IT.
These include software as a service (SaaS), infrastructure as a service (IaaS), and platform as a service (PaaS).
Both SaaS and IaaS are rapidly gaining ground; the fact that PaaS is lagging behind has companies contemplate just how much of their proprietary platform choices they wish to give up.

A new option that has developed in the last two years is the concept of database as a service (DaaS), which allows companies to store their data on a provider’s server.
While there is a great deal of interest in this service, companies must know what they are getting into before they make a switch.

The most common form of DaaS is on a Database VPS. This is often a more tightly-focused version of the cloud, in which data from a customer is stored on a virtual machine which is part of a larger physical server. If the data is stored truly in the cloud, it will be spread among multiple servers that have access to a single storage disk, and that can provide backup if there is a failure.
When it comes to database storage, the most common concern among companies is knowing exactly where their data is going.
While it will still be accessible to them from their local desktops, its physical home will no longer be in their offices, but in a server which could be located anywhere in the country or on the other side of the world. For some, this distance is too great to be borne, and using DaaS isn’t yet an option.

For others, the concern lies in security. A database VPS must have adequate controls and permissions in place to guarantee data privacy.
Data can be a very valuable commodity, and can include things like intellectual property, patent information and proprietary program design.
Administrators at a local level must have access to their own data, but admins from the provider must also have some access as well, in order to address any problems that may emerge if the server fails.
This kind of hosted database option can allow a company to use the provider’s server as a backend to their own applications, and may run on MySQL, PostgreSQL, or Microsoft SQL VPS allowing for a broad array of data storage choices.

Once a reliable provider has been identified that can guarantee security, access and storage location, a database as a service option can be a great use of a Hosted VPS or Cloud VPS in allowing a company to free up local storage space and keep IT costs down.

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Selecting Dedicated or VPS

June 22nd, 2011 By: THN News

VPS Content Sponsored By: UltraVPS

Should you be using a virtual private server (VPS) or dedicated server for your hosting?
The decision can be tough as it really depends on which fits your specific needs as someone involved in the hosting industry.
This is true whether you’re just starting out or contemplating a switch from one to the other.

Here we examine both dedicated and VPS.

Dedicated Hosting

Dedicated servers provide clients with the ability to have their own server space, a luxury that allows clients to choose which hardware and operating system they’d like to run on the server.

Despite the choices, you don’t actually own your dedicated server’s hardware. Dedicated Servers are stored within data centers and are owned by a provider.
Even though you don’t own the actual hardware, a benefit is that some providers offer great customer support.

What you pay for dedicated hosting can greatly vary, dependent on the size and type of information you host.
Selecting which operating system you use on a dedicated server can cost you more.
However, the good news is that if you’re planning on using an open operating system like Linux or Unix, most dedicated hosting providers actually offer those at discounted charges or completely free.

Also, if you’re focused on usability and easy access, the great thing is that most dedicated servers come with great control panels, thus making what you host easy to oversee and manage.

Although there are great benefits that come with dedicated hosting, it’s also important to examine how your server provider is fitting your needs.

A question that it’s very important for a client to ask is, “Could I cut costs by moving what I host from a dedicated server to a Virtual Private Server (VPS)? The answer is “perhaps” as it really depends on the size and type of services you host.

Making the Move to VPS (Virtual Private Server)

You now might be thinking, “Should I consider switching to VPS?”
Well, if you’re just looking to host smaller at a cheaper rate, all while having more control, then VPS might be your answer.

Here we’ll examine some of the benefits of hosting with a virtual private server (VPS).
One of the great attributes of VPS is in the name itself, it’s that they offer the client privacy.
But the greatest thing about VPS is that it also gives the client more control over what they host.
You don’t have to rely on dealing with a server provider when something goes wrong with your server’s hardware.
Virtual Private Servers give the client greater independent control over their server space, thus allowing VPS clients to reboot the server system independently.

Despite the independent usability, some VPS providers offer managed VPS. Remember, if you go with an unmanaged server, you’re responsible for more.

VPS also provides the client with the ability install various types of software on their servers, whereas with dedicated, you’re more restricted.

Having independent control over your server also means you’re more responsible when something goes wrong.
This might sound bad to some.
However, with VPS, you might not have the service support that dedicated may offer, but you’ll be bound to learn a whole lot more about managing servers from having independent control.

As an independent operator, you can find affordable solutions to backing up your VPS, thus keeping your hosted data secure.
A company like R1Soft.com will provide you with an affordable solution.

Also, if you’re looking to keep up with the changing technology, here’s a key factor to consider: Dynamic Virtual servers are also referred to as cloud servers.
We all know how everything’s moving to the cloud!

So now that we know more about both dedicated hosting and VPS, here are the key factors to consider when selecting which you’d like to use:

-What is the size of the data I’m hosting?
-Do I want greater control over my server? (Remember, with greater control comes more responsibility)
-How much am I willing to pay?
-What software would I prefer to run?

Choosing the best server that fits your specific hosting needs is of utmost importance. Please keep the above in mind when selecting either or choosing to move from dedicated to VPS.

 
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