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Virtual Private Servers (VPS) - A Guide

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Web Hosting, if tarred with as broad a brush as possible, is split into Shared and Dedicated Hosting. There are those who purchase a space on a server for their own use, and then there are those who just buy the server. A bit like buying a plane ticket, or buying a plane (except the difference between a return to Oslo and a Cessna are a bit more pronounced).

There is a bridge over these troubled waters, however. It's known as VPS (Virtual Private Server - it's also known as VDS, Virtual Dedicated Server, but that's not as common, presumably because it leads to confusion with old fashioned displays and sounds like something unsavoury you might catch on a night out in Calcutta). VPS allows freedom from the constraints of Shared Hosting, without the expense or expertise of a Dedicated server.

A Shared Hosting server typically has an operating system installed on it, and the host then installs the software they want - they set the server exactly as they like it, and then customers pay them certain amounts of money to purchase a little space on the server. The customer has as much control over that space as the host will let them, and their performance will be based on however many customers are Sharing the server (hundreds, perhaps). Remember that a server is just like your computer at home or at work - and just like your computer, it has a certain amount of memory and a certain speed of processor, and it can only do so many things at once before it has to start putting people in a queue (this is the point where your site may seem slower than usual).

A Dedicated server works the same as a Shared server, except the owner of the server has far more control over what is on their server. Like the hosting company with the Shared server, the owner of the Dedicated can pick the operating system, what software is installed, and how many sites run on the server. If a Dedicated server is set up specifically for one site and is configured for that site alone, that site will run considerably faster than a site on a Shared server. It doesn't have to share resources and it can be built purely for the purposes of running that site.

VPS sits between these two types of hosting. There are several kinds of VPS, but we will focus on software VPS. In this instance, the host will buy the server, and install an Operating System (OS) on it. They then use another program (i.e. Virtuozzo) to create several isolated Virtual Servers (sometimes known as Containers) on the server. Each of these Containers is a Virtual Server - they function as if they were stand-alone, Dedicated Servers, when in actual fact they are a more advanced form of Shared hosting!

Compared to Shared hosting, VPS has many benefits. To begin with, Shared hosting comes with no performance guarantees. That's not to say that Shared hosting is slow - it's just that some sites require a lot more resources than others, and a few busy or intensive sites on a full Shared server could well impact the performance of everyone else (try opening a few basic programs on your computer at once , keep them open, and then see how well your computer runs when you start a virus scan - those basic programs aren't so responsive now, are they?).

With a VPS, your Container will come with a guaranteed proportion of the server's resources. This usually comes in the form of RAM (Memory) available - for instance, your VPS might come with a guaranteed 256 or 512 MB of RAM. This means that, regardless of how many people there are on the server, regardless of how busy their sites are, you always, always have that much memory available for you to use. Some companies also advertise the 'burst' memory available to you as well. This is essentially the memory that you could conceivably use, assuming that everyone else isn't using their quota. However 'burst' memory is a subjective term - as there are no guarantees on how often this memory will be available to you (beyond the length of a piece of string), it's more a fancy figure to impress potential customers with.

As a Container is purchased with a guaranteed RAM quota, there will be far fewer customers sharing a VPS server than there would be sharing a, er, Shared server. So the CPU won't be divided between as many clients and their respective demands on it, so speeds will improve and the load on the CPU will decrease. All in all - your hosting will be noticeably faster. Again, some hosts will advertise CPU preferences, server contention rates etc., to demonstrate how the more expensive VPS packages will take preference to some degree over the cheaper packages when requesting resources from the CPU. How much this makes an impact on your decision to buy that VPS or not is up to you; many hosts don't make any preferences between packages whatsoever.

The other major benefit to a VPS is the extra control that you will have over your hosting. If you've managed to find someone who does hardware VPS, then you'll be able to pick your own OS as well (hardware VPS, essentially, creates the VPS on a hardware level rather than a software level - the good part; you can do whatever you like with your VPS - the bad part; the hardware, rather than shared, is divided, so instead of having the use of, for instance, a 2gHz processor and a guaranteed 256MB of RAM, you get a .5gHz processor and a guaranteed 256 MB of RAM if 4 people are sharing your server). From here you can configure your hosting as you see fit - customise your PHP settings, install PHP x, Zend whatever, Hardy Heron and/or Peggle (not recommended for a work environment). Even better, as your VPS is essentially a Virtual Machine, you can take snapshots of your entire VPS - so your whole account can be backed up into a single file, and then should something go horribly wrong, you can use the snapshot to restore the VPS in its entirety.

VPS will, of course, cost more than Shared Hosting, but on the flip side of the coin it is considerably cheaper than a Dedicated server. If performance is more of an issue for you than cost then a Dedicated is the way forward - a VPS will never be able to command the amount of resources that a Dedicated server used for the same purpose can. But as a cost-effective solution to providing a significant performance boost to your hosting, as well as allowing yourself a greater degree of control - VPS is hard to fault.

*Please note - I've been to Calcutta. I'm not implying that the place is unsavoury, disreputable, or otherwise trying to smear the good name of Calcutta in any way - it just seemed to round the sentence off nicely!

About the Author:

Ewan MacLeod works for NuBlue, a UK based Web Agency that specialises in Web Design and Web Hosting.

  • Ewan MacLeod
  • NuBlue Web Solutions
  • http://www.nublue.co.uk


  • Web Hosting



    This is an article to help you decide on choosing either an unmanaged or a managed web hosting server. To find out which is more suitable for you, you have to make certain comparisons. However, different providers will provide different quality of service. All aspects such as the location of the company, the mother provider company, power supplies and research all plays a part in the performance of the hosting company.

    For an unmanaged hosting, you or your company will be in charge of taking care of its service. You must also take care of the software maintenance yourself. This type of server will prove to be full of hassle because you will need a 24 hour team to monitor servers.

    Therefore, there will be extra cost to hire additional employees or staff to be around to duty around the clock to ensure that your server is being monitored. So, you can draw a conclusion here that any situation that does not require the server to be at a stable situation will be okay for an unmanaged hosting. If you have the money to hire a team of staff to monitor your servers, then you might suggest that the unmanaged hosting is no problem at all.

    For the situation where you are using a new server and that server need to stay online at all times, a managed web hosting should be your only choice. Managed web hosting even comes with updates, security patches and 24 hours seven days a day of support. The data centers will take care of everything for you for a very reasonable fee.

    The difference between the unmanaged and managed hosting is cost is not much if you only have one server. However, if you have more than one server to look out for, you may consider unmanaged hosting a hard choice to make unless you have a server management team that will work for you in all times to give you the reliability. Just compare the cost to see which one is a smarter and better choice.

    Looking for affordable web hosting? Then you can't afford to miss WebHostNinja's hosting price comparison guides. Compare more than 600 hosting pricing and features and get the best hosting package now.

    Article written by Justin Knights.

    Web Hosting


    Soccer Smash - Computer Soccer Games For Kids

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    Soccer smash are computer games for the kids. With the development of technology, a lot of computer games such as third person shooting games, strategy games, and simulation games with sophisticated graphics effects have been created. But these games are more for adult market because they are more complicated to play.

    As with the soccer smash, these are very simple games which are created in flash and java program. This game offers a user friendly interface and is fun to play especially for young children who love soccer. The game can be played in just few strokes of the mouse and simple keys.

    The game simulates a game of soccer wherein the player tries to score goals against the opposing team. The player controls the player of his teams and kicks the ball in a manner to achieve goals. As the player wins, it enters another stage of the game with more difficult opponents. The game will continue with series of challenges and increases its difficulty until the player defeats all level of the game. These games are readily available to play for free in several websites.

    These games are developed in response to the popularity of the sport even with kids. It is a fun way of stimulating the children's interest with the sport. It also develops the responsiveness and ability of a child to think of strategies.

    So let your kids play the virtual smash games and let them enjoy being a professional soccer player and defeat their opponent.

    Watch Videos about soccer smash.

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    Blogger BlogNet56630: Nov 7, 2008

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