AllHostGuide.com: How Multiple Server Hosting impacts your websites uptime

Dont Get Fooled by the Web Hosting Wolves in Sheeps Clothing!


Are you looking for web hosting? If you want to set up a personal website, or a modest commercial one, you are probably in the market for an inexpensive shared hosting plan. Those entry-level plans may cost $5-10 per month, and often boast very generous features for that modest prize. However, the strong competition often causes the companies to oversell, and then have difficulties living up to their promises. And how do you go about telling the good ones from the bad?
 
Maybe you go to one of the many web hosting review sites. Those places may offer extensive listings of various web hosting companies and their features; which is certainly helpful. But be aware of the fact that these review sites are out there to make money by referring new customers to the hosting companies! Therefore, they tend to praise those companies that pay them the best.
 
I used to be naive about these things, trusting the review sites. That was until I began some serious research on the subject myself. Were they really so good, those much-praised web hosting companies? Soon, I was able to uncover large amounts of customer testimonials that told a different story.
 
It became clear that several very large and well-known web hosting companies had surprising amounts of negative customer ratings against them. There were many angry customers that related stories about incompetent or non-existent customer support, billing disputes where the company kept charging ex-customers after they had cancelled their accounts; and more.
 
One may say that any company with many customers is likely to have a few that are hard to please. But in these cases, there were scores of reviews, and the majority was negative! Since certain hosting companies are known to prosecute those who have criticized them in public, I will not mention any names here.
 
In conclusion: I advice anyone looking for a reliable and honest web hosting provider to be very careful and not put too much trust in the web hosting ratings commonly found at hosting review sites and similar places. Also be aware that the customer feedback published by the web hosts themselves on their sites is of course filtered - and may even be faked.

I am a researcher, an artist, and a web developer. On my website, www.TheHostingFinder.com, I have gathered some information on the good type of web hosts - the kind that has a majority of happy and satisfied customers. I hope this may be of some help to people looking for good web hosting.

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How Multiple Server Hosting impacts your websites uptime






Please consider the following article for your ezine, ebook or web site. It is free to use as long as you include the resource box at the end. It contains 792 words. If you use this article, please send a brief message to let me know where it appeared. info@irieisle-online.com

Article available for reprint: godfreyh@irieisle-online.com ==================================================== Hosting of web sites has essentially become a commodity. There is very little distinguishing one hosting company from the next. Core plans and features are the same and price is no longer a true determining feature. In fact, choosing a host based on the cheapest price can be more expensive in the long term with respect to reliability issues and possible loss of sales as a result of website downtime.

Selecting a host from the thousands of providers and resellers can be a very daunting task, which may result in a hit and miss approach. But although hosting may have become a commodity, one distinguishing feature that you must always look out for is reliability.

At the heart of any hosting company's reliability is redundancy. This ensures that if a problem exists at one point, there will be an alternative which ensures continuity as seemlessly and transparently as possible.

Most hosts do employ redundant network connections. These are the high speed pipes that route data from the server to your web browser. But, redundant 'multiple web servers' have been extremely rare and very expensive, requiring costly routing equipment which has previously been used only in mission critical applications of Fortune 500 companies.

However, a very neat but little known Domain Name Server(DNS) feature called 'round robin' allows the selection and provision of a particular IP address from a 'pool' of addresses when a DNS request arrives.

To understand what this has to do with server reliability it's important to remember that the Domain Name Server (DNS) database maps a host name to their IP address. So instead of using a hard to remember series of numbers (IP address) we just type in your web browser www.yourdomain.com, to get to your website.

Now, typically it takes at at least 2 to 3 days to propagate or ‘spread the word' of your DNS info throughout the internet. That's why when you register or transfer a domain name it isn't immediately available to the person browsing the web.

This delay has stymied the security benefits of hosting your site on multiple servers, as your site would be down for a couple of days if something went awry with one server. You would have to change your DNS to reflect your second server and wait days before the change was picked up in routers on the internet.

However, the round robin DNS strategy solves this predicament, by mapping your domain name to more than one IP address.

Select hosting companies now employ the DNS round robin technique in conjunction with'failover monitoring'.

The DNS round robin failover monitoring process starts by a web hosting company setting up your site on two or more independent web servers (preferably with different IP blocks assigned to them). Your domain name will therefore have 2 or more IP Addresses assigned to it.

Then the failover monitor watches your web server(s) by dispatching data to a URL you specify and looking for particular text in the results. When the system detects that one of your IP addresses is returning an error, and the others aren't, it pulls that IP address out of the list. The DNS then points your domain name to the working IP address/s

If any of your IP's come back online they are restored to the IP pool. This effectively and safely keeps your site online – even if one of your web servers is down.

The average failure detection and recovery time with a system like this can be as low as 15 minutes. This time varies depending on the speed of your site and the nature of the failure and also how long other ISP's cache (save) your DNS information.

The time taken for other ISP's caching your information can be manipulated in the failover monitor by lowering the "time to live" (TTL) cache settings. These are the settings that other ISP's will use to determine how long to cache your DNS information.

Of course you must bear in mind the matter of how frequently data is synchronized between your website's servers. This will be the hosting company's responsibility, and this may become complicated where databases and user sessions are involved.

The very expensive hardware based failover monitoring systems that point a virtual IP address to other ISP's, while behind the scenes juggling a number of unique IP addresses on different servers, is of course the most 'elegant' solution to multi server hosting.

That way, the whole issue of ISP's caching your information does not come into play.

Therefore, for site's that need to have true 99.99995% uptime, without huge outlays of money, the technology is readily available and certain proprietory failure monitoring systems are now relatively cheap to apply.

Godfrey Heron is the Website Manager of the Irieisle Multiple Domain Hosting Services company.Signup for your free trial, and host multiple web sites on one account: http://www.irieisle-online.com
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Did You Know?

Migrating smoothly from one web host to another


Changing your Web Host can be an expensive, time consuming and difficult practice; being the main reason why many dissatisfied customers prefer to stay and put up with an awful hosting service.

During most website migrations, through lack of knowledge or experience, many website owners end up loosing clients and damaging time-built company images, because their sites are unavailable for days or weeks on end. Another problem is loss of emails, some crucial, making migrations very expensive and even dangerous.

Migration from one web host to another is not difficult; it can be fast and safe when one knows what the experts know. By following the steps below you will stand a better chance of a smooth transfer.

The most important start to website migration is finding another web host, one that will not give you reason to migrate again, or soon. A whole book can be written on how to choose a web host; or by searching on ‘choosing a web host' in a major search engine, there will be many articles available.


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