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Web Hosting - Sharing A Server – Things To Think About
You can often get a substantial discount off web hosting fees by sharing a server with other sites. Or, you may have multiple sites of your own on the same system. But, just as sharing a house can have benefits and drawbacks, so too with a server.
The first consideration is availability. Shared servers get re-booted more often than stand alone systems. That can happen for multiple reasons. Another site's software may produce a problem or make a change that requires a re-boot. While that's less common on Unix-based systems than on Windows, it still happens. Be prepared for more scheduled and unplanned outages when you share a server.
Load is the next, and more obvious, issue. A single pickup truck can only haul so much weight. If the truck is already half-loaded with someone else's rocks, it will not haul yours as easily.
Most websites are fairly static. A reader hits a page, then spends some time skimming it before loading another. During that time, the server has capacity to satisfy other requests without affecting you. All the shared resources - CPU, memory, disks, network and other components - can easily handle multiple users (up to a point).
But all servers have inherent capacity limitations. The component that processes software instructions (the CPU) can only do so much. Most large servers will have more than one (some as many as 16), but there are still limits to what they can do. The more requests they receive, the busier they are. At a certain point, your software request (such as accessing a website page) has to wait a bit.
Memory on a server functions in a similar way. It's a shared resource on the server and there is only so much of it. As it gets used up, the system lets one process use some, then another, in turn. But sharing that resource causes delays. The more requests there are, the longer the delays. You may experience that as waiting for a page to appear in the browser or a file to download.
Bottlenecks can appear in other places outside, but connected to, the server itself. Network components get shared among multiple users along with everything else. And, as with those others, the more requests there are (and the longer they tie them up) the longer the delays you notice.
The only way to get an objective look at whether a server and the connected network have enough capacity is to measure and test. All systems are capable of reporting how much of what is being used.
Most can compile that information into some form of statistical report. Reviewing that data allows for a rational assessment of how much capacity is being used and how much is still available. It also allows a knowledgeable person to make projections of how much more sharing is possible with what level of impact.
Request that information and, if necessary, get help in interpreting it. Then you can make a cost-benefit decision based on fact.
Web Hosting - The Internet and How It Works In one sense, detailing the statement in the title would require at least a book. In another sense, it can't be fully explained at all, since there's no central authority that designs or implements the highly distributed entity called The Internet. But the basics can certainly be outlined, simply and briefly. And it's in the interest of any novice web site owner to have some idea of how their tree fits into that gigantic forest, full of complex paths, that is called the Internet. The analogy to a forest is not far off. Every computer is a single plant, sometimes a little bush sometimes a mighty tree. A percentage, to be sure, are weeds we could do without. In networking terminology, the individual plants are called 'nodes' and each one has a domain name and IP address. Connecting those nodes are paths. The Internet, taken in total, is just the collection of all those plants and the pieces that allow for their interconnections - all the nodes and the paths between them. Servers and clients (desktop computers, laptops, PDAs, cell phones and more) make up the most visible parts of the Internet. They store information and programs that make the data accessible. But behind the scenes there are vitally important components - both hardware and software - that make the entire mesh possible and useful. Though there's no single central authority, database, or computer that creates the World Wide Web, it's nonetheless true that not all computers are equal. There is a hierarchy. That hierarchy starts with a tree with many branches: the domain system. Designators like .com, .net, .org, and so forth are familiar to everyone now. Those basic names are stored inside a relatively small number of specialized systems maintained by a few non-profit organizations. They form something called the TLD, the Top Level Domains. From there, company networks and others form what are called the Second Level Domains, such as Microsoft.com. That's further sub-divided into www.Microsoft.com which is, technically, a sub-domain but is sometimes mis-named 'a host' or a domain. A host is the name for one specific computer. That host name may or may not be, for example, 'www' and usually isn't. The domain is the name without the 'www' in front. Finally, at the bottom of the pyramid, are the individual hosts (usually servers) that provide actual information and the means to share it. Those hosts (along with other hardware and software that enable communication, such as routers) form a network. The set of all those networks taken together is the physical aspect of the Internet. There are less obvious aspects, too, that are essential. When you click on a URL (Uniform Resource Locator, such as http://www.microsoft.com) on a web page, your browser sends a request through the Internet to connect and get data. That request, and the data that is returned from the request, is divided up into packets (chunks of data wrapped in routing and control information). That's one of the reasons you will often see your web page getting painted on the screen one section at a time. When the packets take too long to get where they're supposed to go, that's a 'timeout'. Suppose you request a set of names that are stored in a database. Those names, let's suppose get stored in order. But the packets they get shoved into for delivery can arrive at your computer in any order. They're then reassembled and displayed. All those packets can be directed to the proper place because they're associated with a specified IP address, a numeric identifier that designates a host (a computer that 'hosts' data). But those numbers are hard to remember and work with, so names are layered on top, the so-called domain names we started out discussing. Imagine the postal system (the Internet). Each home (domain name) has an address (IP address). Those who live in them (programs) send and receive letters (packets). The letters contain news (database data, email messages, images) that's of interest to the residents. The Internet is very much the same. Find Free Stuff Online by Visiting the FreeStuffOnline Website Whatever it is somebody is searching for, he might be able to find it on the FreeStuffOnline website. The FreeStuffOnline website is a page that offers links to other pages that have products that are free off charge available to anybody. Pages like this one collect links and web addresses that offer free products and then publish it as a great resource to the broader public. The links offered by FreeStuffOnline leads to a variety of different topics and offers and there might be just what someone one is looking for. The web page offers categories such as educational freebies, which includes Study notes, Encyclopedias, books and more. Family freebies have categories for babies, children and parents. For the computer world there are free products such as free antivirus software, freeware programs, games and graphics, shareware, music and screensavers. For the cell phone fanatic, there are links to free cell phone ring tones and short message programs. A seasonal freebie category holds anything that relates to the major holidays in the United States, such as Christmas, Halloween, Easter and more. The category “internet” offers links to free web hosting pages, e-mail providers and much more. The way such pages work is by the various masters that take care of adding and removing links. As a matter of fact, anyone can add freebie links to the page. This is one of their most important tools to keep such a freebie page working. Anyone who finds a good freebie that is not a fraudulent page should go to the FreeStuffOnline web page and add the link. Other people will benefit from the link just as much as the person that added it. To keep such sites possible the effort of anyone that is looking for freebies is necessary. There are many organizations out there that specialize in providing help for the ones that do not have a wealthy family to pay for all of it. Organizations that specialize in literature offer PDF files of books of world famous authors such as Shakespeare, books that anybody should have the chance to read. Other pages specialize in children’s songs. Downloadable MP3s, legal downloads of these songs are available to make music an integral part of young children’s lives. Even for the new craze of sharing pictures, files and other important date there are links that guide the user to pages that will offer such services for free. Sharing pictures with loved ones should be easy and free and available to anybody. Whether it is the grandparent that lives hundred of miles away or a father that serves in the army, these pages offer the opportunity to anyone to share important data such as pictures over the distance. Using an online file sharing web page also has the advantage of speed over regular mail. Until the pictures are sent to their destination by mail, it can take days, but on the Internet the process takes a few seconds and the person at the other PC can see the data almost instantly. When these files are shared there is always the possibility to have the pictures printed at one of the photo stores and the person will still be able to hold printed pictures in their hands. One other important fact to know about these free online pages like FreeStuffOnline is that whenever you come onto a link that is not working, let them know, only by people telling the web master that the link is not working it can be removed. Helping to maintain the page by alarming for broken links can reduce the frustration to other that was trying to check out the link. |