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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. Staying Computer Safe while Searching for Freebies on the Net Who doesn’t love the idea of getting something for nothing? Free stuff can bring a smile to anyone’s face, and the Internet is destination number one when you are looking for cash in on a few freebies. The downside of free stuff online is that if you aren’t careful, the free item could end up causing plenty of headaches and heartaches, not to mention a lot of cold, hard cash. If you want to score with free stuff online, make safety your number one priority by following these tips. First and foremost, treat your personal information like its cash. That might sound a little dramatic, but anyone who manages to steal your identity online is after one thing, and one thing only, your money and any addition money they can grab by cashing in on your credit. Protecting your name, address, credit card number, bank account number, phone number, social security number, and so on and so forth when you are registering for free offers is the first step to making sure you don’t get hustled when you’re just trying to enjoy a good freebie. That means that if you are asked for some personal information that you don’t feel comfortable handing out, let the freebie go. Likewise, make sure the site from which you are getting your free stuff has a privacy policy and that you know it, understand it, and can live with it. Speaking of that site that is handing out the free goods: just who are these people? If you were walking down the street and a shady looking person said they would give you a free DVD player if you followed them, chances are you would run the other way. Online, it is hard to tell the legitimate people from the people looking at you like a free lunch, but there are a few red flags you can look out for. Does the website look like it was thrown up in about 5 minutes, full of clip art and bad spelling? Is it hard to find information about where the website is registered, or where the business the website is supposedly promoting is registered? If the website purports to be affiliated with a certain brand you know, does it really look like it is, or does the logo look different/colors look off? If you can’t get a reasonable feel for who are dealing with online, don’t deal with them. Red flag number one? Asking for too much personal info should send you running. Another way to protect yourself is to build a virtual fortress around your computer. The net is filled with people who know how to walk right into your virtual home – your computer – and flip through everything you have on there, taking whatever they want. Many of these kinds of hackers draw you in by creating phony freebie websites. The way to keep them out is to keep your computer on lockdown. Make sure your firewall is stronger than you think it needs to be, and make sure it is always updated. Also, make sure you have antivirus software on the patrol for you and that you keep this software updated as well. Last but not least, keep those passwords in the vault, and make sure they are extra strong. No freebie website has any reason to ask you about the passwords for your accounts so don’t give them away – and don’t give them to anyone else online for that matter. Also, if you’re using your birthday or child’s name as password, don’t. Sure, it isn’t as easy to remember, but your password should be a random word and contain a collection of numbers and symbols as well. This will give you the extra layer of protection to make sure your online house is in order when you cash in on the freebies. |