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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.

Web Hosting - Redundancy and Failover Among the more useful innovations in computing, actually invented decades ago, are the twin ideas of redundancy and failover. These fancy words name very common sense concepts. When one computer (or part) fails, switch to another. Doing that seamlessly and quickly versus slowly with disruption defines one difference between good hosting and bad. Network redundancy is the most widely used example. The Internet is just that, an inter-connected set of networks. Between and within networks are paths that make possible page requests, file transfers and data movement from one spot (called a 'node') to the next. If you have two or more paths between a user's computer and the server, one becoming unavailable is not much of a problem. Closing one street is not so bad, if you can drive down another just as easily. Of course, there's the catch: 'just as easily'. When one path fails, the total load (the amount of data requested and by how many within what time frame) doesn't change. Now the same number of 'cars' are using fewer 'roads'. That can lead to traffic jams. A very different, but related, phenomenon occurs when there suddenly become more 'cars', as happens in a massively widespread virus attack, for example. Then, a large number of useless and destructive programs are running around flooding the network. Making the situation worse, at a certain point, parts of the networks may shut down to prevent further spread, producing more 'cars' on now-fewer 'roads'. A related form of redundancy and failover can be carried out with servers, which are in essence the 'end-nodes' of a network path. Servers can fail because of a hard drive failure, motherboard overheating, memory malfunction, operating system bug, web server software overload or any of a hundred other causes. Whatever the cause, when two or more servers are configured so that another can take up the slack from one that's failed, that is redundancy. That is more difficult to achieve than network redundancy, but it is still very common. Not as common as it should be, since many times a failed server is just re-booted or replaced or repaired with another piece of hardware. But, more sophisticated web hosting companies will have such redundancy in place. And that's one lesson for anyone considering which web hosting company may offer superior service over another (similarly priced) company. Look at which company can offer competent assistance when things fail, as they always do sooner or later. One company may have a habit of simply re-booting. Others may have redundant disk arrays. Hardware containing multiple disk drives to which the server has access allows for one or more drives to fail without bringing the system down. The failed drive is replaced and no one but the administrator is even aware there was a problem. Still other companies may have still more sophisticated systems in place. Failover servers that take up the load of a crashed computer, without the end-user seeing anything are possible. In fact, in better installations, they're the norm. When they're in place, the user has at most only to refresh his or her browser and, bingo, everything is fine. The more a web site owner knows about redundancy and failover, the better he or she can understand why things go wrong, and what options are available when they do. That knowledge can lead to better choices for a better web site experience.

Big Time Experience with Small Time Publications (writing newsletter articles) When you start writing, you may have ambitions of getting your name on the front page of newspapers and on feature stories in magazines, but you will soon find out that it takes time to get there. Even the best writers have to make their way through the ranks before making it to headline status. Don’t be discouraged though. Even though you may have been rejected more times than you could have ever imagined, there are still many places that will be accepting. Even if you feel like you’ve exhausted all of your creative power, there are publications that are ready to help you develop even further. The buildup is not leading towards riches or fame, but writing newsletter articles can be a great step in that direction. The first thing that any writer should realize is that there is more to learn. Even knowing all of the grammar and all of the clarity rules will not make you a good writer. Only experience can bring you to that place. Newsletters are a great place to start getting cleaning up your writing and to start learning to write for different audiences. Who Prints Newsletters? Why are newsletters such a great place to start earning publications? There are plenty of organizations and groups that print them. The printing money and the circulation are already in place. The other great thing about writing newsletter articles is that there is almost always a high demand for newsletter writers. The pay is not great and is most often non-existent, but the newsletters must go out all the same. Hit up any organization in town that you know prints a newsletter. Some of the printing is done nationally for the larger organizations, but many will be done locally. Try volunteer and non-profit organizations as well as university and church groups. These organizations will all have news that they need to get to the public. Many of them survive based on public donations. What that means for you is that there is plenty of demand for talented and interesting writers. The Expert in Print If you have any sort of claim to expertise along with your writing skills, you will be a fantastic candidate for writing newsletter articles. One great draw for a reader is the pull of a well researched and authoritative article. Imagine the thrilled group of environmentalists when you approach them with evidence that the developmental process for non-stick pan coating is connected to the decreasing population of Asian tortoises. You’d have a job in no time. Regardless of whether or not you got paid for your work, you can expect that you’d get repeated assignments, growing experience and bylines galore for your next step of job applications. Being knowledgeable about a certain subject will give you many writing opportunities. If you have any experience in a subject area, be sure to add it to your resume. As you write newsletter articles, you’ll only add to you’re your expertise. Other Newsletter Articles If you don’t necessarily believe that you have an area of expertise that is not a problem. There are many other ways to get into writing newsletter articles. A big part of newsletter content is just content. Newsletters need to be made up of interesting and varied articles. There are usually volunteers that head up the projects and they in turn hire various writers to fill in the titles that they choose. If you can be flexible in your writing and if you can find a newsletter that works with a topic you care about, you will be well on your way to building your resume with bylines and great circulation. Writing newsletter articles will probably not be a career in itself because of the low pay scale, but it will take you closer to a lucrative writing career. Think of writing newsletter articles as a type of community service. Even after you have added paying pieces to your repertoire you may continue to write for the newsletters that you care about.