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Web Hosting - DNS, How The Internet Keeps Track of Names
The way computers communicate is, in a way, very similar to something very familiar: the postal system that delivers letters and packages. Here's how...
The Internet is just what the name suggests, a large inter-connected set of networks. But those networks are pointless without the one part that forms what is called their 'end-nodes', otherwise known as computers. Those computers often need to share information because the people who use them want to share information.
But, in a system where there are millions of separate computers, how can you enable them all to communicate? One very important feature of that solution is performed by something called DNS, the Domain Name System.
Every part of a network that is going to send or receive information is assigned an IP address. That's a numeric identifier that uniquely specifies a particular 'node', such as a computer, a router that directs traffic or other component. They look like this: 209.131.36.158
But those numbers are more difficult for people to remember and work with. They also aren't very attractive from a marketing perspective. So, a naming system was layered on top of some of them, mostly the computers involved, though routers have names, too.
But once you have a system that associates a unique IP address to a given name, you need some way of keeping track of all of them. That's carried out by several different pieces of the system: Name Registrars, DNS Servers and other components.
The Name Registrars, overseen by IANA (Internet Assigned Numbers Authority) and other international bodies, provide and keep track of domain names. When you register with GoDaddy or any of a hundred other intermediate companies, ultimately that information makes its way into a number of specialized databases stored inside DNS Servers.
A DNS Server is the hardware and/or software that tracks and forwards the IP Address/Domain Name pair from one place to the next. In many cases, there are a number of them between your browser and the remote computer you want to share information with.
Suppose you request information from, say, Yahoo's site by clicking on a link on their site. DNS resolves (translates) the name of WHO IS making the request and OF WHOM, to addresses, then passes the request through the network to the requested IP address. The requested data is then passed back through the mesh of network components to your computer and displayed in your browser.
Whether the communication is between a desktop computer and a server somewhere, or between one server and another, the process is essentially the same. DNS servers translate names into IP addresses and the requests for data are forwarded on.
In some cases those DNS servers are part of a specialized network computer whose sole job is to do the translation and forwarding. In other cases the DNS software may reside on a server that also houses a database of general data, or stores email, or performs other functions.
But however complicated the chain or the parts, the basic process is simple. Translate the name to an address, just as the postal system does. Whether international or local, your name is associated with an address, and the deliveries are made to the address, then forwarded to a particular name.
Writers Block: What Causes it and How to Overcome it (writers block) If you are a writer then you know what I am talking about. You have everything ready, a drink, a snack, the topic, and even reference material. You sit down ready to start typing or writing, which ever you prefer, and it happens. You are stuck, your mind is blank and you have no idea how to fill that blank canvas in front of you. It is a writer’s worse nightmare come true. You have writers block. First you need to figure out what is causing it. There are a multitude of things that can be causing it. Stress is one of the biggest factors that cause writers block. Whether it is stress caused by personal matters, deadline dates, or fearing your article won’t be good enough it can block the words from flowing as easily as the should. Sleep deprivation doesn’t let your mind function to its full potential. Getting a good night’s sleep is imperative to having a clear mind and being able to focus. The project itself could be causing the writers block. A topic you are not interested in can easily turn your normally resourceful mind into jelly. The research on that topic turns into a grueling task. Then trying to put the words on paper that make sense and will peak someone’s interest seem impossible. If a topic has personal meaning to you it can be hard to write objectively about it. A simple informative topic can easily become a personal rant session. Writing because you have to, not because you want to makes it hard to concentrate and focus. Now that the basic causes have been covered, you need to know how to fix it. Writers block is not permanent. Identifying the reason is the hard part. Relax. The world is not going to end if the article isn’t as perfect as you feel it should be. Just because you don’t think it is perfect doesn’t mean someone else won’t. Go and read some of your previous writings. Even if what you read has nothing to do with your current topic, it can be inspirational to you. Don’t burn yourself out on a topic. Try to split up the writing process. Research and brainstorm one day and write the next. This will give you time to think about your topic and figure out the angle you want to write. Talk your way through it. Call a friend or colleague and chat. Tell them the topic you are working on and get their opinions or ideas. They may be able to offer fresh insight and ideas. Work on multiple projects at one time if you can. Bouncing back and forth between a few topics can keep your mind hopping and will keep boredom at bay. Take a break from you current project and write about something that motivates you. Chances are once you get those creative juices flowing they will continue into your next project. Make yourself a schedule and stick to it. If your schedule says 500 words by noon, write your 500 words and stop. Even if you don’t have a project going, by writing daily you will stick to your schedule and keeps your imagination going. If you write from home, which most of freelance writers do, make a quiet time and treat it like a real job. If you have young children at home, write while they nap. Let your answering machine be your secretary. If it is important they will leave a message. Most importantly remember why you started writing in the first place. Even the best of the best have gotten writers block at one time or another. 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. |