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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.
Why Time Management Makes for a Better Employee Time management is a major issue in the workplace. When time is not utilized efficiently, it leads to sloppy work, missed deadlines, and way too much stress. Employers are constantly seeking ways to teach their employees to manage their time better for a simple reason – a team that manages its time well is a team that is productive and successful. Everyone has done it. You’ve know that there is a big deadline approaching for weeks on end, and you kept telling yourself that have plenty of time. Then, suddenly, it is the day before the project is due, and you haven’t even begun it. You know you will have to pull an all-nighter, and even then you will be lucky to get everything done in time. Your heart is racing, your head is pounding, and you’re cursing your procrastination yet again, thinking about how much time you wasted surfing the next when you could have been doing a little work on the project every day, so it wouldn’t be so overwhelming. The end result of a project like this is predictable. You may get it in on time, or at least close to the deadline, but your work is likely to be sloppy. The rush job you did will be evident to everyone, and if your project involved making a pitch to a potential customer, your time management failure may end up costing your company big money (and costing you a job). As if you were not stressed enough already! If you contrast that performance with one in which you had effectively managed your time, the difference is clear. If you have worked on the project over the entire time span you had to finish it, a little bit at a time, then you would have had time to make sure your work was up to par. You wouldn’t have been scrambling for last minute information to include, and you could have made sure your work was free from little errors like typos or pages that printed incorrectly. Most importantly, you wouldn’t feel like you needed a week long vacation when the project was over, because your stress level never would have hit the roof. So, how do you become a happier and more effective employee by managing your time better? The first thing you can do to become an effective time manage is simple – write yourself a to-do list everyday. Not only does a to-do list help you think through exactly what you need to accomplish so you don’t forget anything in the rush, but it also helps you feel accountable for everything that needs to get done. If you write “spend 30 minutes on the big project” on your to-do list, it is a lot harder to come up with excuses why you can put it off for another day. Your conscience will make you want to get through everything on that list. If it seems like you never have enough time in the day, keep a journal of all of your activities. If you spend 20 minutes chatting by the coffee pot, write it down. After a week, look back over your activities. You may be surprised how much time you actually spend doing nothing. Now that you know, you can reinvest that time more wisely. The last thing is the hardest thing – getting over procrastination. This one is sheer willpower. When those voices in your head start arguing over whether to work on something now or put it off until later, listen to the work now voice. Give yourself manageable goals, like working on something for 15 minutes or 30 minutes, to get started. Once you experience the freedom from stress that time management brings, that procrastination voice will be a thing of the past. Writing Tips for all Styles of Writing (writing tips) Most writing tips you will come across are usually geared towards certain writing topics. You can find fiction writing tips, short story tips, and poetry tips among the different ones. These tips are suitable for any style writer. Setting aside a time to write: You have to choose which is best for you. Some writers prefer having a set schedule. They schedule their days as if they are working a 9-5 job. Or some write in the fly and impulsively. Neither way is right or wrong. It is just a matter of choosing the one that fits your lifestyle and writing techniques. Know how to prevent writers block. It often helps keep your mind fresh and writers block at bay when you write about more that one topic at a time. This can keep the creative juices moving and the brain actively thinking about what the next lines are going to be. Writing about topics you know about or have a desire to know about also help the words continue to flow onto your canvas. Writing daily keeps your imagination open and always running. If the words start to become difficult to create, take a break and change the scenery before they are lost. It is easier to add to ideas already in your head than it is to try and start from scratch again. Another great writing tip is to keep a notebook and pen with you at all times. How frustrating it is when you have this fantastic idea but you forget what it is before you can find a pen and paper to write it down. Or you have a dream and wake up thinking that a great story could come of it and then in a flash it is gone. Set daily goals for yourself. Whether you are on a schedule or an impulsive writer setting daily goals will make sure you reach your intended outcome. Daily goals are usually much easier to obtain than weekly goals. If you do not have an education in writing but love to write it will help your career to learn writing basics. Understanding the different writing techniques and styles or basic grammar are imperative parts in a writers career. There are low cost and even free online course that will lead you in the right direction. Another helpful writing tip is to have a proofreader. This can be a family member, a colleague, or a friend. Every writer proofreads there on work over and over but a proofreader will often pick up things that we miss. The writer of a story knows what they want to say; therefore it is to miss an out of place word because you often read what you know it should say instead of what it really says. A proofreader will read the actual words and let you know whether they make sense or need changed. The research you do for an article needs to be accurate and update. A topic with information can be detrimental to your career. It shows lack of responsibility to find correct information. It shows apathetic writing abilities and reflects poorly on your character. The most important tip that you should know is to know what you are trying to achieve with your writing and knowing what its purpose it. By knowing this you will be able to keep focus on the point of your writing. Whether you are writing a story and try to keep reader enthralled with your characters or a late breaking news article by remember the purpose of your story will help you stay focused and on the right track. |