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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.
Proctor and Gamble Great at the Freebie Thing Do you have a favorite manufacturer that you like to tap into for free product samples and coupons? For those in the know, the Proctor and Gamble Corporation is one of the best companies for getting your share of freebies. This popular manufacturer is well known as the creator of many fine household products. For freebie hunters, the Proctor and Gamble Corporation are known as one of the most reliable sources for awesome freebie deals and promotions. Here are some hints and tips at become at an ace at getting freebies from your favorite manufacturer. Get to Know the Proctor and Gamble Corporation for the Best Shot at Great Freebies If you want the best shot at getting the best freebies from Proctor and Gamble, you will find that they are very generous with their free samples and coupon freebies. But you will have to take the time to know the company. Peruse their website and get to know their promotion schedule. 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Read the fine print on the promotions. Most will only be available to United States residents. However, international customers do not have to despair. Simply look for the global link on the main page. This will connect you to other pages that offer you pertinent promotions for your country of residence. For the most part, Proctor and Gamble has established itself as a worthy generator of freebies, coupons and sweepstakes offers. Chances are that you will find your freebies in the mail within a few short weeks of making your initial request. Are There Any Risks Associated with Getting Proctor and Gamble Promotions? Some people are wary about handing over their personal contact information to a company. If this is a concern with you, make sure that you read the company's own privacy policy. As a general rule, you should avoid making requests and giving personal information to companies that do not offer you easy access to their privacy policy. Make Allies in the Workplace to Boost your Own Employee Status A pleasant work environment can go a long way. Having allies in the workplace that work with you, opposed to against you, can create an enjoyable calm at your place of employment. While everyone is not going to be best friends in the workplace, the ability to get along is very important. This can be more challenging with some people than others. However, typically when there is a real bad apple in the mix, they tend to weed themselves out with complete alienation. With that in mind, make allies with as many of your co-workers as you can. A healthy work environment makes the actual work go much smoother. If you want to gain allies at work treat everyone with respect. Employees that are known for their fairness and respect for others are the ones that people trust. If something goes wrong on the job, the boss and other employees know that they can get the right version of the situation from the employee that is kind to everyone. You do not have to like people to be kind to them. Co-workers that you do not like personally should be the ones that you greet and discuss work issues with. Other than that, you want to steer clear of your least favorites. The same is true for bosses that are on your least liked list. Simply limit contact to business material and you will cut down on the chances of having altercations. Nothing ignites work hostility more than employees that do not do their share of the work. If you want to have allies in the workplace, be sure that you are doing your job. You will not have to force the issue if you are doing what you are supposed to do. Your co-workers will like having you around and will be pleasant if you are completing the work you need to do. Don’t gossip. This is one of the major ways to create dislike in the workplace. Spreading rumors, or even truths that were confessed behind closed doors can keep the office on edge. If you are the confidant of someone at work, do not take the information they have shared with you and share it with others. If co-workers come to you and bicker about one another, do not chime in. If they are complaining to you about someone, they are complaining about you to someone else. Politely listen and move on. Remember your manners. Sometimes things get hectic at work and we forget our manners. We find ourselves in a hurry, throwing reports at the secretary or interrupting someone’s phone conversation. Try to compose yourself and be polite. Do not forget your manners simply because you are at work. Put forth extra effort to get along with your co-workers that are not easy to get along with. Personalities are going to be in conflict occasionally. There is nothing wrong with being opposed to someone and their views of the world. However, if they are your co-worker or boss, you need to not let that get in the way of you communicating with them. Allies do not have to necessarily be friends. Instead they should be people that are aligned with you because of the job you do and the way that you treat people. Employees that are able to form alliances at work will have a much easier time getting through the day. Also, if something happens on the job and you need help, co-workers will be much more willing to help out if you are someone who is well liked. With that in mind, it is worth your effort to try to gain allies at work. |