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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: 184.108.40.206
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.
Important Steps to Follow in Creating a Professional Digital Identity for your Job Search Having a professional digital identify is essential in finding new business or employment. Everyone can benefit from having a polished professional digital identity. It is key to advancing in any career. Of course, how you present yourself digitally depending on what type of career advancement you are going for. If you are starting a new business you will need to have a stellar website. A professional should consulted so that you have the best website possible. If you are interested in securing a new job, you can probably build your own website or just post your resume and portfolio. Trying to land an interview is much easier than striking out on your own so it takes a little less effort. However, no matter what your career aspirations are a professional digital identity is important. If your professional digital identity is lacking in credibility spend some time and effort improving it. A healthy professional digital identity will help you get the job you desire. Instead of spending money on business cards, invest in presenting yourself well on the web. People can always get in touch with you on the web. Business cards get lost in the shuffle of day-to-day paper accumulation that most people acquire. Locate all of the social networking sites you can. You can never be too well represented on the web. Of course, people like to shake hands and meet you in person. When circumstances permit, set up lunches or coffee dates to discuss projects or networking opportunities. For entrepreneurs, it is wise to stay well acquainted. The type of business you are in will influence what you have in your portfolio. If you are striving to build an online presence for your own personal business, have plenty of samples on your site. If you business is not one where you have samples to show, have coupons or special offers posted. Create a strong professional digital identity and you will attract more sales. Whether you are networking or building up business for yourself, you need to have a professional digital identity that people can respect. Provide a number of ways for people to get in touch with you and keep your information updated. Do pro bono if necessary. Do some things for free to gain exposure. First impressions have a big influence on what people think about you. In the past people were limited to physical or phone impressions. These days the way that employees first get to know most candidates is through their digital identity. A bad web site or a sloppy portfolio online can ruin your chances of getting a job. Make sure that your professional digital identity is well developed. One of the major mistakes people make when it comes to digital identity is registering for networking and social sites and posting less than favorable pictures and comments. Some employers check MySpace and Facebook to try to get a clear picture of the candidate they are interviewing or deciding whether or not to work with. If your Myspace page is full of pictures of you in your scantly clad bathing suit their decision to hire you or not becomes very easy. Do not use your real name to register for these types of sites. Or if you do, use the site in a professional manner. Set up your Myspace page in an attractive and professional way. Friends will be able to reach you but employers will also view you in a professional manner. A great way to present yourself well digitally is to have your own website. Upload your resume and include information about your work history. Employers will be able to review your work history more extensively making them more inclined to contact you.
Ten Top Things That Make for a Great Employee If there is one thing that everyone can agree upon in the job market it is that great employees are hard to come by. Whether you are an employee yourself and you feel like you are always pulling the weight of the other people in the office or if you are a boss who is wondering how you can actually get some people on board who can do the job, you know that great employees are at a premium. But what exactly makes an employee great? These ten top things are guides to bosses looking for greatness in a new hire and for employees trying to get noticed in the workplace and be the kind of employee who has the potential to move up in the company chain. The first thing that makes an employee great is that they are always dependable. Great employees do the job they are supposed to do every time, and no one has to worry that they don?t deliver the goods. A great employee can be counted to always have their work done right, when it is supposed to be done ? it is a forgone conclusion that they will, and no one else has to spend any time worrying about it. The second thing to look for in a great employee is that they are a team player. A great employee isn?t one who is constantly looking for attention or hogs the spotlight. Instead, a great employee works with everyone else to make sure that the things that need to get done do get done, for the good of the company. The third mark of employee greatness is that they know how to take direction. Great employees know how to take criticism, direction and advice gracefully and make it work for them when doing their job. Fourthly, a great employee can be trusted. They don?t spread office gossip and they don?t dish company dirt. Likewise, they always tell the truth to their employer, even if it lands them in hot water. The fifth sign of greatness in employees is linked to the fourth ? a great employee always guards the confidential nature of their business dealings and protects everyone?s privacy. The sixth thing that makes an employee great is that they participate in the day to day life of the office. They don?t bow out of meetings or skip the office birthday celebrations. These things may not be a fun part of working life, and everyone involved knows that everyone else has some place they would rather be ? but a great employee wouldn?t be any place else. In seventh place comes the fact that a great employee gets along with other employees. Every office has one person that is in everyone else?s business and talks to loud on the phone and generally stirs things up and gets under everyone?s skin. This kind of employee zaps office morale ? a great employee is a good co-worker to everyone. The eighth thing a great employee has is good working skills. It may sound obvious, but a great employee has the abilities needed to do their job, and they constantly seek ways to improve, like going to training seminars or seeking further education. Great workers have great skills. The ninth thing that leads to employee greatness is tact and decorum. If there is a problem in the office, a great employee doesn?t make a scene in front of everyone else. A great employee will deal with such issues with privacy and diplomacy. Further, a great employee doesn?t tell tasteless, political or religious jokes, nor do they send emails that tell these kinds of jokes. Last but not least, a great employee has a great attitude. Bad attitudes bring everyone down. A great employee helps make work great for everyone else by having a good spirit about their job.