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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.
Copyright law Understanding Copyright Law Copyright law is a set of laws that is used to regulate things such as movies, plays, poems, musical compositions, drawings, paintings, sculptures, software, photographs, sculptures, literary works, choreographic works, radio broadcasts, televisions broadcasts and more. Copyright law is only regulated to cover the manner or form in which the information or material is expressed. For instance, it does not cover the idea or facts which are represented in a work. In instances where a copyright does not exist, patents or trademarks may be in place which can impose legal restrictions. Copyright law states that the holder of the copyright has the right to make copies or reproduce the work to sell. They can also export or import the work, create derivative or adaptation of the original work, display or perform the work publicly and assign or sell the rights to someone else. Copyright law is set up to protect people from having someone do something with their copyrighted work or material. Someone that has a copyright may choose to exploit their copyrighted work, or they may choose not to. Many people debate whether copyright law and copyrights are moral rights or merely property rights. It is important to note that in the U.S. copyright law covers protection for published and unpublished works. Copyright law protection covers a work from the time it is created in a tangible form. The author or creator of the work immediately holds the copyright to the work and it is the property of the author or creator. No one else can claim copyright to it, unless the original copyright holder (the author or creator) gives or sells the rights to another person. Many people fail to understand that merely owning or possessing a work does not give them the copyright to it. Just because you have ownership of a copyrighted work does not mean that you own the copyright. Likewise, if you copy someone’s work and list their name on it, you are undertaking copyright infringement. Many people also fail to understand when copyright protection is secured. The moment a work is written or created and it is in physical tangible form or recorded it falls under copyright law. While it is recommended to register your work through the Copyright Office, if your work is not registered and someone steals your work, they have violated your copyright. Using a copyright notice is not required by law. However, many recommended that the copyright notice or symbol be used so remind the general public that the piece is under copyright. Anything that is created after 1977 is protected by copyright law for the lifetime of the author of the creator, plus an additional 70 years after the creator’s death. The public domain is a good source of information that is no longer under a copyright or work that was never under a copyright to begin with. Virtually all works that were created or published in the United States prior to 1923 are said to be in the public domain. Things that can be found in the public domain that are free of copyright law generally include generic facts and information, works that have a lapse in their copyrights (this encompasses works that were created prior to 1978) and materials and information put out by the United States government. In addition, you may find works in the public domain that are free of copyright law because it has been dedicated to the public domain. Learning How to Become a Writer in Three Steps (how to become a writer) Becoming a writer is hardly a simple feat. To become a writer a person must practice and work hard to become a writer. It can be said that many writers are writers, but few of them know how to become a writer. The label “writer” is just simply a label, it is all the hard work and determination of reaching that status that truly gives the writer that name, and makes them worthy of the title. There are three simple steps that any writing can take that will give the title of “writer,” while making them worthy of it. The first step to becoming a writer is to claim yourself as a writer. Many writers believe that they cannot be known as writers until they are published, but this is not true. Anyone who thinks of themselves as a writer, and writes on regular basis should title themselves as a writer. Many unpublished writers have the habit of saying they want to write, or saying that they write, instead of saying “I’m a writer. When learning how to become a writer, it is necessary for writers to realize that you don’t have to be published to be known as a writer. Although, it may seem ideal for introductions and make it easier for other to see you as a writer, being published does not make one a writer. Writers should see themselves as people who write, and not as people who write for a living. For most writers, being published is validation of their status as a writer and even a path to success, but there are many published writers who are not very successful, famous, or rich. However, being published is a great way to show your work to an audience, and gain recognition, no matter how big or small. On the path to becoming writing there are many who lose sight of the fact that they don’t stop writing once they are published, so it is not wise to only write to be published. There are many ways to claim yourself as a writer, and in this step to learning how to become a writer there are smaller steps that help you proclaim yourself as a writer. First, say the words aloud to yourself, and repeat them as many times as possible until they are believable to you and others around you. Next, find a specific place for your writing, which can be a room, section of a room, or a studio. It is also important to make the “writing space” as comfortable as possible, and to make it viable to your writing needs. Then, it is important to get the proper writing tools, such as pens, pencils, notebooks, and a computer that is used specifically for your writing. Aspiring writers can also find lessons on how to become a writer in style books, which should be kept as a writing tool also. It is also helpful to befriend other writers, and read their work and others as a writer and discuss passages of books or chapters with other writers. The second step to becoming a writer is to make time to write. When learning how to become a writer, novices will always be advised to make time for their writing. Many aspiring writers usually mess up on this step, and although they want to be writers they slack on how much they write, so many writers are left with unfinished works. It is important to set aside a particular time or day for writing and to stick to that schedule, because deviance from a writing schedule usually means unfinished work. The final step to becoming a writer is by far the simplest. To become a writer it is imperative that you write. Writing is the simplest step to becoming a writer and the most important step. When learning how to become a writer, you must take some time out and write. |