Welcome to www.antones.net
|
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.
Check Download.com for the Best Free Security Software Around With viruses, spyware, adware and hackers threatening on every corner of the internet, it is essential that especially internet users protect their PCs as best as they can to not loose their files or even their whole PC. Buying security software at a local computer store can be very expensive, but protecting the PC does not necessarily have to cost private persons anything at all. Just by checking what for example download.com has available, computer users might be able to save as much as 50-100 Dollars and still be able to protect their PCs adequately. One part of the web page called antivirus, firewall and spyware offers different links to downloads from companies that help protect PCs from any harm. Most of the programs offered on the web page are free for download. Some of the programs are antivirus software, which generally will scan the PC according to your settings for example once a day. When the software finds a virus in any of the files on the PC it will put out a virus alarm in form of a message box. The PC users then have to decide in which way the PC should be cleaned. Some antivirus software will offer to delete the file, others save it in what is called a virus vault, where the virus cannot attack other files on the PC, while others clean the file if it is cleanable. Other programs offered on the page are firewalls. Firewalls protect the Pc from any attacks form the internet, such as hackers hacking into your PC, Trojan horses, viruses and more entering the PC is not possible, when a firewall is used and set to the proper security setting. Using a firewall is a good idea for any PC, but it is important to know that the way the firewall works it might also cause a few problems with software on the Pc that enters the Internet. Therefore firewalls need to be configured right to have a smooth running and protected PC. Many of the firewalls offered on this page are free for download, but generally most PCs have a built in firewall in their operating system that just needs to be activated or configured. The third major kind of protection software one can download form this website is spy or ad-aware detection. Spy and ad-aware are programs that are malicious for the PC user. These kind of malicious little programs are installed without the users proper knowledge and intercept or partially take control of the interactions of the PC with the internet without the users consent. Spywares do not just monitor the internet interactions, as the name suggests, it also collects personal information, can install additional software that will take over the control of the browser activity, accessing websites that will allow for example viruses to enter the PC. Spyware is also often called privacy-invasive software and something a PC as well as a user needs to be protected from. The download page does not only offer many of these programs for free, it will also offer patches and update files for these programs. Even though many of the companies offer the continuous automatic update to protect a PC from new viruses and other malware, some PC users prefer not to have an automatic update and download their own updates whenever they deem necessary. Whichever way one likes to update the PC, it is most important of all to know that PCs need to be protected and users do not need to spend tons of money in order to do so. Free programs available for download on download.com will give a PC similar protection and keep files and identity safe. Copyright infringement insurance coverage Do You Need Copyright Infringement Insurance Coverage? People are creating more content now than ever: eBooks, blogs, web journals, MySpace Pages, Podcasts. Every where, in abundance, you?ll find people sharing their ideas and opinions, and creating entertainment for everyone. However, with all the resources available to us, how can we be sure that we?re not violating copyright law? Should we have copyright infringement insurance coverage? Copyright infringement is the act of using someone else?s copyrighted material ? in any form ? in our own use without proper allowances. In order to be allowed to use the material, all we may need to do is ask and give the owner royalties, attribution, or some combination thereof. But, occasionally, it?s easy to forget that we need to ask before we use something without rights. You?re allowed to use copyrighted works in a number of forms ? educational and instructional uses, parody, commentary, and news are all forms where you don?t need to ask for use ? it?s considered fair use under the copyright law. However, even if you?re using the item of copyright in one of these forms, it would still be wise to inform the owner of your intent before using it. Of course, you should contact a copyright lawyer before using anyone else?s work(s), but to keep yourself safe, copyright infringement insurance coverage may be a good bet for you and your colleagues. Should you have copyright infringement insurance coverage? Although this is a new concept, it is one we should look at closely as creators. A well-known adage ?there is no completely original idea? comes into play in our current age ? while it?s entirely possible for us to have a thought, and act upon the thought ? there may be, somewhere, someone who has created close to the same material as we have, without our knowing. Did we create it first? Did they? Would they be able to sue you for copyright infringement? These are the things to ponder as we create our media ? should we have copyright infringement insurance coverage? What is copyright infringement insurance coverage? This coverage would be insurance for covering the cost to settle lawsuits brought in regards to copyright infringement ? it would be a small amount of coverage. For example, you would only need around $5,000 to cover the court and attorney fees associated with a case, if a suit were brought against a person. Theoretically, you would only pay under $25 per year and would cover up to the five thousand dollar settlement should a case be brought against you. How would you use copyright infringement insurance coverage? Hopefully, you?d never have to use your copyright infringement insurance coverage. But, it would be there in case a charge was ever brought to you on copyright infringement With so many of us ? bloggers, columnists, podcasters ? creating our own content, it?s in our best interest to consider something such as this. We may not always get the rights we need in order to use a work, either whole or in part. As you can see, it can be critical to have copyright infringement insurance coverage as a blogger, podcaster, columnist, or other content creator. It?s imperative that we know our rights to use something (or to NOT use something) and what we can do to protect yourself. Copyright infringement can carry a serious penalty, and insurance coverage is a good way to insure that you?re protected from hefty fines. Talk to you current insurance provider and copyright lawyer to find out what you need to do, and what you need to know, to get proper insurance for your needs. |