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Web Hosting - The Internet and How It Works In one sense, detailing the statement in the title would require at least a book. In another sense, it can't be fully explained at all, since there's no central authority that designs or implements the highly distributed entity called The Internet. But the basics can certainly be outlined, simply and briefly. And it's in the interest of any novice web site owner to have some idea of how their tree fits into that gigantic forest, full of complex paths, that is called the Internet. The analogy to a forest is not far off. Every computer is a single plant, sometimes a little bush sometimes a mighty tree. A percentage, to be sure, are weeds we could do without. In networking terminology, the individual plants are called 'nodes' and each one has a domain name and IP address. Connecting those nodes are paths. The Internet, taken in total, is just the collection of all those plants and the pieces that allow for their interconnections - all the nodes and the paths between them. Servers and clients (desktop computers, laptops, PDAs, cell phones and more) make up the most visible parts of the Internet. They store information and programs that make the data accessible. But behind the scenes there are vitally important components - both hardware and software - that make the entire mesh possible and useful. Though there's no single central authority, database, or computer that creates the World Wide Web, it's nonetheless true that not all computers are equal. There is a hierarchy. That hierarchy starts with a tree with many branches: the domain system. Designators like .com, .net, .org, and so forth are familiar to everyone now. Those basic names are stored inside a relatively small number of specialized systems maintained by a few non-profit organizations. They form something called the TLD, the Top Level Domains. From there, company networks and others form what are called the Second Level Domains, such as Microsoft.com. That's further sub-divided into www.Microsoft.com which is, technically, a sub-domain but is sometimes mis-named 'a host' or a domain. A host is the name for one specific computer. That host name may or may not be, for example, 'www' and usually isn't. The domain is the name without the 'www' in front. Finally, at the bottom of the pyramid, are the individual hosts (usually servers) that provide actual information and the means to share it. Those hosts (along with other hardware and software that enable communication, such as routers) form a network. The set of all those networks taken together is the physical aspect of the Internet. There are less obvious aspects, too, that are essential. When you click on a URL (Uniform Resource Locator, such as http://www.microsoft.com) on a web page, your browser sends a request through the Internet to connect and get data. That request, and the data that is returned from the request, is divided up into packets (chunks of data wrapped in routing and control information). That's one of the reasons you will often see your web page getting painted on the screen one section at a time. When the packets take too long to get where they're supposed to go, that's a 'timeout'. Suppose you request a set of names that are stored in a database. Those names, let's suppose get stored in order. But the packets they get shoved into for delivery can arrive at your computer in any order. They're then reassembled and displayed. All those packets can be directed to the proper place because they're associated with a specified IP address, a numeric identifier that designates a host (a computer that 'hosts' data). But those numbers are hard to remember and work with, so names are layered on top, the so-called domain names we started out discussing. Imagine the postal system (the Internet). Each home (domain name) has an address (IP address). Those who live in them (programs) send and receive letters (packets). The letters contain news (database data, email messages, images) that's of interest to the residents. The Internet is very much the same.

Preparing Questions to Ask in your Upcoming Job Interview When you get ready for a job interview, chances are you have spent a lot of time trying to guess the questions you will be asked and prepare your answers to them. How will you explain that gap in your work history? What will you say when they ask you why you left your last job? In the rush to make sure that you have all of your answers perfectly prepared and ready, don’t forget to prepare a few questions of your own to ask the person who is interviewing you. Asking questions is an important part of your interview. When you get asked the old “do you have any questions for us” one, it pays to actually be able to come back with a few questions instead of a, “no, I don’t think so.” Asking questions will show that you are engaged in the interview and have done some thinking about the position, plus, the questions you ask will help you elicit valuable information you need when you have to decide whether or not to actually take the job, should it be offered to you. The first thing you should want to find out is why the job is open in the first place. Is the job you are applying for a new position? That means you can expect to have a lot of transitional bumps along the way as you are integrated into the company. If the job is not new, and the person before you was fired, then you can expect things to be in a state of disarray when you take over and that you will have to spend a lot of time up front cleaning up spilled milk. If the job is open because the person who had it before you moved up in the company, then you will know that this is a job with a lot of future potential. Next, find out a little bit about the person who will actually be your boss if you get the job. Sometimes, this person will be involved in the interview, but often they will not. Finding out how high up in the company chain you will be reporting will help you gauge how important the position for which you are applying is to the company. Also, it helps to know a little bit about the personality type of the boss to be. If you like to keep your head down and do your work, and your potential new boss is one of those “wacky” types, then you may want to look elsewhere. From there, ask about the kinds of responsibilities you will need to take on board right out of the gate. When companies are hiring for a new position, they usually have a few ideas about what that person will need to start working on right away. Getting a clue about your first project will help you decide if this job is right for you. This is also a good time to ask the interviewer about their job and why they like working the company. You may find out that this really could be your dream job, or you may end up sensing from your interviewer that you should run away, fast. Last but not least, ask your interview when you should follow-up on your interview. Don’t open the door for a “don’t call us, we’ll call you” kind of interview closing. Let the interviewer know to their face that will be making the effort to contact them again. You may get the vibe from your interviewer that the job probably will be going to someone else, so you can move on quickly, or you may end up being offered the job on the spot. Either way, you will have opened the lines of communication to take the next step.

Copyright Infringement Play It Safe: Making Sure You're Not Committing Copyright Infringement Copyright infringement is not an easy thing to explain. While it may seem as simple as not using someone else’s work, it’s not that easy. Thanks to the Electronic Frontier Foundation, and many other organizations, we have the ability to use others’ works – as long as we use it under ‘fair use’ laws. So what does fair use have to do with copyright infringement, and how can you utilize it? Fair use laws are the conditions in which you can use a copyrighted work without having to pay someone royalties. This includes when you use a copyrighted work for educational or instructional uses, criticism of the work, commentaries on the work, news reporting about the work, teaching on the work (including multiple copies for classroom use), scholarship uses, and research. This is talked about fully in Section 107 of the Copyright Code (commonly called Fair Use) and is available for you to read at your local library. Copyright Infringement in day-to-day life Sometimes, if you’re writing a paper for work or school, or if you are creating a Power Point presentation, you need to use someone’s work that is already in copyright. So how do you use it without committing copyright infringement? All you have to do is ask – the worst they can say is no, right? But, if they do say no, there are several items in the public domain which may help you to finish your project without having to commit copyright infringement. What is the public domain, and how does it relate to copyright infringement? Material that is not copyrighted is considered in the public domain – you cannot commit copyright infringement on works in the public domain. These works include things that the copyright has expired on, or is not copyright-able – such as government publications, jokes, titles, and ideas. Some creators (writers, musicians, artists, and more) deliberately put their work in the public domain, without ever obtaining copyright, by providing an affiliation with Creative Commons. Creative Commons allows people who create materials to forfeit some, or all, of their copyright rights and place their work either partially or fully in the public domain. So, how do I ensure I’m not committing copyright infringement? First of all, if you’re going to use someone else’s material, you may want to check the public domain to see if something is suitable for use, instead of trying to use someone else’s copyright. However, if you can’t find something suitable (and you can’t create something yourself), the next best thing (and your only legal course of action) is to find a piece that is in copyright, and contacting the copyright holder. When you contact the copyright holder, make sure you tell them what you want to use their piece for – whether it’s for your blog, podcast, or report – and ask them if you can use it. You may have to pay royalties, or an attribution in your piece, or a combination of both. The creator may also place many limitations on when and how you can use their material. Follow all these instructions they give you, and you’ll be free and clear to use their work as you want. Once you have permission to use a copyrighted work, you need to make sure you stay within the agreed-upon boundaries - if you veer outside their agreed terms, you may open yourself up for a copyright infringement lawsuit – which can be nasty, costly, and time consuming. If you’re in doubt, before contacting the copyright holder, contact a copyright lawyer to ensure you’re following the law – and protect yourself!