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Web Hosting - Domain Name Changes and How They Affect You New domain names are registered all the time, and ones previously registered expired. Sometimes that's the result of simple neglect. The owner of the name chose not to renew his or her ownership, so the name became available for someone else to use. In rare cases, a highly original mind managed to think of a new one. In the other common scenarios, someone chose to just let it go or sell it. When you choose to change your domain name, there are actually two separate steps involved: releasing the old name, and adopting the new one. But, just as the postal system can have difficulty forwarding your letters when you change your personal name, changing your domain name brings certain difficulties. One of the most prominent is the fact that any name change requires a change to thousands of DNS Servers around the globe. DNS (Domain Name System) is the set of software/hardware components that allows domain names to map to IP addresses. IP addresses are what are actually used 'under the covers' when one computer communicates with another. Note that there isn't always a 1:1 correspondence between a name and an IP address. One IP address can serve multiple domain names and one domain name can have multiple IP addresses. For the sake of simplicity, we'll stick to the common case here. DNS servers around the world maintain internal databases that match the name to an IP address. Not all servers have all pairs of names/addresses. A series of complex routines allows a request to be forwarded when the particular DNS server doesn't have a needed record. When you acquire a domain name that used to be associated with a given IP address, the odds of you acquiring the same IP address are extremely low. In the unlikely case, for example, that you acquired the domain name yahoo.com, you would almost certainly not get the IP address that was matched with it (unless you bought the Yahoo! company). So, as a result of the change, the name/IP address pair is no longer what it was. A similar circumstance exists when you retain your IP address, but want to change the domain name associated with it. In either case, the pairing has changed. The catch is this: when the change takes place, those DNS databases are not all updated instantaneously around the world. Even apart from the limited speed with which computers and networks operate, (and neglecting the human factor if/when the change is made manually to more than one server) the reason is something called caching. In order to communicate efficiently, DNS servers are designed to assume that changes will be relatively rare. Just as with the postal system, you don't move your address or change your name every minute. Since that's true, in general, the name/IP address pair is cached. A cache is a set of stored information that is reused so that fresh information doesn't have to be communicated with every request for a web page or data. A chain of DNS servers pass requests to the last known address. There is usually more than one system between your computer and the server you want to communicate with. Most of the time, that's your current name/address. When you change the name, that pair is no longer valid. In order to propagate the new name/address pair (so the terminology goes), that cache has to be refreshed. Something similar happens when you establish an entirely new name. That name is first associated with an IP address and that pair has to be communicated to DNS servers around the world in order for you to be able to reach any one of them at random. But DNS servers don't do that until they are requested to do so by your action of asking for information from a remote server. Because of that, but chiefly because of caching, it can take quite a while for the new pair to become known around the Internet. Caches can expire and get refreshed in a few minutes or a few hours. It varies. That time can be as short as an hour or less, if the path between your computer and the web server is very simple and only one DNS server needs to be updated. Or, it can take up to 48 hours or more. Though the 'official' range is often given by registrars as 24-48 hours, the average is closer to about six hours. But that's an average. The actual time in any given case can (and does) vary widely. In the meantime, a number of effects can occur. The most obvious is that, since the name/IP address pair can't be resolved properly, you don't reach the server you want. Your browser points to the old one (in the rare case it's still accessible by that name and address), or it simply reports there's no such name at that address. So, when registering a new name or buying an old one, you should establish the site, but not advertise it for at least a couple of days. Better to wait to get visitors than to turn them off by being 'not at home' when they call.

Evaluating your Free Offers of Stuff Getting free stuff can be a lot of fun, and for many people, the hunt for freebies is as fun as actually enjoying the free products themselves. There is a dark side to freebie offers, however. Many scam artists have come to realize that pretending to offer free things is a great way to trick people into handing over sensitive information about them than can be used in identity theft operations or even bilk them out of cold, hard cash. For that reason, it is important to make sure you know how to stay out there when you’re looking for free offers. There are some things you can do to make sure you freebie hunting only brings you good times – these common sense rules are a great place to start. You’ve heard it a million times before – if it sounds too good to be true, it probably is. The reason you have heard it so many times is that it almost holds water. Think about the reason that companies give away free things. They’re usually not doing it for charity. They want you try to their products in the hope that you will come back to them as a paying customer in the future, and they’re doing it to build good will for their company over all. They’re definitely not doing it go broke. So consider whether the freebie offers you come across make sense according to these criteria. Does it make sense that a company will give you a free bag of their new flavor of chips or a trial size jar of their new face cream? Sure it does, because if you like it, you may buy these products in the future. Does it make sense that a company will give you an all expenses paid, two-week first class trip to Bali for you and ten of your friends? Not so much. Don’t waste your time on these too good to be true freebies – they may end up costing your big time in the long run. By the same token, the more outlandish an offer sounds, the more you have to look for the small print. Sure, maybe the hotel chain is willing to give you a free weekend in their beachfront hotel. The small print in the offer might say that you have to agree to spend 10 hours a day at a sales seminar or that the free weekend is yours after you pay for a two week stay. One particular airline ran an offer for a free coach class plane ticket from New York to London. The small print said you had to buy two, full price first class tickets on that same route before you could get the free on – at a cost of around $8,000 per ticket. Before you jump, make sure you get all of the details. Freebie offers that actually require you to shell out some money are very tricky. Sometimes they are legitimate – after all, if you are accustomed to paying full price first class airfare, a free coach class ticket can be a real score. But many times, when you have to pay to get something for free, that is a red flag that a scammer is at work. You should never send money, even for postage, to a company that you don’t know. Also, keep an eye on the costs for things like postage even if you do know the company name. If they’re asking for $50 postage to send you a free magazine, then you know something is up. Lastly, beware giving out too much personal information. There’s no reason a company giving away free shampoo needs your bank account details. Protect your private info and if you’re unsure, move on to the next freebie offer.

Online Writing Labs: You have One Available for You (online writing labs) There are numerous colleges and universities around the United States and the world that offer online writing labs. The labs are designed to offer help and instruction for any writing matter. Most Online writing labs are only available to the students of the offering college or university, but there are a few that are open to the general public. Virginia Tech has an online self help section and email help available for questions you have about grammar. The online writing labs are beneficial to both the writer in need of the help and the person helping them. The helper or tutors are usually graduate students working for their degree they benefit from the additional teaching practice. The students are getting proofreading, critiquing, and feedback along with any help they may need. The online writing labs were created by the schools to offer extra help to their students in their writing. They offer support in most areas of writing including choosing a topic, grammar help, revising a draft, and editing. They provide tutored help in these areas to students and faculty. Many online writing labs are set up to help you in three ways; online self help, email support, and one on one personal support. The online self help applications are available 24 hours a day. For the email support you email in your paper or project and you will receive a response with in 24 hours. The one on one personal support is a great way for students to learn how to do their own proofreading and editing. The tutors will help show the students what to look for and how to find their own mistakes. This is a great opportunity for help with someone other than a teacher. Even though the online help is available student are encouraged to use the writing lab tutors on a regular basis to improve their writing skills. Purdue University has an online writing lab they call OWL. It offers a wealth of information that virtually anyone can use. They offer a highly detailed step by step instruct of the writing process and huge section on professional, technical, and scientific writing. A section in job search writing that walks you through everything, from your academic coversheet to writing a personal statement, step by step. General Academic writing and research and citation help. This is the best site for offering its advice absolutely free. This site definitely deserves to be bookmarked on your computer if you are a serious writer, a student, a teacher, it really doesn’t matter. The University of Richmond has a program they call Writing Center. Although not as complex as Perdue’s they offer online self help topics for writers. Starting with the writing process to grammar and punctuation, it is another option for you. The University of Wisconsin has the Writing Center that offers some help with the basics. One thing to keep in mind that many of the universities and colleges that offer these many take them offline in between semesters and on breaks. If you are a student, many of you have an online writing lab available at your school or one that reciprocates with your school. Though the general public have self help online help available to them, chances are your school will offer some sort of one on one help to guide you through your work. Check it out it could be very beneficial to you. If you don’t have one available, it is highly recommend checking out OWL at Perdue or search the Internet. There are a lot of self-help online writing labs available to you.