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Web Hosting - Redundancy and Failover Among the more useful innovations in computing, actually invented decades ago, are the twin ideas of redundancy and failover. These fancy words name very common sense concepts. When one computer (or part) fails, switch to another. Doing that seamlessly and quickly versus slowly with disruption defines one difference between good hosting and bad. Network redundancy is the most widely used example. The Internet is just that, an inter-connected set of networks. Between and within networks are paths that make possible page requests, file transfers and data movement from one spot (called a 'node') to the next. If you have two or more paths between a user's computer and the server, one becoming unavailable is not much of a problem. Closing one street is not so bad, if you can drive down another just as easily. Of course, there's the catch: 'just as easily'. When one path fails, the total load (the amount of data requested and by how many within what time frame) doesn't change. Now the same number of 'cars' are using fewer 'roads'. That can lead to traffic jams. A very different, but related, phenomenon occurs when there suddenly become more 'cars', as happens in a massively widespread virus attack, for example. Then, a large number of useless and destructive programs are running around flooding the network. Making the situation worse, at a certain point, parts of the networks may shut down to prevent further spread, producing more 'cars' on now-fewer 'roads'. A related form of redundancy and failover can be carried out with servers, which are in essence the 'end-nodes' of a network path. Servers can fail because of a hard drive failure, motherboard overheating, memory malfunction, operating system bug, web server software overload or any of a hundred other causes. Whatever the cause, when two or more servers are configured so that another can take up the slack from one that's failed, that is redundancy. That is more difficult to achieve than network redundancy, but it is still very common. Not as common as it should be, since many times a failed server is just re-booted or replaced or repaired with another piece of hardware. But, more sophisticated web hosting companies will have such redundancy in place. And that's one lesson for anyone considering which web hosting company may offer superior service over another (similarly priced) company. Look at which company can offer competent assistance when things fail, as they always do sooner or later. One company may have a habit of simply re-booting. Others may have redundant disk arrays. Hardware containing multiple disk drives to which the server has access allows for one or more drives to fail without bringing the system down. The failed drive is replaced and no one but the administrator is even aware there was a problem. Still other companies may have still more sophisticated systems in place. Failover servers that take up the load of a crashed computer, without the end-user seeing anything are possible. In fact, in better installations, they're the norm. When they're in place, the user has at most only to refresh his or her browser and, bingo, everything is fine. The more a web site owner knows about redundancy and failover, the better he or she can understand why things go wrong, and what options are available when they do. That knowledge can lead to better choices for a better web site experience.

Great Free Gift Idea – How to Get Official Presidential Greetings for a Loved One Are you ready for the most official gift idea ever proposed? Do you know someone who enjoys collecting authentic autographs and memorabilia? Or perhaps you know someone who has a good sense of humor and enjoys a gag gift on those special occasions? If this is the case, you may be interested in a great free gift idea—procuring an official presidential greeting for a loved one. Here is the run-down on how you can get a hold of this awesome gift idea. Believe it or not, getting an official presidential greeting is easier than you might think. Did You Know that the White House Offers Free Greetings? It is true—the White house offers free greetings for those very special occasions. These free greetings are official and recognized by the White House and the Office of the President. However, you should know that there are numerous restrictions to procuring these free presidential greetings. Unfortunately, the White House is not currently able to fulfill all the requests for official presidential greetings at this time. However, if you are truly interested in landing a free and very official presidential greeting for a loved one, it is worth giving it a try. As the old saying goes, nothing ventured, nothing gained. How to Make Your Request for an Official Presidential Greeting How can you go about making an official request for an official presidential greeting? There are several ways you can request a presidential greeting directly from the White House. There are several ways to make your official request. There are three basic routes for requesting an official presidential greeting from the White House. You can make your official request for a presidential greeting through fax, by postal mail, or by filling out an online email form. Although no one method appears to be considerable more effective than any other, some successful recipients of an official presidential greeting swear that you are more likely to receive a response if you put in your official request through postal mail or fax. However, this may just be a hunch, because it seems that it may seem harder to ignore a written request rather than a virtual email request. As with anything important, you will want to make your request for an official presidential greeting way ahead of time. For instance, if you want to request an official presidential wedding greeting, you will want to make your request well ahead of time. What Kind of Official Presidential Greetings is You Allowed to Request? Although there is no set guideline about what kind of greetings you can request, there are many standard issue presidential greetings. These include birthday greetings, 50th wedding anniversary and higher, births, Bar Mitzvahs, Bat Mitzvahs, weddings, scouting awards and others. Official Guidelines for Requesting Your Greetings For the official guidelines on how to request official presidential greetings from the White House, check out the official White House website. There you will find the official guidelines on how to request greetings from the White House, as well as how to extend an official invitation to the White House. In general, here are some things to keep in mind. The White House will only send out official greetings to U.S. citizens. You must provide the following information: name of the honoree, address of the honoree, form of address, date of birth, birthday, wedding or anniversary, and the requestor's name and daytime phone number. Be aware that the numbers of requests you can make are limited on a per day basis. Requests for multiple institutional requests must be make by fax or mail on official letterhead. When can you expect your official presidential greeting? In general, greetings will be mailed in approximately 14 days prior to the event that is being recognized by the greeting.

Web Hosting - Why Backups Are Essential One thing most web site owners have little time for is... anything! Anything other than focusing on their site content and the business or service it supports and the information it provides, that is. That means that administration often suffers, as it frequently must. There's only so much time in the day. But the one thing that you should never let slide are backups. They are like insurance. You rarely need it (you hope), but when you do you need it very badly. Performing regular backups - and testing them - doesn't have to be a nightmare. A little bit of forethought and effort and they can be automated to a high degree. And, they should be tested from time to time. Even when a backup appears to have gone without a hitch, the only way to know whether it's of any value is to attempt to restore the information. If it can't be restored, the backup is worthless. Even when the web hosting company provides the service, there is still some planning involved for the site owner. Hosting companies often rely on one or both of two methods. They backup everything (called a full backup), then backup anything which has changed since the last full backup (called an incremental backup). Of special interest are any configuration files that have been tailored. If you've modified the default installation of a software package, you want to be able to recapture or reproduce those changes without starting from scratch. Network configuration files, modifications to basic HTML files, CSS style sheets and others fall into the same category. If you have XML files, databases, spreadsheets or other files that carry product or subscriber information - about items purchased, for example, or people who signed up for a newsletter - those should get special attention, too. That's the lifeblood of your business or service. Lose them and you must start over. That can break your site permanently. It should go without saying that all HTML and related web site files that comprise visible pages should be backed up regularly. It isn't necessary to record every trivial change, but you can tailor backup software to exclude files or folders. Usually they're so small it isn't worth the trouble. But in some cases those small changes can add up in scenarios where there are many thousands of them. Here again, the backups are worthless if they can't be used. Even if the hosting company charges for doing so, it's worthwhile to test once or twice a year at least to ensure the data can be restored. That's especially true of database backups, which often involve special software and routines. Database files have a special structure and the information is related in certain ways that require backups be done differently. Developing a backup strategy can be straightforward. Start simply and review your plan from time to time, modifying it as your site changes and grows. But don't neglect the subject entirely. The day will come when a hard drive fails, or you get hacked or attacked by a virus, or you accidentally delete something important. When that day comes, the few minutes or hours you spent developing and executing a backup plan will have saved you days or weeks of effort.