Archive for July, 2010

Php And Mysql Programming Security

Choosing php and mysql as programming language for a website is not enough. With open source coding being one of the inherent properties of php mysql development, securing your codes becomes essential. So when one allows the users to upload files on the website, then security is definitely at stake.

PHP Programming Protection

While it is not entirely possible to protect your site, yet there are few precautions that you can incorporate for better protection of PHP programming. Some of these are:

• You should check the referrer, for being sure that the information sent is from your website and not an outside source. Since, there are maximum chances of the information being fake.

• Restriction of the type of extension files being uploaded on the website is yet another method of security check.

• Renaming files is another way in which the program can be secured. This procedure involves the checking of double-barreld extensions like yourfile.php.gif.

• Changing the permission command for the upload folder so that files within it are not executable.

• All the alterations created by the user should be allowed only when they ‘Login’ into the database. On the other hand the owner of the site should always keep a close watch on all files being uploaded and then make them live.

Mysql Programming Security

Another aspect in php and mysql web development is the protection of the mysql libraries. Therefore, the most important aspect involved in protecting the mysql program is the security of the entire server host.

Securing MySQL is very essential for the smooth running of the website. This is based on Access Control Lists and SSL-encrypted connections, for protecting the php mysql web development program from random users visiting the website.

Some of the vital things to be considered for online site protection are:

• Accessing of the mysql database should not be allowed for any and everyone.

• Privileges to the users should always be accompanied with some restriction. If one can easily connect to the server without any ‘login’ then the security level code of the MySQL server should be rechecked.

• The MySQL database should be void of plain-text passwords. Use programs like MD5 (), SHA1(), or some hashing function for complete protection.

• Do not choose passwords from dictionaries, since they can be hacked easily. Use programs that break the passwords.

Therefore, the successful development of a website through php and mysql web development is complete only when the site owner consults a professional programmer. They expertise in the optimization of the MySql hosting database. This program is dynamic in nature and is an effective tool in the creation of browser-based applications.

5 Ways To Find Cheap Used Laptops

There are many reason why one would want to buy cheap used laptops, the main, and most obvious reason being that a new laptop is simply too expensive. If your goal is to find at http://thetechboy.com/2006/06/21/5-ways-to-find-cheap-used-laptops/, then take some time to do the research, and you will be sure to get a great deal. I will detail 5 ways you can use to locate the right used laptop that suits your needs, and price range.

One of the first steps in your research should be to get on the Internet and begin your search. Your first stop should be eBay. Unless you’ve been living under a rock for the past few years, you already know that eBay is an auction site where you bid for items. It’s also a great place to find hard to find items such as, a piece of toast with a religious icon burned into it, or a clip Elvis’s sideburns. But, it’s also a great place to find inexpensive used equipment, i.e. laptops.

Once on eBay, you can do a quick search by typing “used laptop” into the search function. You’re sure to find hundreds of selections, and name brands too. Spend some time there conducting your research. You don’t have to bid right away so take your time. Compare prices, and look for sellers with good ratings. The higher the rating, the more reputable the seller.

Another place to find used laptops is Amazon.com. Amazon is not only a great bargain store that sells new items—you can also find used items for sale at a great price, often a lot cheaper than their respective new items. If you’ve used Amazon before, then you’ve probably seen the links “new & used.” By clicking on this link when you do a search, you’ll be able to see both options. But of course we’re interested in used. You’ll be given the prices for the used items, as well as its condition, and the rating of the seller.

Still another stop you should make before concluding your research is Craig’s List. This website is much like a newspaper classified section in its apparent simplicity. But don’t let that simplicity fool you. Do a search for “used laptop” and you will find a huge selection. You can even choose by location to find something local, or you can opt to expand your search to other regions if you wish. One bad thing about Craig’s List is that it doesn’t include a seller’s rating, so you have to be careful. One way to avoid being scammed this is to stick to buying locally, where you can have potential face-to-face interaction with the seller.

One more place where you can try to find cheap used laptops is Overstock.com. Although this site won’t yield as much of a selection as eBay, or Graig’s List, and perhaps even fewer than Amazon, it’s still a good place to look. You may find something in there you didn’t see in any of the other sites, so it won’t hurt to look.

You don’t have to limit your search to the Internet. You can also try doing a bit of off line research. Look in your local newspaper and see what turns up. Often times, some people will opt to sell their used computers by placing ads in the newspaper, so you may be pleasantly surprised by what you find. Try the Sunday paper since it usually has a larger classified section.

There you have it—5 ways to look for cheap used laptops. By doing some thorough research, you’re sure to find a great deal. With all of the selections you’ll have at your disposal, you’ll be able to find a laptop that has the features you’re searching for, at a price range you’re comfortable with.

Bluetooth Wireless And GPS Systems

Bluetooth Wireless is one the most asked about and requested capabilities for GPS Systems. There are many models of GPS devices, which now have Bluetooth Wireless functionality. These models include:

·Garmin Nuvi 360
·Garmin StreetPilot 2820
·Garmin StreetPilot C550
·TomTom One (Tri-Lingual)
·TomTom Go 510
·TomTom Go 910

Bluetooth wireless provides hands free availability to a wide variety of technology products. Bluetooth is all the rage with computers, cell phones, PDAs and other handhelds, printers, and now GPS systems.

Bluetooth Wireless technology has the ability to do a wide range of things. With Bluetooth, you can use a Treo Smartphone for wireless headset calls, connect to the internet with a better connection through your cell phone, connect your computer to the internet through wireless technology, and send messages to others. These things have nothing to do with your GPS system, unless it works through a laptop or PDA.

One of the primary GPS functions with Bluetooth enabled is wireless productivity when you download maps and directions. With Bluetooth, gone are the days of having to connect to the Internet the old-fashioned way (through a computer). You can now browse for the map of your choice and download it directly through your GPS unit. That is just one of the many marvels of Bluetooth technology.

Additionally, some of the Bluetooth-enabled GPS units, such as the Garmin Nuvi 360, have the ability to make phone calls. The GPS unit has a built in speaker and microphone. With Bluetooth technology enabled on the GPS device, the user can make hands free phone calls through the mobile phone service. On the Garmin Nuvi 360, making calls is a piece of cake. All you have to do is touch the Nuvi screen, dial the number, and speak into the microphone. It is as simple as that.

The Nuvi has a phonebook as well as a phone call history storage area. You can use this to dial if you prefer to use a number you have stored in your GPS system. However, there is more to Bluetooth than simply using it to make phone calls and download directions.

Your ability to connect multiple devices to one another has become increasingly simple. Maps from your GPS can be sent easily to your computer, cell phone, palm pilot, and even another GPS system with Bluetooth! When you enter your home, your Bluetooth enabled cell phone emits a signal, which allows your home phone to “sense” your presence. All calls from your cell phone are re-routed to your landline now that you can answer the phone. With all your technological devices working together thanks to Bluetooth, your life can run a lot smoother. You no longer have to flip between computer, phone, PDA, GPS Unit, and so forth, with little to no effort or worry about losing information.

Essentially, Bluetooth makes your life easier, and your GPS capabilities are extended beyond anything you thought was possible for a GPS Unit.