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The XP Firewall Isn't Enough
by: Steve Blampied
You might think you don't need a firewall because windows XP has one built in, but read on for a plain-english explanation why this isn’t enough.

Before broadband and cable connections were common most people didn't need a personal firewall because they weren't connected to the Internet for extended periods of time.
Every computer that connects to the internet has an IP address. This is like a sort of phone number, and is issued either to an individual computer or to a "gateway" that connects a private network to the 'net.

Domestic dial-up internet connections normally use a system called Dynamic IP Addressing where people are issued with a sort of "new identity" every time they connect, so it's difficult to find and attack an individual computer - Dynamic IP addressing is a bit like having your phone number change every time you use the phone, which makes it difficult for the bad guys to find you.

But the longer you keep a particular “phone number” the more chance there is of someone finding you and that is why high-speed always-on connections need handling with care.

In particular, with "always on" DSL and cable connections you are connected for extended periods of time which give the attackers more chance of finding you if you've got an unprotected connection.

In these days of identity theft and with more and more security holes being uncovered in commercial software it is vital that you have a good firewall if you use a high-speed connection.

You may already have a firewall, either in a device called a "Broadband Router" which goes between your computer and the Internet or the very basic firewall built in to Windows XP Service Pack 2 and you might think that’s all you need.

But there's another reason that you won't have thought of.

Basic firewalls will tell you, and hopefully protect you if someone is trying to get in.... but they won't tell you if something is trying to get out!

That's right! Certain spyware and viruses can gather your personal information and send it out of your machine without you knowing.

A good firewall will spot these attempts to send stuff out and will warn you, quite possibly before your Antivirus or Spyware application notices the problem. Which gives you time to get the problem fixed.

About the author:
Steve Blampied lives in Jersey in the Channel Islands and has been an independent IT consultant for around 10 years and has a small IT company in Jersey.

http://www.technology.je

He is currently putting together a web site solely about free software.
http://www.freesoftwareadvice.com


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Data Recovery - What Not to Do!

Data recovery is a tricky thing, and if you've somehow deleted or had your important files corrupted or lost due to human error, business espionage, faulty hardware or software or any other reason; the good news is that your lost data is probably recoverable. This article will show you a few things NOT to do when an event such as this occurs.

Don't run the drive anymore, or use the device. (MP3, portable storage, camera card, whatever) If you think it won't hurt to even just poke around the internet for a solution to this mess you've made/found, you're wrong! Don't install or run anything on the drive you hope to recover data from. Only access this drive again from a healthy PC with the software solution you're going to use. Since files are overwritten in the order they've been deleted, the last files that have been excised from your drive will be the first to be lost permanently. Even just surfing, with all the cookies and temporary internet files that are always being generated will often doom the process without you even knowing about it.

Don't use tools that may reside on your computer, such as Scandisk, or a boot record utility, as these will probably overwrite exactly the files you're seeking to get back.

In short, be careful! Your data may very well be recoverable, as long as you don't do something to erase it forever! Find a good data recovery software solution, and then follow the instructions to the letter, and you'll more than likely live to see your lost data return!

Keith Thompson is the webmaster at Data Recovery Service a site cenetered around helping you get back your lost data!

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