There are several ways to implement virtualization. Two leading approaches are full virtualization and para-virtualization.

Full Virtualization

Full virtualization provides total abstraction of the underlying physical system and create a complete virtual system in which the guest operating system can execute. No modification is required in the guest operating system or application; the guest OS or application is not even aware that it is running within a virtualized environment. The guest OS executes on the VM just as they would on a physical system. This approach can be advantageous because it enables complete decoupling of the software from the hardware. As a result, full virtualization can streamline migration of applications and workloads between different physical systems. Full virtualization provides complete isolation of different virtualized applications, which makes this approach highly secure by design. Microsoft Virtual Server and Vmware ESX Server are examples of full virtualization.

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In my previous article I have already discussed about how to use the Online Feed Aggregators to view the password protected Feed with username and password. Now the next thing that should come to your mind is how do they actually fair in maintaining the security of your account. To understand that I studied and tested a number of online feed aggregators on the known protocols such as HTTP basic, HTTP digest, Integrated Windows and HTTPS SSL protection. So let us know about these protocols first. Then it will be better to understand what suits you more.
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In this world of Windows, anti-virus software needs no introduction at all. We all know they are the resident watchmen of our highly sensitive data inside the computer, protects it from all kinds of infection and more. Why spend money when you can get some of the best quality anti-virus software for free? What if I help you find more about the best anti-virus software available today and for free? Sounds interesting? You betcha.
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We all know about anti-virus software these days. I guess you have read my comparative study on anti-virus software too. If in case you haven't, here it is. While writing on that article I realized I have been rather superficial on the most important part of an anti-virus column and that is not WHAT cures the disease. Its about HOW they do it. Today let's find out how they actually work.

After a lot of study, I came to know about mainly four different algorithms used by today's anti-virus software to detect viruses:

1. Generic Scanning Technique
2. Integrity Checking Technique
3. Heuristic Search Scanning
4. Interception technique

None of them are individually perfect. However in combination they often prove to be a formidable opponent to any current viruses, trojans and more. Moreover some of the techniques also protect your computer against future viruses.

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Gone are the days of wired networking devices. Wireless networking is the future. It is the gen-x mode of communication. But as is said, "With great power comes great responsibility" so it has some real security loopholes too. You can never imagine how stealthily your wireless network can be hacked and it can have tremendous implications not only on your security but also your personal safety and peace. What if some terrorist uses your open wireless network to send terror emails or bomb threats? You will soon have cops swarming on your doorstep. Try convincing them that it was not you. At the least your whole life will be turned topsy-turvy and you will be in headlines all over the country and I assure you it won't be complimentary. So let me tell you some important but easy ways to protect your wireless network:
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CodeWeaver's released a port of Google's Chrome browser (review) for Linux. CrossOver Chromium is a Mac and Linux port of the open source Chromium web browser. CrossOver Chromium is free and available for download here.

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I was doing something very simple - connecting to my own machine (with ssh) without using password. That should be simple right?

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The following is a detailed of Google Chrome browser. I have taken it through the paces, tested many features and even tried to run it on Linux.
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1. How can you hack GMail account?
2. How can you protect your GMail account from hackers?
Hackers at Defcon demonstrated a tool to hack into GMail accounts by snooping unencrypted data (man-in-the-middle attack) with cookie which Google GMail uses for everything other than login by default.

Last week Google introduced the ability to optionally encrypt any transmission to / from GMail and not just the login sequence. Previously GMail used to encrypt the login sequence only. All other data was transmitted unencrypted over the wire making such hacking possible. Every email, every article that you are reading on your GMail account is transmitted unencrypted over the web. Read more (596 words) »

One fine morning you may find an email like this in your mailbox:

Subject: Your ads have been suspended.

Dear Advertiser,
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We were unable to process your payment.
Your ads will be suspended soon unless we can process your payment.
To prevent your ads from being suspended, please update your payment information.
—————–
Please sign in
to your account at http://adwords.google.com/select/login,
and update your payment information.
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We look forward to providing you with the most effective advertising available.
Thank you for advertising with Google AdWords.

If you happen to be an AdWords advertiser this can send a chill down your spine. Relax, you have nothing to worry.

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