So immediately I thought there is a popup ad but I can’t find any. At last, I found the culprit, it’s from a flash advertisement in YouTube. Can you imagine that? Here’s a screenshot of it, notice the pink box.

Anyway, I never trusted these kind of advertisement because I believe there’s no such thing as a free lunch in this world.

If you are using Mozilla Firefox and wanted to block the advertisements, you might want to check out Adblock Plus.

A letter from Steve Jobs released on Wednesday evening:

August 24, 2011

To the Apple Board of Directors and the Apple Community:

I have always said if there ever came a day when I could no longer meet my duties and expectations as Apple’s CEO, I would be the first to let you know. Unfortunately, that day has come.

I hereby resign as CEO of Apple. I would like to serve, if the Board sees fit, as Chairman of the Board, director and Apple employee.

As far as my successor goes, I strongly recommend that we execute our succession plan and name Tim Cook as CEO of Apple.

I believe Apple’s brightest and most innovative days are ahead of it. And I look forward to watching and contributing to its success in a new role.

I have made some of the best friends of my life at Apple, and I thank you all for the many years of being able to work alongside you.

Steve

So there goes the era of Steve Jobs. However, the good news is, Jobs has been elected as Chairman of the Board and will still remain with the company.

Followed by Steve Jobs’s recommendation, Tim Cook (Apple’s COO) will replace Steve Jobs as the new CEO.

It is interesting to see how Apple continues its journey down the road with a new CEO.

#1 – Syntax of main() Method

First thing to do is of course to check whether your java file DOES really has no main() method to be run. Check the syntax too. If you are sure about your syntax, proceed to next step.

The syntax:

public static void main (String[] args) { 
 
}

#2 – Check your project source folder / build path

Go to Project > Properties > Java Build Path > Source tab

In most cases, your source folder will be workspace-folder/project-name/src. So, when Eclipse run your Java file, it will look into this folder. So all your Java files should be in this folder!

Now check out your Project Tree. Example below shows my project tree, with 2 Java file.

And this is where i found my problem. My Java files were not placed inside “src” folder so Eclipse is complaining. So drag them into the “src” folder. Eclipse should now stop complaining about the problem.

What is hijacking and how do session hijack works?

Session hijacker tool is actually a packet sniffer that monitors traffic between a Wi-Fi router and users connecting to the network. It can then do their dirty work based on the collected packets. Session hijacking is a method of taking over a web user session by obtaining the session ID and then disguising as the authorized user. It means that you wouldn’t even know when they hijacked your session, surfing the websites and doing stuff using your account.

FaceNiff – Session Hijacking using mobile phone

Similar to FireSheep, there is another tool now specially made for mobile phones! FaceNiff is an Android application that allows you to sniff and intercept web session over public WiFi. It requires a rooted android phone (similar to iphone’s jailbreak). Below shows how easy it was to hijack a Facebook session:

Protection = Encryption

Imagine you are in a big public WiFi network like university campus accessing sensitive data, your account and data is not safe. Therefore to protect against these hijack attacks, the first and more important step is to use HTTPS to surf the web whenever possible. Although HTTPS still does not promises 100% protection because you are still using public network, but it does provide extra protection for free, so why not? Twitter and Facebook have HTTPS enabled, maybe not by default, but they can be easily enforced. Here’s how:

Twitter
To enable HTTPS in Twitter, go to Settings > Account tab > Tick “Always use HTTPS” checkbox

Facebook
To enable HTTPS in Facebook, go to Account Settings > Settings tab > under “Account Security” > Tick “Secure Browsing (https)” checkbox

However in Facebook, not every apps or games has HTTPS so when you load a game, Facebook might temporarily disable HTTPS.

HTTPS

The main idea of HTTPS is to create a secure channel over an insecure network. This ensures reasonable protection from eavesdroppers and man-in-the-middle attacks, provided that adequate cipher suites are used and that the server certificate is verified and trusted.

More info about HTTPS

• Hold down Windows key + R to open the Run windows
• In the input area, type in “cmd” to open “Command Prompt”
• In command propt, you will see lines like “C:\Users\Your NAME>”
• My undeletable file was located at desktop, so I type “cd desktop”
  So, my path is now “C:\Users\Your Name\desktop\”

  If your file is in desktop/folder1, you should type “cd desktop\folder1″

  If your file in in local disk C or D and you would like to start browsing from there, type “cd C:\” or “cd D:\”

• Once you are in the correct folder or path, type “dir /x” and you will see a list of all files and directories
• Each files and folders were given a shorter name. For example, my shortcut file “Google Chrome.ink” was given a name called “GOOGLE~1.INK”
• Now we will start deleting the undeletable file. For example, to delete the shortcut file, I type “del GOOGLE~1.INK”
  which is basically “del” followed by a space followed by the shorter file name.
• It should be gone by now. So, who says it is undeletable :)
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