What is Session?

HTTP communicates with lot of TCP connections, Server should create unique identifer for each Connection.

A Session is a unique identifier that is generated and sent to the client from a server in order to identify the Current Interaction Session.

Whenever you visit a webpage or login to website, the server will store the data about you in your system as a cookie. This cookies will help to identify you.

For example , you are login to Facebook.com. when you login to your account, a cookie will be generated and stored in your local system. if you click the logout, cookies will be destroyed.

Software Implementation:
TCP sessions are implemented using Multi threading concept. Whenever session is generated , a new thread will be created.

HTTP sessions are typically not implemented using one thread per session, but by means of a database with information about the state of each session.

Server side web sessions:
The sessions are stored in Server Machine.

Client side web sessions:
Client-side sessions use cookies . This will reduce the server side storage.

This is best method but there is one drawback. Sessions stored in client is vulnerable to tampering by the hackers. This can be overcome by encrypting the session(but hackers are able to decrypt it also).

HTTP session token

The client usually stores and sends the token as an HTTP cookie and/or sends it as a parameter in GET or POST queries.

The reason to use session tokens is that the client only has to handle the identifier. All session data is stored on the server (usually in a database, to which the client does not have direct access) linked to that identifier.

Magic cookie is simply a cookie that is used to authenticate the user on remote server or simply computer. In general, cookies are used to maintain the sessions on the websites and store the remote address of the website. 

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How To Modify .apk Files

The extension Google uses for Android applications  (APK) may seem a bit complicated at first, but it really isn’t. In fact, an .apk is nothing else than a .zip file disguised as an .apk. That’s dumbing it down, but you get it. Essentially, if one wanted to see what’s inside an app, they would just change the extension ofapplicationname.apk to applicationname.zip, unzip it.  And there you have it: The contents of the .apk!  We aren’t done yet, read more after the break.

Here is where it gets tricky. Inside the folder where you unzipped the contents of the application, you’ll find a file named classes.dex. That’s the most important file of the whole application, containing all the java files, but it’s encrypted!  No worries, that can easily be solved. You’ll need two things:

1. Dex2Jar from http://code.google.com/p/dex2jar/
2. A regular Java decompiler, such as JD from http://java.decompiler.free.fr

Copy classes.dex to the folder where you unzipped Dex2Jar, and run from the commandline: “dex2jar.bat classes.dex”

This will produce a file, strangely named something like: “classes.dex.dex2jar.jar” If you have WinRAR installed, you can just unpack the files. If you don’t, install it.

Now go ahead and adjust it to your liking!

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CLOUD COMPUTING

Cloud computing is the technology of computing which is totally based on the internet media. With the help of this ethnology many servers can offer softwao.re applications and resources and information to the computer and devices attached on request with the control of electricity grid. It can be called as the service architectures or virtualization for improving the utility of the computational techniques. Whole system is service oriented and customer focused. Complete detail is taken from the customer and delivers the service according to the need. The main idea of cloud computing is based on the cloud that is specifically designed for the processing each related device is present in this cloud of network. Could computing remains invisible to the customers’ .They only have to pay for their resource that they use in cloud computing services.

How cloud computing works :-

Cloud computing involves the multiple cloud components that communicate with each other wit the help of application interfaces mostly web services. UNIX operating system follows the same theoretical techniques for its tasks. The task complexity is divided into all the components making balanced and manageable results. The two most important components of the back end and front end .the front end is the interfaces or the main screen that is visible to the customers and users through which they interact with the system. This interface can be browsed with the help of web browsers and all the applications can be used with this interface. Usually this interface is GUI based.


The back end involves all the components and the complete architecture and programming technique of cloud computing that is totally remains hidden from the users. Only system known what is going one at the back of very user request. The back end device involves, cloud server, Assistant computers, Data storage media and many connectors.

Historical background

The very first concept for the cloud computing was given by the John McCathy in 1960s.he first gave the statement for the future use of computational techniques as a public utility. With the arrival of the Virtual private networks this concept which was modernized in 1966 took implementation shape .in year 2007 the most famous organization such as Google ,IBM and may universities world wide started research program on cloud computing and finally in 2008 the first cloud computing system was introduced.


Advantages of the cloud computing :-

1)Agile functionalities :- Cloud computing enables user to frequently use the technological resource at inexpensive price.


2)Application interface fro users :- Another great feature plus advantage of cloud computing system is the accessible and reliable interface for its users API technology make it more interesting for the users to interact with the human beings.
3)Cost effective :- This computing techniques greatly reduce the total cost and capital expenses that come sin arranging the infrastructure .integrated resources are available at almost no cost to the third party users.

4)Geographical independence of system and devices :- The most exciting feature of the cloud computing is its total geographical independence. Its users can access the system from the web browsers any where in the world at any time.

5)Multi and large application pool :- Large application pool is available for the users.

6)Reliability :- improved design versions of many redundant website have efficiently increase the performance and suitability of cloud computing more useful.

7)Security :- Security is at the one level above as compared to the other networks because of the centralization of data and increased security feature of very individual component.

8)Maintenance :- Cloud computing systems are flexible and easy to maintain because components can be added and deleted from the infrastructure.

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Remote PC Spy Software

1. Sniper Spy (Remote Install Supported)
Editors Rating: 9/10

SniperSpy is the industry leading Remote PC Spy softwarecombined with the Remote Install and Remote Viewing feature.

Once installed on the remote PC(s) you wish, you only need to login to your own personal SniperSpy account to view activity logs of the remote PC’s! This means that you can view logs of the remote PC’s from anywhere in the world as long as you have internet access!


Spy on a Remote PC and expose the truth behind the lies! Unlike the rest, SniperSpy allows you to remotely spy any PC like a television! Watch what happens on the screen LIVE! The only remote PC spy software with a SECURE control panel!

This Remote PC Spy software also saves screenshots along with text logs of chats, websites, keystrokes in any language and more. Remotely view everything your child, employee or anyone does while they use your distant PC. Includes LIVE admin and control commands!

SniperSpy Features:

1. SniperSpy is remotely-deployable spy software
2. Invisibility Stealth Mode Option. Works in complete stealth mode. Undetectable!
3. Logs All Keystrokes
4. Records any Password (Email, Login, Instant Messenger etc.)
5. Remote Monitor Entire IM Conversations so that you can spy on IM activities too
6. Captures a full-size jpg picture of the active window however often you wish
7. Real Time Screen Viewer
8. Remotely reboot or shutdown the PC or choose to logoff the current Windows user
9. Completely Bypasses any Firewall

Click Here to Download SniperSpy

Download SniperSpy for Mac

2. Spytech SpyAgent
Editors Rating: 8/10

Spytech Software and Design, Inc. is a privately held company based in Red Wing, Minnesota. The company specializes in security and monitoring software solutions. One of its premiere surveillance applications is Spytech SpyAgent. Numerous, enriched and robust features make the software appropriate for both home and business users.

SpyAgent Spy Software provides a large array of essential computer monitoring features, as well as website and application content filtering, chat client blocking, lockdown scheduling, and remote delivery of logs via email or FTP. SpyAgent's innovative and easy to use feature-set is unmatched, and provides the ultimate all-in-one Spy Software package.

SpyAgent Spy Software Recording Features:

SpyAgent's logging capabilities are unmatched. SpyAgent can log anything ranging from what the user typed and the files they downloaded, to who they talked to and emailed, website searches they performed, programs they ran, and much more - all time stamped by date for easy viewing. All logs can be easily saved, archived, and exported into reports for later use. SpyAgent can be configured to log all users on your computer with ease.

Click Here to Download SpyAgent


Here is a quick comparison between SniperSpy and SpyAgent

Which Monitoring Software to Choose?

First of all we believe that using computer monitoring software is in many ways more convenient than installing a hardware keylogger. When it comes to the question which of the existing programs to choose, users may have doubts. It is quite difficult to develop an application which would satisfy wide range of needs. Unlike the rest, SniperSpy allows you to remotely watch your computer like a television. Watch what happens on the screen live. It is the only remote spy software with a secure control panel. In other hand,SpyAgent runs in total stealth (if chosen) and has the most robust feature-set available on the market. I have personally tried the both, SniperSpy and SpyAgent, and I've been more satisfied with SniperSpy, because of its easy usage, and cool interface. The both softwares are the industry leading Remote PC Spy softwares, so whatever to choose you won't regret.

Download SniperSpy
Download SniperSpy for Mac

Download SpyAgent

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How To Control Your Computer with Your Cell Phone

Remotely Control Your PC from Anywhere with Your Cell Phone!

Have you ever been away from your desktop and needed some information that was on it? Have you ever needed to shutdown your computer or do something underhanded while away? In this post I am going to show you how to control your PC from your Cell Phone.

There is a program called CellPC that allows you to perform operations on your home/work PC via your cell phone or wireless device quickly and easily. Imagine being able to shutdown, restart, or logoff your PC remotely... search files on your computer and then send them to your cell phone... view a realtime screenshot of your computer at anytime... lockdown your computer... send a message/note/reminder to your computer... and much more!

CellPC Top Features:

• Perform Shutdowns, Restarts, Logoffs
• View a Screenshot of your Computer
• Search for and Retrieve Files
• View and Close Open Windows
• Customizable Commands Editing
• Be Alerted when your Computer is Used View and Close Open Applications
• Send Messages to your Computer
• Lock and Unlock your Computer
• Secure Command Execution
• Log all Access Attempts and Commands
• Disable/Enable Commands at will

How does CellPC Work? 



Will CellPC Work for Me?

CellPC can work with any Windows computer as long as it has a steady internet connection while the software is running.

If you want to verify that CellPC will work with your device, contact the CellPC support team so you can send them a test message from your phone.

Click Here To Download CellPC

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Gmail Undo Send –Take Back Your email

You are going to send an email but by mistake you have sent wrong email or sent email to a wrong recipient. You need to get Gmail Undo Send feature. Gmail Undo send is a  feature of Gmail from which you can get your mail back before it receives by recipient.Undo send gives up to 30 Seconds to change your mind and take back our email before the recipient see it. This will also work when you are going to reply only one sender but by mistake you have select reply to all. Or you are going to send an attachment but forgot to attach the attachment.

How to Enable Gmail Undo Send

First, open your Gmail account. This is only works on Gmail.

Second, click on the gear icon in the upper right corner.

Click on Settings from the drop down menu. Then click on Labs in the top menu.

Scroll down to option “Undo Send” and click Enable.

Then scroll back up to the top and click Save Changes.

That’s it. You have done.

Checking Undo Send

Yes, you could check whether this feature works by sending a test mail. I suggest write an email to yourself and hit Send. When you send email you see undo link at the top of the screen for few seconds.

If you click undo before it disappear then the mail would not be sent. You will see notification that saying Sending has been undone.

Customizing Undo Send (Time Setting)

You can customize the time for this feature. You can adjust the time from 5 to 30 seconds. By adjusting time your email sent to recipients after the time you have set for undo.

To set the time for Undo link appears after you hit the Send button,

Click on the Gear icon,

Then select Settings, click on General, on the left side of the top menu.

Scroll down to Undo Send and choose the Undo Send Cancellation period.

Scroll to the bottom of the page and click on Save Changes. You can change this later if you need more or less time.

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10 Registry Editing Tricks To Increase Your Windows XP performance

Everyone gets exasperated when their computer is slow. However, There are a number of editing tricks you can do with the Windows Registry that will improve the performance of Personal computers, especially Windows Pro and Home XP.

• Before you attempt to use the registry editor utility, make sure you backup your system.

Tutorial:

Ok, here’s a few registry editing tricks to you can use to help increase your Windows performance:

Trick No 1: Removal of unused fonts, program and protocols

Take stock of the programs that you use on a daily basis. Remove or uninstall those that are not required. You may keep your favorite fonts and remove the rest. After all, if you are using them and these can be loaded at anytime, there is no point in cluttering up your hard disk. Remove temporary files. These will be located in the C:\Windows\temp or C:\TEMP, c:\windows\prefetch directories. Also remove Network protocols like NetBEUI or IPX. Removal will free disk space and your personal computer will work faster.

Trick No 2: dll files that a program has used are not unloaded by Windows.

These will be available if you restart a program. So unload these dll files, use Regedit. Run Regedit and set the DWORD value as ‘AlwaysUnloadDLL and set to 1’.

Trick No 3: You change the way Windows XP uses memory in three ways.

Stop the XP from paging data from RAM onto the hard drive by disabling the paging executive. Change the value of the key to 1 from 0. Changing the value of the LargeSystemCache to 1 from 0 will help free up memory. Speed for Large file transfers can be improved by setting it between 8 and 16 megabytes.

Trick No 4: Use Regedit and adjust the network bandwidth reserved for various programs.

Create REG_DWORD key “DisableTaskOffload”. This should be set to 0.

Trick No 5: Shorten the menu delay by using Regedit.

Run regedit, edit HKEY_CURRENT_USER / Control Panel / Desktop / MenuShowDelay . The value is generally set to 400. Changing this to 100 will help speed up the process.

Trick No 6: Sometimes, after you install Norton Anti Virus, you may not be able to access your XP.

In such situation, use Regedit. Run regedit and go to

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lanmanserver\parameters. Edit the IRPStackSize by giving it a value of 15 and then reboot. This should solve the problem.

Trick No 7: Unwanted entries in the Startup (MSCONFIG) should be removed.

Run regedit. Go to HKEY_LOCAL_MACHINE\Software\Microsoft\Shared Tools\MSConfig\services
HKEY_LOCAL_MACHINE\Software\Microsoft\Shared Tools\MSConfig\startupfolder
HKEY_LOCAL_MACHINE\Software\Microsoft\shared Tools\MSConfig\startupreg

Trick No 8: You can turn off Fax viewer and Windows Picture from appearing by default.

Run Regedit and go to HKEY_CLASSES_ROOT / SystemFileAssociations / image / ShellEx / ContextMenuHandlers and delete ‘ShellImagePreview’.

Trick No 9: Turn off balloon tips.

Run regedit. Go to

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced. Create a DWORD value ‘EnableBalloonTips; and give it a value of ‘O’

Trick No 10: If you are the only person using your XP, you can reduce log in time by configuring your XP for automatic log in.

These are only a few tips to improve your system’s performance. As you read and explore the registry and come across specific problems, you can change the settings for speeding up the performance ofyour XP. Take care to take a backup before attempting any change.

Note Example: 'Run regedit' means Open Run from start menu or by pressing [windows key] + r and then type 'regedit' that menu will open it is known as regedit and whole process known as 'Run regedit'

EnjoY..!!! (-_-)                                                                                                                                         ©

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