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Thursday, August 4, 2011

What is Session in computer World? Magic Cookies

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.

Wednesday, August 3, 2011

Searching for serials and cracks made easy

The softwares which are available on the net are mostly trial versions and they have to be bought in order to use them to the fullest. these can be made into full versions by using different means like patches,Cracks or serial numbers or keys.
When you search for any thing of this sort you will end up in finding a list of sites which may not be related to the thing you are looking for. Some websites may even infect your system with Trojan horse, Viruses, Ad ware, Spy ware.

Tuesday, August 2, 2011

How To Enable, Install And Run Incompatible Addons On Firefox 4

here might be number of Firefox addons that you have fell in love with. So what would you do if you those Firefox extensions are not compatible to Firefox 4. Well sticking to the previous version of Firefox is not a smart option. So, how about to enableinstall and run incompatible addons on Firefox 4.
firefox-4-enable-old-addons

Facebook Shortcuts

Well Keyboard Shortcuts depends on browser and Operating System

Check it Below:

If U are using Windows + Crome Browser use these shortcuts:

1. Alt + ? = move’s ur cursor to search Box.
2. Alt + M = New Message
3. Alt + 1 = Home Page
4. Alt + 2 = Profile Page
5. Alt + 3 = Friend Requests
6. Alt + 4 = Messages Menu

Monday, August 1, 2011

How To Recover Data From A Crashed Hard Drive using PC Inspector

Hard disk crash is one of the most annoying problems and they come without warning. But the data is usually not wiped clean from the crashed hard drive; rather, the file allocation table—which contains filenames and points to data on the drive—is what usually gets damaged. It is therefore technically possible to recover data in such situations; you only need to know the tools of the trade. The tool we’re talking about is PC Inspector File Recovery, a freeware that can be downloaded from Pc Inspector.
If you’ve lost data on a partition on a drive other than C, just install the program in Windows. If your entire hard drive has crashed and you’re unable to boot, install the program on another computer and attach your hard drive as a secondary drive on that computer.

1. Launch The Program
Launch PC Inspector File Recovery, choose English as your language, and click on the green tick button. Choose what kind of data you wish to recover by clicking on one of the three buttons to the left. If you choose Lost Data, go directly to Step 6; if you choose lost drive, go directly to Step 8. If it is deleted data that you wish to recover, click on the icon at the top left.