I often accept many unkown friend requests, one day i get into a big problem from a unkown friend of mine. He start abusingme .Then i do some research work and icome to know about this facebook trick and with the help of this PC Trick i cameto know that the unknown one is my own friend and he just make a fake ID on facebook.
Anyways here’s is the facebook trick of doing it:
First you got to find out the IP address of that User.
To Do so we will be using “ netstat ” command in windows for this pc trick . Ifyou want to know the IP address of a specific person on facebook or orkut or any chat service, there is only one way: Just invite or ping him for a chat and while chat is ON open ‘ Command Prompt ‘ on your PC (Start >Run>cmd).
Note: before trying this make sure you close all the other tabs in your browser. and only facebook is open. also if possible delete all the history and cache from your browser.
Now the next step that you have to do for this facebook trick is opens the command prompt  Type the following command and hit Enter .
netstat -an
And you will get all established connections IP addresses there. Note down all the suspicious IP’s
The Next PC Trick is to tracethat user using his IP address.
To do this facebook tricks we will be using IP tracer service . For this Go to the following address : http://www.ip-adress.com/ip_tracer/
and paste the IP address in the box that says “ lookup this ip or website ”. and it will show you the location of the user.
It will show you all the information about that user along with his ISP and a Location in the MAP. Now in the MAP Just click on “ click for big ip address location ” in the big picture you can actually zoom in. and try to recognize the area. If any serious matter just note down the ISP details in that page and contact them about the IP. they will respond you. Use this facebook trick if you are in a problem with some unkonown friend.