Well i am interested to know is there any way of finding the ip of a person , not by deceiving him.
There are ways like , asking him/her to visit a page and then we fetch the ip of the person  or writing a php script for that , but i want to find his / her ip directly , is there any way to do that ..?

Besides , when i tried any of the techniques mentioned above  , i got the DNS for that user not the IP which is assigned to it.




PS :  its strictly realtd to educational purpose only , and the person i am mentioned is my research mate.

If all you got was the DNS for a you did something wrong. You can easily get the IP, and sometimes even the kind of Browser and OS of the average user. Well,unless he is going through some kind of proxy. One of the two most popular ways of getting an IP is as you mentioned and the other is to send a coded email that when opened returns an IP. Both techniques could be classified as social engineering or tricking the individual as you stated and are not fool proof. The personal information connected to an IP address are usually guarded by an ISP and usually are only given out with a court order.

i have listed the messenger in the messaging application and i also have his DNS.
Wat is the IP sniffing ur talking about.