identify a customer under a UNIX server

Like many UNIX users, there is a small team that is connected to UNIX (under the same UNIX user) via putty from a Windows PC.

Is there a way, once under UNIX, to know the address of the originating computer or anything that can differentiate initial users ?

try this

 who -a 

or this:

w

What Unix?

On SCO (recent SCO, anyway) , it would be "who -x". On Linux or BSD, just "w" is enough.

Do a "man who"

"finger" shows the originating IP/domain name of the telnet session, whereas who and w only show the userid, psuedo tty and the currently running command.

My w shows the remote host name.

This is not what I wanted. I connect from my PC, with putty, to UNIX and I run a script. Does the script can tell it's me who has logged on and launched the script, something that identifies my PC.

In fact the better for me is who am i: the name of MY remote machine is displayed.
Only problem: if I migrates with su - <USER> , we do not see it.
But actually who am i is enough ... I close the issue.