GUI remote connection

Hello,
I need a tool for remote GUI connection to Linux machine ,something like remote Desktop in windows?????any help

Thanks in advance

VNC, tsclient, RFB -- google along those lines. VNC is probably the most popular.

in kde, you have a remote desktop client and server
krd or similar

One thing you should realise is that unlike Microsoft windows, in X windows the windows "server" is like a service so it is easier to remotely display things. You may just need an xwindows server on you desktop. I prefer to use cygwin with X windows installed and just ssh to the Unix machine with X forwarding enabled.
If you really need the full desktop VNC is pretty easy to use. Most linux boxes will have the vncserver installed and there are a few free clients. Here's one RealVNC - VNC feature comparison and download selector.

I think VNC is the most suitable one