solution in the house , kind of synergy, but only X to X ?

[Sérgio Basto]

Hi, has you may know synergy http://synergy-foss.org/ lets you easily
share your mouse and keyboard between multiple computers.

As I only use X between multiple computers, I do the same with x11vnc on
remote X and with x2vnc , I control remote and local X with same mouse
and keyboard, also works well with copy and paste.· 

but x2vnc http://fredrik.hubbe.net/x2vnc.html is stopped since 2006 (I
guess) 
x2x http://dries.ulyssis.org/rpm/packages/x2x/info.html 
I found an src.rpm here http://pkgs.repoforge.org/x2x/

tigervnc have a x0vncserver which may replace x11vnc and x2vnc also
works with it but copy and paste between machine doesn't seems to work. 

So any solution for replacement of x2vnc ? 

Thanks,
-- 
Sérgio M. B.