ubun2

Create a .synergy.conf file in your home folder i.e /home/your_username/.synergy.conf  (replace with actual username)
with contents as below
 
.synergy.conf
=========
 
section: screens
 
        machinename1:
        machinename2:
end
section: links
        machinename2:
                right = machinename1
        machinename1:
                left = machinename2
end
 
 
and now start the server as usual. Note: Replace machinenames with your actual machine names