Hamachi need tuncfg to work, but tuncfg need root privileges, so if I want to run hamachi as a service for normal user I have to login as root and type tuncfg every reboot :
Is there a way to run tuncfg automatically without requiring root privileges?
Yes, put an entry in /etc/init.d/boot.local like this
/sbin/tuncfg
and you are done.
Great 
thanks.