Disabling standalone daemons (cont)

# /etc/init.d/spamd stop
# rm /etc/rc?.d/S??spamd

Linux distros have different tools to manage these symlinks
Red Hat's chkconfig
Debian's update-rc.d
etc...

Best method, if you don't need it is to remove the software itself!

# dpkg -S /etc/init.d/inetd /usr/sbin/inetd
netkit-inetd: /etc/init.d/inetd
netkit-inetd: /usr/sbin/inetd
# dpkg -r netkit-inetd