way of starting a firewall script in debian 9 with kde5 and sddm

[Stephane L <stephanel35@yahoo.fr>]

Hi,

I have a firewall script(firewall) that I laucnh with <firewall start>

Is there a way in debian 9 (with kde5 and sddm) to start this script at the boot of the linux system or at the launching of xorg or of kde5 ?

Thanks