Question : startup script as su in Fedora

I want to run a acript at boot that will have su rights. It failed when I put it in /etc/rc.local

Is there a place I can put a bash-script that I make which will run at boot and has su-rights?

Answer : startup script as su in Fedora

Why not just shut off NetworkManager and configure your interface?

If you want to use that script put it in rc.local then run the following commands:

chmod 744 <script name>

chown root:root <script name>

and it should work.