When you try to stop something writes
Authorization not available. Check if polkit service is running or see debug message for more infomation.
if you write sudo will be:
unable to start /etc/sudoers: Permission denied
To this error apparently prescribed chmod-R 777 /
When we rebuilt the entrance prescribed chmod-R 644 /etc/
how to return chmod the etc folder?
Or how to disable iptables systemctl without