Hello everybody.
I appreciate any help.
Firewall SYS Firewall 2.5 apparently installs correctly. However it does not start.
We've already tried removing and reinstalling, reboot, restart. When we click on start it appears the green ok signal, however, when returning in the window, the red signal is active.
The messages are as follows:
systemctl start firewalld
Failed to start firewalld.service: Unit is masked.
systemctl status firewalld
● firewalld.service
Loaded: masked (/dev/null; bad)
Active: inactive (dead)
Warning: firewalld.service changed on disk. Run 'systemctl daemon-reload' to reload units.
