$ sudo systemctl status firewalld
firewalld.service - firewalld - dynamic firewall daemon
   Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled)
   Active: active (running) since Tue 2015-04-28 12:00:59 CDT; 5min ago
 Main PID: 777 (firewalld)
...
$ sudo firewall-cmd --state
running
