这是我从状态firewalld得到的：
firewalld.service - firewalld - dynamic firewall daemon
Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled)
Active: inactive (dead) since Tue 2015-07-14 02:58:35 UTC; 35s ago
Process: 19546 ExecStart=/usr/sbin/firewalld --nofork --nopid
$FIREWALLD_ARGS (code=exited, status=0/SUCCESS)
Main PID: 19546 (code=exited, status=0/SUCCESS)
7月14日02:58:35 li1201-198.members.linode.com Firewalld [19546]：2015-07-14 02:58:35错误：DBusException异常：org.freedesktop.DBus.Error.AccessDenied：“连接”：1.314由于配置文件中的安全策略，“”不允许拥有服务“ org.fedoraproject.FirewallD1” 。Jul 14 02:58:35 li1201-198.members.linode.com systemd [1]：已启动firewalld-动态防火墙守护程序。