[root@flybird ~]# systemctl status firewalld 
● firewalld.service - firewalld - dynamic firewall daemon 
  Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled) 
  Active: inactive (dead) 

root@flybird ~]# systemctl start firewalld 
[root@flybird ~]# systemctl status firewalld 
● firewalld.service - firewalld - dynamic firewall daemon 
  Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled) 
  Active: active (running) since Fri 2016-12-02 23:17:09 CST; 11s ago 
 Main PID: 1279 (firewalld) 
  CGroup: /system.slice/firewalld.service 
      └─1279 /usr/bin/python -Es /usr/sbin/firewalld --nofork --nopid 

[root@flybird ~]# firewall-cmd --query-port=5000/tcp 
no 
[root@flybird ~]# firewall-cmd --add-port=5000/tcp --permanent 
success 

[root@flybird ~]# firewall-cmd --list-all 
public (default) 
 interfaces:  
 sources:  
 services: dhcpv6-client http ssh 
 ports: 443/tcp 80/tcp 3306/tcp 6739/tcp 10051/tcp 10050/tcp 
 masquerade: no 
 forward-ports:  
 icmp-blocks:  
 rich rules: