[root@yistack-aio ~]# firewall-cmd --state

running

[root@yistack-aio ~]# systemctl stop firewalld.service

[root@yistack-aio ~]# firewall-cmd --state

not running

[root@yistack-aio ~]#

[root@yistack-aio ~]#

[root@yistack-aio ~]#

[root@yistack-aio ~]# iptables -L

Chain INPUT (policy ACCEPT)

target     prot opt source               destination

Chain FORWARD (policy ACCEPT)

target     prot opt source               destination

Chain OUTPUT (policy ACCEPT)

target     prot opt source               destination

[root@yistack-aio ~]#