Start firewalld
systemctl start firewalld.service
Stop firewalld
systemctl stop firewalld.service
Restart firewalld
systemctl restart firewalld.service
Check opened ports
firewall-cmd –list-all
Open port 80
firewall-cmd –permanent –add-port=80/tcp
Open port range
firewall-cmd –permanent –add-port=10000-10010/tcp
Close port 80
firewall-cmd –permanent –remove-port=80/tcp
Reload settings
firewall-cmd –reload
Reference:
http://note.tc.edu.tw/932.html