View open ports
firewall-cmd --list-ports
Open port (after opening the firewall need to restart to take effect)
firewall-cmd --zone=public --add-port=3338/tcp --permanent
Restart the firewall
firewall-cmd --reload
Close the port (after turning off the firewall need to restart to take effect)
firewall-cmd --zone=public --remove-port=3338/tcp --permanent
Boot Firewall
systemctl enable firewalld
Open the firewall
systemctl start firewalld
Prohibit the firewall boot
systemctl disable firewalld
Stop firewall
systemctl stop firewalld
View open ports
firewall-cmd --list-ports
Open port (after opening the firewall need to restart to take effect)
firewall-cmd --zone=public --add-port=3338/tcp --permanent
Restart the firewall
firewall-cmd --reload
Close the port (after turning off the firewall need to restart to take effect)
firewall-cmd --zone=public --remove-port=3338/tcp --permanent
Boot Firewall
systemctl enable firewalld
Open the firewall
systemctl start firewalld
Prohibit the firewall boot
systemctl disable firewalld
Stop firewall
systemctl stop firewalld