Install Firewall command:
yum install firewalld firewalld-config
Firewall opens common port commands:
firewall-cmd --zone=public --add-port=80/tcp --permanent
firewall-cmd --zone=public --add-port=443/tcp --permanent
firewall-cmd --zone=public --add-port=22/tcp --permanent
firewall-cmd --zone=public --add-port=21/tcp --permanent
firewall-cmd --zone=public --add-port=53/udp --permanent
Firewall close common port commands:
firewall-cmd --zone=public --remove-port=80/tcp --permanent
firewall-cmd --zone=public --remove-port=443/tcp --permanent
firewall-cmd --zone=public --remove-port=22/tcp --permanent
firewall-cmd --zone=public --remove-port=21/tcp --permanent
firewall-cmd --zone=public --remove-port=53/udp --permanent
Add interval ports in batch
firewall-cmd --zone=public --add-port=4400-4600/udp --permanent
firewall-cmd --zone=public --add-port=4400-4600/tcp --permanent
Open firewall command:
systemctl start firewalld.service
Restart the firewall command:
firewall-cmd --reload or service firewalld restart
View the port list:
firewall-cmd --permanent --list-port
Disable firewall
systemctl stop firewalld
Set boot up
systemctl enable firewalld
Stop and disable startup
sytemctl disable firewalld
Check status
systemctl status firewalld或者 firewall-cmd --state