Centos7 of Firewall firewall opens common port commands

Install the 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

]

Batch add interval ports

[

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 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 boot

[

sytemctl disable firewalld

]

Check the status

[

systemctl status firewalld or ES103en-ES104en --state

]