Shulou(Shulou.com)06/02 Report--

Install the Firewall command:

Yum install firewalld firewalld-config

Firewall command to open common ports:

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 shuts down 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

Turn on the firewall command:

Systemctl start firewalld.service

Restart the firewall command:

Firewall-cmd-reload or service firewalld restart

View the list of ports:

Firewall-cmd-permanent-list-port

Disable the firewall

Systemctl stop firewalld

Set up boot boot

Systemctl enable firewalld

Stop and disable boot startup

Sytemctl disable firewalld

View statu

Systemctl status firewalld or firewall-cmd-- state

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