firewall-cmd
The firewalld command-line client. More information: <https://firewalld.org/documentation/man-pages/firewall-cmd>.
Install
- All systems
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curl cmd.cat/firewall-cmd.sh
- Debian
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apt-get install firewalld - Ubuntu
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apt-get install firewalld - Arch Linux
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pacman -S firewalld - Kali Linux
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apt-get install firewalld - CentOS
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yum install firewalld - Fedora
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dnf install firewalld - Windows (WSL2)
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sudo apt-get updatesudo apt-get install firewalld - Raspbian
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apt-get install firewalld - Dockerfile
- dockerfile.run/firewall-cmd
The firewalld command-line client. More information: <https://firewalld.org/documentation/man-pages/firewall-cmd>.
-
View the available firewall zones:
firewall-cmd --get-active-zones -
View the rules which are currently applied:
firewall-cmd --list-all -
Permanently move the interface into the block zone, effectively blocking all communication:
firewall-cmd --permanent --zone=block --change-interface=enp1s0 -
Permanently open the port for a service in the specified zone (like port 443 when in the `public` zone):
firewall-cmd --permanent --zone=public --add-service=https -
Permanently close the port for a service in the specified zone (like port 80 when in the `public` zone):
firewall-cmd --permanent --zone=public --remove-service=http -
Permanently open two arbitrary ports in the specified zone:
firewall-cmd --permanent --zone=public --add-port=25565/tcp --add-port=19132/udp -
Reload firewalld to force rule changes to take effect:
firewall-cmd --reload
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