firewalld
Dynamically managed Linux firewall daemon with network zones and D-Bus interface.
Why consider firewalld?
firewalld is an open-source dynamically managed firewall suite for Linux distributions. It allows administrators to assign network interfaces to trust zones (home, work, public), update rules on the fly without breaking active connections, and configure port forwarding.
Learn firewalld by building
Practical setup notes, real use cases, and copy-ready examples in one focused guide.
In this guide2 sections
Overview of firewalld
firewalld provides stateful firewall management across desktop and server Linux systems.
Quickstart
# Enable HTTP and SSH on public zonesudo firewall-cmd --zone=public --add-service=http --permanentsudo firewall-cmd --zone=public --add-service=ssh --permanentsudo firewall-cmd --reloadLaunch firewall-config for a full desktop graphical management interface.
firewalld is licensed under the GNU General Public License v2.0.
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