Firewalld

Firewalld

Firewalld is a firewall management tool for Linux operating systems. It provides a dynamically managed firewall with support for network zones to define the trust level of network connections and interfaces. Firewalld is the default firewall solution in latest Red Hat based Linux
Firewalld image
firewall network-security linux

Firewalld: Linux Firewall Management Tool

Firewalld is a firewall management tool for Linux operating systems, providing dynamic management and support for network zones to define trust levels of network connections and interfaces. It's the default firewall solution in latest Red Hat based Linux distributions.

What is Firewalld?

Firewalld is a complete firewall solution that provides a dynamically managed firewall with support for network zones to define the trust level of network connections and interfaces. It is the default firewall management tool shipping with the latest Red Hat based Linux distributions including Red Hat Enterprise Linux and Fedora.

Some key features of Firewalld include:

  • Dynamic firewall management that allows changes to the firewall settings without rebooting the system.
  • Support for creating network zones with predefined trusted interfaces and connections.
  • IPv4 and IPv6 support.
  • An easy to use command line and graphical user interface.
  • Backwards compatibility with the legacy iptables and ebtables services to ease transition.
  • Tight integration with Linux systemd services for improved performance.
  • Support for ICMP blocks to limit ping and traceroute type connections.
  • Ability to create custom services and zones as needed.

Firewalld aims to make managing firewall policies and rules easy with dynamically applied changes so firewall adjustments can be made on the fly as needs change without impacting existing connections or availability. The combination of iptables and ebtables integration along with custom zone support allows flexible firewall policy definitions tailored to an organization's specific needs.

Firewalld Features

Features

  1. Dynamic firewall management
  2. Support for network zones
  3. Integration with iptables
  4. GUI configuration tool
  5. Command line interface
  6. Predefined services and zones
  7. Runtime and permanent configuration options

Pricing

  • Open Source

Pros

Easy to use

Flexible network control

Good integration with Linux systems

Powerful CLI

Backwards compatibility with iptables

Cons

Complex for beginners

Limited documentation

CLI required for full functionality

Lacks features of other firewalls like pfSense


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