firewalld linux

Firewalld is a firewall management tool for Linux operating systems. It provides a way to manage firewall rules and settings for a system. Firewalld is designed to be more flexible and easy to use than its predecessor, iptables.

Some of the key features of firewalld include:

1. Zone-based configuration: Firewalld uses zones to define different levels of trust for network connections. Each zone has its own set of rules and settings.

2. Dynamic rules: Firewalld can dynamically add or remove rules based on changes in the network environment. For example, if a new network interface is added, firewalld can automatically create rules to allow or block traffic on that interface.

3. Rich rule syntax: Firewalld supports a rich set of rule syntax, including source and destination IP addresses, ports, protocols, and more.

4. Integration with network services: Firewalld can integrate with network services to automatically create rules for those services. For example, if you install a web server, firewalld can automatically create rules to allow traffic on port 80.

Overall, firewalld is a powerful and flexible firewall management tool that can help you secure your Linux system.