What are some common firewalld commands?

What are some common firewalld commands I should know?

Some common firewalld commands include:

1. firewall-cmd --state - Check the state of firewalld.
2. firewall-cmd --list-all - List all active rules.
3. firewall-cmd --add-service=http - Allow HTTP traffic.
4. firewall-cmd --remove-service=http - Block HTTP traffic.
5. firewall-cmd --permanent --add-port=8080/tcp - Open port 8080 permanently.

How do I make changes permanent?

To make changes permanent, you can use the --permanent option with your command. For example, firewall-cmd --permanent --add-service=https will allow HTTPS traffic permanently.

Can I see the rules for a specific zone?

Yes, you can view the rules for a specific zone by using the command firewall-cmd --zone=your_zone --list-all. Replace your_zone with the name of the zone you want to check.

What if I want to reload the firewall rules?

You can reload the firewall rules by using the command firewall-cmd --reload. This will apply any changes you've made.