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Hugh Ratsch
2025-02-18 19:56:32 -06:00
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@@ -743,8 +743,22 @@ sudo dnf repolist # List all repositories
## Understand and Configure Firewalls
### firewall-cmd
> Note: firewall-cmd is used to manage the firewall rules.
```bash
sudo firewall-cmd --get-active-zones # Display the active zones
sudo firewall-cmd --get-default-zone # Display the default zone
sudo firewall-cmd --get-zones # Display the zones
sudo firewall-cmd --list-all # Display all the rules in the firewall
sudo firewall-cmd --zone=public --add-service=http --permanent # Add the http service to the public zone
sudo firewall-cmd --zone=public --add-port=80/tcp --permanent # Add the port 80/tcp to the public zone
sudo firewall-cmd --zone=public --add-protocol=tcp --permanent # Add the tcp protocol to the public zone
sudo firewall-cmd --reload # Reload the firewall
```
### port reference
```bash
sudo less /etc/services # Display the services
```