What is the default zone in firewalld?
public zone
In its default configuration, firewalld pairs all interfaces with the public zone and doesn’t set up sources for any zones. As a result, public is the only active zone. Sources are incoming IP address ranges, which also can be assigned to zones. A source (or overlapping sources) cannot be assigned to multiple zones.
What is Zone in firewalld?
One particular concept found in firewalld is that of zones. Zones are predefined sets of rules that specify what traffic should be allowed, based on trust levels for network connections. For example, you can have zones for home, public, trusted, etc.
How to check the active zone of a firewall?
Since we haven’t given firewalld any commands to deviate from the default zone, and none of our interfaces are configured to bind to another zone, that zone will also be the only “active” zone (the zone that is controlling the traffic for our interfaces). We can verify that by typing: firewall-cmd –get-active-zones.
Why are no firewall zones active in Debian?
If NetworkManager is not used, there are some limitations… If firewalld gets started after the network is already up, the connections and manually created interfaces are not bound to a zone. However, I have rebooted at least once since installing firewalld.
How to print the log denied setting in firewall?
Print the log denied setting. Add logging rules right before reject and drop rules in the INPUT, FORWARD and OUTPUT chains for the default rules and also final reject and drop rules in zones for the configured link-layer packet type. The possible values are: all, unicast, broadcast, multicast and off.
Which is the default setting for the firewall?
The default setting is off, which disables the logging. This is a runtime and permanent change and will also reload the firewall to be able to add the logging rules. The permanent option –permanent can be used to set options permanently. These changes are not effective immediately, only after service restart/reload or system reboot.