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XCCDF
Guide to the Secure Configuration of Red Hat Enterprise Linux 8
System Settings
Network Configuration and Firewalls
firewalld
Strengthen the Default Ruleset
Set Default firewalld Zone for Incoming Packets
Set Default firewalld Zone for Incoming Packets
An XCCDF Rule
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Set Default firewalld Zone for Incoming Packets
Medium Severity
To set the default zone to
drop
for the built-in default zone which processes incoming IPv4 and IPv6 packets, modify the following line in
/etc/firewalld/firewalld.conf
to be:
DefaultZone=drop