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XCCDF
Guide to the Secure Configuration of SUSE Linux Enterprise 12
System Settings
Network Configuration and Firewalls
iptables and ip6tables
Strengthen the Default Ruleset
Ensure Outbound and Established Connections are Configured
Ensure Outbound and Established Connections are Configured
An XCCDF Rule
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Profiles
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Ensure Outbound and Established Connections are Configured
Medium Severity
Configure the firewall rules for new outbound and established connections.