Tag Archives: iptables

LFCE Preparation Guide: Network Administration – Implementing Packet Filtering

Introduction By “packet filtering,” the Linux Foundation here appears to be referring to iptables in the CentOS environment.  While iptables is still usable on RHEL/CentOS 7, it is by default replaced by firewalld (part of the systemd software suite), which … Continue reading

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Logging Packet Drops in Firewalld

Up-Front Answer Summary: The short answer is:  the feature to simply log all packet actions isn’t available yet.  See the link referenced below in the whole thing. The longer answer is:  There may be a feasible work-around: Your firewalld default … Continue reading

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