3.5.1.3 Ensure nftables is not installed or stopped and masked - masked
Information
nftables is a subsystem of the Linux kernel providing filtering and classification of network packets/datagrams/frames and is the successor to iptables. Rationale: Running both firewalld and nftables may lead to conflict. Note: firewalld may configured as the front-end to nftables. If this case, nftables should be stopped and masked instead of removed.
Solution
Run the following command to remove nftables: # yum remove nftables