3.5.3.1.2 Ensure nftables is not installed with iptables

Audit

Run the following commend to verify that nftables is not installed:

# dpkg-query -W -f='${binary:Package}\t${Status}\t${db:Status-Status}\n' nftables
nftables unknown ok not-installed not-installed

Remediation

Run the following command to remove nftables:

# apt purge nftables