Uninstall nftables package
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Description
nftables is a subsystem of the Linux kernel providing filtering and classification of network
packets/datagrams/frames and is the successor to iptables.
The nftables package can be removed with the following command:
$ apt-get remove nftables
Rationale
Running both firewalld and nftables may lead to conflict.
Shell script
The following script can be run on the host to remediate the issue.
#!/bin/bash
# CAUTION: This remediation script will remove nftables
# from the system, and may remove any packages
# that depend on nftables. Execute this
# remediation AFTER testing on a non-production
# system!
DEBIAN_FRONTEND=noninteractive apt-get remove -y "nftables"
Ansible playbook
The following playbook can be run with Ansible to remediate the issue.
- name: Ensure nftables is removed
package:
name: nftables
state: absent
tags:
- disable_strategy
- low_complexity
- low_disruption
- medium_severity
- no_reboot_needed
- package_nftables_removed
