Install iptables-persistent Package
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Description
The iptables-persistent
package can be installed with the following command:
$ apt-get install iptables-persistent
Rationale
A method of configuring and maintaining firewall rules is
necessary to configure a Host Based Firewall.
Shell script
The following script can be run on the host to remediate the issue.
#!/bin/bash
# Remediation is applicable only in certain platforms
if dpkg-query --show --showformat='${db:Status-Status}\n' 'iptables' 2>/dev/null | grep -q installed; then
DEBIAN_FRONTEND=noninteractive apt-get install -y "iptables-persistent"
else
>&2 echo 'Remediation is not applicable, nothing was done'
fi
Ansible playbook
The following playbook can be run with Ansible to remediate the issue.
- name: Gather the package facts
package_facts:
manager: auto
tags:
- enable_strategy
- low_complexity
- low_disruption
- medium_severity
- no_reboot_needed
- package_iptables-persistent_installed
- name: Ensure iptables-persistent is installed
package:
name: iptables-persistent
state: present
when: '"iptables" in ansible_facts.packages'
tags:
- enable_strategy
- low_complexity
- low_disruption
- medium_severity
- no_reboot_needed
- package_iptables-persistent_installed