3.6.1 Ensure iptables is installed (Scored)
Profile Applicability
- Level 1 - Server
- Level 1 - Workstation
Description
iptables allows configuration of the IPv4 tables in the linux kernel and the rules stored within them. Most firewall configuration utilities operate as a front end to iptables.
Rationale
iptables is required for firewall management and configuration.
Audit Procedure
Run the following command and verify iptables is installed:
dpkg -s iptables
Expected Result
The package iptables should be installed (status: install ok installed).
Remediation
Run the following command to install iptables:
apt-get install iptables
Default Value
Installed by default on Ubuntu.
References
- CIS Controls: 9.2 - Leverage Host-based Firewalls
Profile
- Level 1 - Server
- Level 1 - Workstation