| 3.1.1 Disable IPv6 - sysctl.conf all | CIS Debian Family Workstation L2 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.3.3 Ensure /etc/hosts.deny is configured | CIS Debian 9 Server L1 v1.0.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.3.3 Ensure /etc/hosts.deny is configured | CIS Debian 9 Workstation L1 v1.0.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.4.1.1 Ensure iptables packages are installed | CIS Ubuntu Linux 18.04 LXD Container L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.4.1.2 Ensure nftables is not installed | CIS Ubuntu Linux 18.04 LXD Container L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.1.1 Ensure default deny firewall policy - Chain FORWARD | CIS Debian 9 Server L1 v1.0.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.1.1 Ensure default deny firewall policy - Chain FORWARD | CIS Debian 9 Workstation L1 v1.0.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.1.1 Ensure default deny firewall policy - Chain INPUT | CIS Debian 9 Workstation L1 v1.0.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.1.2 Ensure iptables-services package is not installed | CIS Fedora 19 Family Linux Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.1.2 Ensure loopback traffic is configured - output | CIS Debian 9 Server L1 v1.0.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.1.2 Ensure loopback traffic is configured - output | CIS Debian 9 Workstation L1 v1.0.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.1.4 Ensure firewalld service is enabled and running - enabled | CIS Fedora 19 Family Linux Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.1.5 Ensure default zone is set | CIS Fedora 19 Family Linux Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.1.6 Ensure network interfaces are assigned to appropriate zone | CIS Fedora 19 Family Linux Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.1 Ensure IPv6 default deny firewall policy - Chain FORWARD | CIS Debian 9 Server L1 v1.0.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.1 Ensure IPv6 default deny firewall policy - Chain OUTPUT | CIS Aliyun Linux 2 L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.2 Ensure IPv6 loopback traffic is configured | CIS Debian 9 Server L1 v1.0.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.3 Ensure IPv6 outbound and established connections are configured | CIS Debian 9 Server L1 v1.0.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.4 Ensure IPv6 firewall rules exist for all open ports | CIS Aliyun Linux 2 L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.1.4 Ensure loopback traffic is configured - allow in v6 | CIS Debian Family Workstation L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.1.4 Ensure loopback traffic is configured - allow out v4 | CIS Debian Family Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2.1 Ensure nftables is installed | CIS Debian Family Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2.1 Ensure ufw service is enabled - systemctl | CIS Ubuntu Linux 18.04 LXD Host L1 Workstation v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2.2 Ensure default deny firewall policy | CIS Ubuntu Linux 18.04 LXD Host L1 Server v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2.2 Ensure IPv4 loopback traffic is configured - OUTPUT | CIS CentOS 6 Server L1 v3.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2.2 Ensure IPv4 loopback traffic is configured - OUTPUT | CIS CentOS 6 Workstation L1 v3.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2.3 Ensure iptables are flushed - v4 | CIS Debian Family Workstation L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2.3 Ensure iptables are flushed - v6 | CIS Debian Family Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2.8 Ensure default deny firewall policy - output | CIS Debian Family Workstation L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.1.3 Ensure Uncomplicated Firewall is not installed or disabled | CIS Debian Family Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.2.1 Ensure default deny firewall policy - FORWARD | CIS Debian Family Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.2.1 Ensure default deny firewall policy - INPUT | CIS Debian Family Workstation L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.2.2 Ensure loopback traffic is configured - INPUT | CIS Debian Family Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.2.2 Ensure loopback traffic is configured - INPUT | CIS Debian Family Workstation L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.2.2 Ensure loopback traffic is configured - OUTPUT | CIS Debian Family Workstation L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.3 Ensure base chains exist - forward | CIS Ubuntu Linux 18.04 LXD Host L1 Workstation v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.3.1 Ensure IPv6 default deny firewall policy - Chain FORWARD | CIS Debian Family Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.3.2 Ensure IPv6 loopback traffic is configured - INPUT | CIS Debian Family Workstation L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.4 Ensure IPv6 firewall rules exist for all open ports - iptables | CIS CentOS 6 Server L1 v3.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.4 Ensure IPv6 firewall rules exist for all open ports - iptables | CIS CentOS 6 Workstation L1 v3.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.4 Ensure IPv6 firewall rules exist for all open ports - ss | CIS CentOS 6 Server L1 v3.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.4 Ensure loopback traffic is configured - lo | CIS Ubuntu Linux 18.04 LXD Host L1 Server v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.4 Ensure loopback traffic is configured - v4 | CIS Ubuntu Linux 18.04 LXD Host L1 Workstation v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.4 Ensure loopback traffic is configured - v6 | CIS Ubuntu Linux 18.04 LXD Host L1 Server v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.5 Ensure outbound and established connections are configured | CIS Ubuntu Linux 18.04 LXD Host L1 Server v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.6 Ensure default deny firewall policy - input | CIS Ubuntu Linux 18.04 LXD Host L1 Server v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.8 Ensure nftables rules are permanent | CIS Ubuntu Linux 18.04 LXD Host L1 Server v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.8 Ensure nftables rules are permanent | CIS Ubuntu Linux 18.04 LXD Host L1 Workstation v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.4.2.2 Ensure IPv6 loopback traffic is configured | CIS Ubuntu Linux 18.04 LXD Host L1 Server v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.4.2.2 Ensure IPv6 loopback traffic is configured | CIS Ubuntu Linux 18.04 LXD Host L1 Workstation v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
