| 3.1.1 Disable IPv6 | CIS Fedora 19 Family Linux Server L2 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.1.1 Disable IPv6 - grub.cfg | CIS Debian Family Workstation L2 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.1.1 Disable IPv6 - sysctl.conf default | CIS Debian Family Server L2 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.3.2 Ensure /etc/hosts.allow is configured | CIS Aliyun Linux 2 L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.3.2 Ensure /etc/hosts.allow is configured | CIS Debian 9 Server L1 v1.0.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.3.2 Ensure IPv6 redirects are not accepted - 'net.ipv6.conf.all.accept_redirects = 0 /etc/sysctl.conf /etc/sysctl.d/*' | CIS Amazon Linux v2.1.0 L1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.1.2 Ensure loopback traffic is configured - input | CIS Aliyun Linux 2 L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.1.3 Ensure outbound and established connections are configured | CIS Debian 9 Workstation L1 v1.0.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.2 Ensure IPv6 loopback traffic is configured | 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 Workstation L1 v1.0.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.3 Ensure IPv6 outbound and established connections are configured | CIS Aliyun Linux 2 L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.4 Ensure IPv6 firewall rules exist for all open ports | 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 Debian 9 Workstation L1 v1.0.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.6 Ensure base chains exist - hook output | CIS Fedora 19 Family Linux Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.8 Ensure outbound and established connections are configured | CIS Fedora 19 Family Linux Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.9 Ensure default deny firewall policy - hook output | CIS Fedora 19 Family Linux Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.3.1.3 Ensure firewalld is not installed or stopped and masked - is-enabled | CIS Fedora 19 Family Linux Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.3.2.1 Ensure default deny firewall policy - Chain INPUT | CIS Fedora 19 Family Linux Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.3.2.3 Ensure outbound and established connections are configured | CIS Fedora 19 Family Linux Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.3.2.5 Ensure iptables rules are saved - FORWARD | CIS Fedora 19 Family Linux Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.3.2.6 Ensure iptables is enabled and running - status | CIS Fedora 19 Family Linux Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.3.3.5 Ensure ip6tables rules are saved - OUTPUT | CIS Fedora 19 Family Linux Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.1.2 Ensure iptables-persistent is not installed | CIS Debian Family Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.1.4 Ensure loopback traffic is configured - allow in v6 | CIS Debian Family Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.1.4 Ensure loopback traffic is configured - allow out v6 | CIS Debian Family Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.1.7 Ensure default deny firewall policy | CIS Debian Family Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2 Ensure default deny firewall policy - Chain OUTPUT | CIS Amazon Linux v2.1.0 L1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2.2 Ensure IPv4 loopback traffic is configured - INPUT | CIS CentOS 6 Workstation L1 v3.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2.4 Ensure a table exists | CIS Debian Family Workstation L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2.5 Ensure base chains exist - forward | CIS Debian Family Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2.6 Ensure loopback traffic is configured - v4 | CIS Debian Family Workstation L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2.6 Ensure loopback traffic is configured - v6 | CIS Debian Family Workstation L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2.8 Ensure default deny firewall policy - input | CIS Debian Family Workstation L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2.8 Ensure default deny firewall policy - output | CIS Debian Family Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.1 Ensure IPv6 default deny firewall policy - INPUT | CIS CentOS 6 Workstation L1 v3.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.1.1 Ensure iptables packages are installed - iptables-persistent | CIS Debian Family Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.1.1 Ensure iptables packages are installed - iptables-persistent | 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 Workstation L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.2 Ensure IPv6 loopback traffic is configured - INPUT | CIS CentOS 6 Workstation L1 v3.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.2.1 Ensure default deny firewall policy - FORWARD | CIS Debian Family Workstation L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.2.3 Ensure outbound and established connections are configured | CIS Debian Family Workstation L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.3.1 Ensure IPv6 default deny firewall policy - Chain INPUT | CIS Debian Family Workstation L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.3.1 Ensure IPv6 default deny firewall policy - Chain OUTPUT | 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 - ss | CIS CentOS 6 Workstation L1 v3.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 7.1.2 Disable Send Packet Redirects - net.ipv4.conf.all.send_redirects | CIS Debian Linux 7 L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 7.1.2 Disable Send Packet Redirects - net.ipv4.conf.default.send_redirects | CIS Debian Linux 7 L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 7.2.1 Disable Source Routed Packet Acceptance - net.ipv4.conf.default.accept_source_route | CIS Debian Linux 7 L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 7.2.2 Disable ICMP Redirect Acceptance - net.ipv4.conf.default.accept_redirects | CIS Debian Linux 7 L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 7.2.3 Disable Secure ICMP Redirect Acceptance - net.ipv4.conf.default.secure_redirects | CIS Debian Linux 7 L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| Windows Defender Firewall: Protect all network connections | MSCT Windows Server 2019 MS v1.0.0 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
