| 3.1.1 Disable IPv6 | CIS Ubuntu Linux 16.04 LTS Server L2 v2.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.1 Ensure source routed packets are not accepted - 'sysctl net.ipv4.conf.all.accept_source_route' | CIS Ubuntu Linux 14.04 LTS Server L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.2 Ensure ICMP redirects are not accepted - 'sysctl net.ipv4.conf.all.accept_redirects' | CIS Ubuntu Linux 14.04 LTS Server L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.3 Ensure secure ICMP redirects are not accepted - 'sysctl net.ipv4.conf.all.secure_redirects' | CIS Ubuntu Linux 14.04 LTS Server L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.3 Ensure secure ICMP redirects are not accepted - 'sysctl net.ipv4.conf.default.secure_redirects' | CIS Ubuntu Linux 14.04 LTS Workstation L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.5 Ensure broadcast ICMP requests are ignored (sysctl.conf/sysctl.d) | CIS Ubuntu Linux 14.04 LTS Server L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.7 Ensure Reverse Path Filtering is enabled - 'net.ipv4.conf.default.rp_filter' (sysctl.conf/sysctl.d) | CIS Ubuntu Linux 14.04 LTS Workstation L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.8 Ensure TCP SYN Cookies is enabled (sysctl exec) | CIS Ubuntu Linux 14.04 LTS Server L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.3.1 Ensure IPv6 router advertisements are not accepted - 'net.ipv6.conf.default.accept_ra' (sysctl.conf/sysctl.d) | CIS Ubuntu Linux 14.04 LTS Server L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.3.2 Ensure IPv6 redirects are not accepted - 'net.ipv6.conf.default.accept_redirects' (sysctl.conf/sysctl.d) | CIS Ubuntu Linux 14.04 LTS Workstation L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.3.2 Ensure IPv6 redirects are not accepted - 'sysctl net.ipv6.conf.all.accept_redirects' | CIS Ubuntu Linux 14.04 LTS Workstation L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.2.2 Ensure default deny firewall policy | CIS Ubuntu Linux 18.04 LXD Container L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.2.5 Ensure firewall rules exist for all open ports | CIS Ubuntu Linux 18.04 LXD Container L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.3.3 Ensure base chains exist - input | CIS Ubuntu Linux 18.04 LXD Container L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.3.4 Ensure loopback traffic is configured - lo | CIS Ubuntu Linux 18.04 LXD Container L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.3.4 Ensure loopback traffic is configured - v4 | CIS Ubuntu Linux 18.04 LXD Container L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.4.3.4 Ensure loopback traffic is configured - v6 | CIS Ubuntu Linux 18.04 LXD Container L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.1.3 Ensure ufw service is enabled - systemctl | CIS Ubuntu Linux 16.04 LTS Workstation L1 v2.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.1.4 Ensure ufw loopback traffic is configured - v6 | CIS Ubuntu Linux 16.04 LTS Server L1 v2.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.1.6 Ensure ufw firewall rules exist for all open ports | CIS Ubuntu Linux 16.04 LTS Server L1 v2.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.1.6 Ensure ufw firewall rules exist for all open ports | CIS Ubuntu Linux 16.04 LTS Workstation L1 v2.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.3 Ensure iptables are flushed with nftables - v6 | CIS Ubuntu Linux 16.04 LTS Server L1 v2.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.5 Ensure nftables base chains exist - forward | CIS Ubuntu Linux 16.04 LTS Server L1 v2.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.5 Ensure nftables base chains exist - input | CIS Ubuntu Linux 16.04 LTS Server L1 v2.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.6 Ensure nftables loopback traffic is configured - lo | CIS Ubuntu Linux 16.04 LTS Server L1 v2.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.6 Ensure nftables loopback traffic is configured - lo | CIS Ubuntu Linux 16.04 LTS Workstation L1 v2.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.7 Ensure nftables outbound and established connections are configured | CIS Ubuntu Linux 16.04 LTS Workstation L1 v2.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.3.1.1 Ensure iptables packages are installed - iptables | CIS Ubuntu Linux 16.04 LTS Server L1 v2.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.3.1.1 Ensure iptables packages are installed - iptables-persistent | CIS Ubuntu Linux 16.04 LTS Workstation L1 v2.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.3.1.2 Ensure nftables is not installed with iptables | CIS Ubuntu Linux 16.04 LTS Server L1 v2.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.3.1.2 Ensure nftables is not installed with iptables | CIS Ubuntu Linux 16.04 LTS Workstation L1 v2.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.3.2.3 Ensure iptables outbound and established connections are configured | CIS Ubuntu Linux 16.04 LTS Workstation L1 v2.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.3.3.4 Ensure ip6tables firewall rules exist for all open ports | CIS Ubuntu Linux 16.04 LTS Workstation L1 v2.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2 Ensure default deny firewall policy - 'Chain INPUT' | CIS Ubuntu Linux 14.04 LTS Workstation L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2.1 Ensure ufw service is enabled - systemctl | CIS Ubuntu Linux 18.04 LXD Host L1 Server v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3 Ensure loopback traffic is configured - input | CIS Ubuntu Linux 14.04 LTS Server L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3 Ensure loopback traffic is configured - output | CIS Ubuntu Linux 14.04 LTS Server L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.1 Ensure iptables are flushed - v4 | CIS Ubuntu Linux 18.04 LXD Host L1 Workstation v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.1 Ensure iptables are flushed - v6 | CIS Ubuntu Linux 18.04 LXD Host L1 Workstation v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.2 Ensure a table exists | 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 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 Workstation v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.4.2.1 Ensure IPv6 default deny firewall policy - 'Chain INPUT' | CIS Ubuntu Linux 18.04 LXD Host L1 Server v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.4.2.1 Ensure IPv6 default deny firewall policy - 'Chain INPUT' | CIS Ubuntu Linux 18.04 LXD Host L1 Workstation v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.4.2.1 Ensure IPv6 default deny firewall policy - 'Chain OUTPUT' | CIS Ubuntu Linux 18.04 LXD Host L1 Server v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.5 Ensure firewall rules exist for all open ports | CIS Ubuntu Linux 14.04 LTS Server L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 7.1.3 Ensure that the Promiscuous Mode policy is set to reject | CIS VMware ESXi 5.1 v1.0.1 Level 1 | VMware | SYSTEM AND COMMUNICATIONS PROTECTION |
| 7.2 Ensure that the vSwitch MAC Address Change policy is set to reject | CIS VMware ESXi 5.5 v1.2.0 Level 1 | VMware | SYSTEM AND COMMUNICATIONS PROTECTION |
| 7.3 Ensure that the vSwitch Promiscuous Mode policy is set to reject | CIS VMware ESXi 5.5 v1.2.0 Level 1 | VMware | SYSTEM AND COMMUNICATIONS PROTECTION |
| IBM i : Automatic Configuration of Virtual Devices (QAUTOVRT) - '0' | IBM System i Security Reference for V7R3 | AS/400 | SYSTEM AND COMMUNICATIONS PROTECTION |
