| Ensure all groups in /etc/passwd exist in /etc/group | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | ACCESS CONTROL |
| Ensure all users last password change date is in the past | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | IDENTIFICATION AND AUTHENTICATION |
| Ensure at/cron is restricted to authorized users - at.allow | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | ACCESS CONTROL |
| Ensure audit logs are not automatically deleted | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure Avahi Server is not enabled | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure changes to system administration scope (sudoers) is collected - auditctl /etc/sudoers | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure chrony is configured - NTP server | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure default deny firewall policy - Chain OUTPUT | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| Ensure default group for the root account is GID 0 | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | ACCESS CONTROL |
| Ensure default user shell timeout is 900 seconds or less - /etc/profile | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | ACCESS CONTROL |
| Ensure discretionary access control permission modification events are collected - b32 chown fchown | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure DNS Server is not enabled | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure echo services are not enabled | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure events that modify date and time information are collected - audit.rules b64 clock_settime | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure events that modify date and time information are collected - auditctl b64 adjtimex | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure events that modify the system's network environment are collected - auditctl /etc/hosts | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure events that modify user/group information are collected - /etc/gshadow | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure events that modify user/group information are collected - /etc/shadow | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure FTP Server is not enabled | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure GDM login banner is configured - banner-message-text | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | ACCESS CONTROL |
| Ensure GDM login banner is configured - file-db | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | ACCESS CONTROL |
| Ensure IPv6 redirects are not accepted - /etc/sysctl ipv6 all accept | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| Ensure IPv6 redirects are not accepted - /etc/sysctl ipv6 default accept | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| Ensure IPv6 router advertisements are not accepted - /etc/sysctl ipv6 all accept | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| Ensure kernel module loading and unloading is collected - insmod | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure LDAP client is not installed - zypper | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure login and logout events are collected - faillog | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure loopback traffic is configured | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| Ensure mounting of hfs filesystems is disabled - modprobe | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure NIS Client is not installed - rpm | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure no duplicate GIDs exist | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | IDENTIFICATION AND AUTHENTICATION |
| Ensure no users have .rhosts files | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure nodev option set on /tmp partition | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | ACCESS CONTROL |
| Ensure nodev option set on removable media partitions | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure ntp is configured - server | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure packet redirect sending is disabled - sysctl ipv4 all send | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| Ensure password creation requirements are configured - /etc/pam.d/* dcredit | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | IDENTIFICATION AND AUTHENTICATION |
| Ensure password creation requirements are configured - /etc/pam.d/* minlen | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | IDENTIFICATION AND AUTHENTICATION |
| Ensure password creation requirements are configured - pwquality.conf lcredit | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | IDENTIFICATION AND AUTHENTICATION |
| Ensure Reverse Path Filtering is enabled - /etc/sysctl ipv4 default rp_filter | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| Ensure Reverse Path Filtering is enabled - sysctl ipv4 all rp_filter | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| Ensure Reverse Path Filtering is enabled - sysctl ipv4 default rp_filter | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| Ensure SNMP Server is not enabled | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure SSH Idle Timeout Interval is configured - ClientAliveInterval | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | ACCESS CONTROL |
| Ensure SSH MaxAuthTries is set to 4 or less | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | ACCESS CONTROL |
| Ensure TCP Wrappers is installed - zypper | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| Ensure unsuccessful unauthorized file access attempts are collected - b64 EPERM | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure updates, patches, and additional security software are installed - apt-get | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | SYSTEM AND INFORMATION INTEGRITY |
| Ensure use of privileged commands is collected | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure xinetd is not enabled | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |