| Disable Automounting | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure /etc/hosts.deny is configured | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| Ensure AIDE is installed - dpkg | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure all users' home directories exist | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure at/cron is restricted to authorized users - cron.allow | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | ACCESS CONTROL |
| Ensure broadcast ICMP requests are ignored - sysctl | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| Ensure changes to system administration scope (sudoers) is collected - /etc/sudoers.d | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure DCCP is disabled | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure discard services are not enabled | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure discretionary access control permission modification events are collected - auditctl b32 setxattr | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure events that modify date and time information are collected - audit.rules 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 - /etc/issue | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure events that modify the system's network environment are collected - b64 sethostname | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure events that modify user/group information are collected - auditctl /etc/passwd | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure filesystem integrity is regularly checked | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | SYSTEM AND INFORMATION INTEGRITY |
| Ensure GDM login banner is configured - banner-message-enable | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | ACCESS CONTROL |
| Ensure HTTP Proxy Server is not enabled | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure ICMP redirects are not accepted - /etc/sysctl ipv4 default accept | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| Ensure IMAP and POP3 server is not enabled | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure IP forwarding is disabled - /etc/sysctl | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| Ensure IPv6 router advertisements are not accepted - sysctl ipv6 default accept | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| Ensure LDAP client is not installed - dpkg | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure LDAP client is not installed - rpm | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure mail transfer agent is configured for local-only mode - main.cf | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure mail transfer agent is configured for local-only mode - netstat listening | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure mounting of FAT filesystems is disabled - lsmod | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure mounting of jffs2 filesystems is disabled - lsmod | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure mounting of squashfs filesystems is disabled - lsmod | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure mounting of squashfs filesystems is disabled - modprobe | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure no duplicate UIDs exist | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | IDENTIFICATION AND AUTHENTICATION |
| Ensure no unconfined daemons exist | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | ACCESS CONTROL |
| Ensure no ungrouped files or directories exist | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | ACCESS CONTROL |
| Ensure no users have .forward files | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure no users have .netrc files | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure noexec option set on /tmp partition | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | ACCESS CONTROL |
| Ensure ntp is configured - OPTIONS or ExecStart -u ntp:ntp | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure only approved MAC algorithms are used | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| Ensure packet redirect sending is disabled - /etc/sysctl ipv4 all send | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| Ensure SCTP is disabled | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure SSH LogLevel is set to INFO | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |
| Ensure SSH PermitUserEnvironment is disabled | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure SSH Protocol is set to 2 | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure SSH warning banner is configured | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | ACCESS CONTROL |
| Ensure TCP SYN Cookies is enabled - sysctl | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| Ensure TCP Wrappers is installed - rpm | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| Ensure users own their home directories | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure users' .netrc Files are not group or world accessible | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Ensure users' dot files are not group or world writable | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | CONFIGURATION MANAGEMENT |
| Lockout for failed password attempts - 'auth required pam_tally2.so onerr=fail audit silent deny=5 unlock_time=900' | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | ACCESS CONTROL |
| NTP is not installed - server | Tenable Cisco Firepower Management Center OS Best Practices Audit | Unix | AUDIT AND ACCOUNTABILITY |