buluma.auditd

Ansible Role auditd

This role installs and sets up auditd on your system.

GitHub	Version	Issues	Pull Requests	Downloads

Example Playbook

Here’s an example playbook, checked on every update:

---
- name: Install and setup auditd
  hosts: all
  become: true
  gather_facts: true

  roles:
    - role: buluma.auditd
      auditd_start_service: false
      auditd_local_events: "no"
      auditd_rules:
        - file: /var/log/audit/
          keyname: auditlog
        - file: /etc/audit/
          permissions:
            - write
            - attribute_change
          keyname: auditconfig
        - file: /etc/libaudit.conf
          permissions:
            - write
            - attribute_change
          keyname: auditconfig
        - file: /etc/audisp/
          permissions:
            - write
            - attribute_change
          keyname: audispconfig
        - file: /sbin/auditctl
          permissions:
            - execute
          keyname: audittools
        - file: /sbin/auditd
          permissions:
            - execute
          keyname: audittools
        - syscall: open
          action: always
          filter: exit
          filters:
            - auid!=4294967295
            - auid!=unset
          keyname: my_keyname
          arch: b32
        - syscall: adjtimex
          action: always
          filter: exit
          keyname: time_change
        - syscall: settimeofday
          action: always
          filter: exit
          keyname: time_change
        - action: always
          filter: exit
          filters:
            - path=/bin/ping
            - perm=x
            - auid>=500
            - auid!=4294967295
          keyname: privileged

To prepare the machine, you can use this:

---
- name: Prepare the machine
  hosts: all
  become: true
  gather_facts: false

  roles:
    - role: buluma.bootstrap

For more details, check this full explanation about using these roles.

Role Variables

Default variable values are found in defaults/main.yml:

---
# Default settings for auditd
auditd_buffer_size: 32768
auditd_fail_mode: 1
auditd_maximum_rate: 60
auditd_enable_flag: 1
auditd_local_events: "yes"
auditd_write_logs: "yes"
auditd_log_file: /var/log/audit/audit.log
auditd_log_group: root
auditd_log_format: RAW
auditd_flush: incremental_async
auditd_freq: 50
auditd_max_log_file: 8
auditd_num_logs: 5
auditd_priority_boost: 4
auditd_disp_qos: lossy
auditd_dispatcher: /sbin/audispd
auditd_name_format: none
auditd_max_log_file_action: rotate
auditd_space_left: "75"
auditd_space_left_action: syslog
auditd_verify_email: "yes"
auditd_action_mail_acct: root
auditd_admin_space_left: 50
auditd_admin_space_left_action: suspend
auditd_disk_full_action: suspend
auditd_disk_error_action: suspend
auditd_use_libwrap: "yes"
auditd_tcp_listen_queue: 5
auditd_tcp_max_per_addr: 1
auditd_tcp_client_max_idle: 0
auditd_enable_krb5: "no"
auditd_krb5_principal: auditd
auditd_distribute_network: "no"

# Control whether to manage rules or not.
auditd_manage_rules: true

# Define the architecture for specific rules.
auditd_default_arch: b64

# Option to control starting the auditd service.
auditd_start_service: true