rhel_system_auth.j2

{{ ansible_managed | comment }}

#%PAM-1.0
{% if os_auth_retries > 0 %}
auth        required      pam_tally2.so deny={{ os_auth_retries }} onerr=fail unlock_time={{ os_auth_lockout_time }}
{% endif %}
auth        required      pam_env.so
auth        sufficient    pam_unix.so nullok try_first_pass
auth        requisite     pam_succeed_if.so uid >= 500 quiet
auth        required      pam_deny.so

{% if os_auth_retries > 0 %}
account     required      pam_tally2.so
{% endif %}
account     required      pam_unix.so
account     sufficient    pam_localuser.so
account     sufficient    pam_succeed_if.so uid < 500 quiet
account     required      pam_permit.so

{% if (os_auth_pam_passwdqc_enable|bool) %}
  {%- if ((ansible_facts.os_family == 'RedHat' and ansible_facts.distribution_version|int is version('7', '>=')) or ansible_facts.distribution == 'Amazon') %}
password    required      pam_pwquality.so {{ os_auth_pam_pwquality_options }}
  {%- else %}
password    requisite     pam_passwdqc.so {{ os_auth_pam_passwdqc_options }}
  {%- endif %}
{% else %}
password    requisite     pam_cracklib.so try_first_pass retry=3 type=
{% endif %}


# NSA 2.3.3.5 Upgrade Password Hashing Algorithm to SHA-512
# NSA 2.3.3.6 Limit Password Reuse
password    sufficient    pam_unix.so sha512 shadow nullok try_first_pass use_authtok remember=5
password    required      pam_deny.so

session     optional      pam_keyinit.so revoke
session     required      pam_limits.so
session     [success=1 default=ignore] pam_succeed_if.so service in crond quiet use_uid
session     required      pam_unix.so