Creating a Custom PAM Profile

Describes how to manually ensure a MapR-unique PAM.

If you wish to ensure that MapR uses a MapR-unique PAM configuration, you can:

  • Leave the /etc/pam.d/sudo file as is - MapR strongly recommends against manually editing the /etc/pam.d/sudo file.

  • Create your own PAM profile in /etc/pam.d, naming it mapr-admin.

  • Manually edit mapr.login.conf and other ecosystem component configuration files to use mapr-admin only.

Example /etc/pam.d/mapr-admin File

Below are some simple examples of what might work in the PAM profile by editing mapr-admin or a different PAM profile.
Note: Be sure to consult with your Linux administrator before modifying PAM profiles.
account     required      pam_unix.so
account     sufficient    pam_succeed_if.so uid < 1000 quiet
#Uncomment the following line if ldap is used for user authentication.
#account     [default=bad success=ok user_unknown=ignore] pam_ldap.so
account     required      pam_permit.so
 
auth    sufficient      pam_unix.so nullok_secure 
auth    requisite       pam_succeed_if.so uid >= 1000 quiet
auth    sufficient      pam_ldap.so use_first_pass
auth    required        pam_deny.so
 
password    sufficient    pam_unix.so md5 obscure min=4 max=8 nullok try_first_pass
password    sufficient    pam_ldap.so
password    required      pam_deny.so
 
session     required      pam_limits.so
session     required      pam_unix.so
session     optional      pam_ldap.so
Note:

The file /etc/pam.d/sudo should be modified only with care and only when absolutely necessary.