Pam unix with LDAP server account lockout

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Overview

In order to support a legacy application, I have to meet the following requirements:

  • pam_unix must be used.
  • The Directory Server must only store user passwords in {crypt} format.
  • User accounts should be locked out indefinitely (i.e., the administrator must unlock the account) after 3 unsuccessful attempts.

Run the following commands on both Directory Servers: 

# dsconf set-server-prop pwd-lockout-enabled:on
# dsconf set-server-prop pwd-max-failure-count:3
# dsconf set-server-prop pwd-lockout-duration:disabled
  • The Directory Server must only store user passwords in crypt format.

The default user password storage scheme is SSHA. To change it to crypt, run the following command on both Directory Servers: 

# dsconf set-server-prop pwd-storage-scheme:crypt


Requirements

The Directory Server must only store passwords in crypt format

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