Major Hayden d0f4a70d9c V-3869{2,4}: Lock inactive accounts
Implements: blueprint security-hardening

Change-Id: I96ff7de8398c1fb60c73e169e597dd354121c05e
2015-10-22 07:57:31 -05:00

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**Opt-in required**
By default, Ubuntu doesn't require that inactive accounts are locked after a
period of time. The STIG requires that accounts with 35 days of activity are
locked.
Deployers must opt-in for this change by setting the
``inactive_account_lock_days`` Ansible variable. The STIG requires this to be
set to 35 days at a maximum. The Ansible tasks will not make any changes to
``/etc/default/useradd`` unless ``inactive_account_lock_days`` is set.