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62 lines
2.2 KiB
62 lines
2.2 KiB
Active Directory
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================
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============== ===== ========
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Authentication Users Password
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============== ===== ========
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✔ ✔ ✔
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============== ===== ========
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Presentation
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------------
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The Active Directory module is based on
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:doc:`LDAP module<authldap>`, with the following features:
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- Specific default values for filters to match AD schema
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- Compatible password modification
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- Reset password on next logon workflow
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Configuration
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-------------
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The configuration is the same as the :doc:`LDAP module<authldap>`.
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AD password policy
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------------------
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AD password policy does not follow the LDAP RFC, but Microsoft has
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implemented its own policy. LemonLDAP::NG implements partially the
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policy:
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- when pwdLastSet = 0 in the user entry, it means that password has
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been reset, and a form is displayed to the user to change his
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password.
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- when computed virtual attribute 'msDS-User-Account-Control-Computed'
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as 6th flag set to 8, the password is considered expired (support
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from Windows Server 2003). It is too late for the user to do
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anything. He must contact his administrator.
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- a warning before password expiration is possible in AD, but only in
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GPO (Computer Configuration\Windows Settings\Local Policies\Security
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Options under Interactive Logon: Prompt user to change password
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before expiration). However it as no reality in LDAP referential. A
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"password warning time before password expiration" variable can be
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specified in LemonLDAP::NG to do so.
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.. attention::
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Note: since AD 2012, each user can have a specific
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password expiration policy. Then, the "maximum password age" can have
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different values. This is currently unsupported in LemonLDAP::NG because
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every policy must be computed with their precedence to know which
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maximum password age to apply.
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To configure warning before password expiration, you must set two
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variables in Active Directory parameters in Manager:
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- **Password max age** : number of seconds after the last password
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change, before it expires. It must match AD policy
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- **Password expire warning** : number of seconds between password
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expiration and the date from which user is warned his password will
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expire.
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