Ubuntu Manpage: slapo-smbk5pwd - Samba & Kerberos password sync overlay to slapd

Provided by: slapd-contrib_2.6.9+dfsg-2ubuntu1_amd64

NAME

       slapo-smbk5pwd - Samba & Kerberos password sync overlay to slapd

SYNOPSIS

       ETCDIR/slapd.conf

              include <path to>/krb5-kdc.schema

              include <path to>/samba.schema

              moduleload smbk5pwd.so

               ...

              database mdb

               ...

              overlay smbk5pwd

DESCRIPTION

       The  smbk5pwd  overlay  to slapd(8) overloads the Password Modify Extended Operation (RFC 3062) to update
       Kerberos keys and Samba password hashes for an LDAP user, as well as  updating  password  change  related
       attributes for Kerberos, Samba and/or UNIX user accounts.

       The  Samba  support  is  written using the Samba 3.0 LDAP schema; Kerberos support is written for Heimdal
       using its hdb-ldap backend.

       Additionally, a new {K5KEY} password hash mechanism is provided.  For krb5KDCEntry objects that have this
       scheme specifier in their userPassword attribute, Simple Binds will be checked against the Kerberos  keys
       of  the entry.  No data is needed after the {K5KEY} scheme specifier in the userPassword, it is looked up
       from the entry directly.

CONFIGURATION

The smbk5pwd overlay supports the following slapd.conf configuration options, which should appear after
the overlay directive:

smbk5pwd-enable <module>
can be used to enable only the desired modules. Legal values for <module> are

krb5 If the user has the krb5KDCEntry objectclass, update the krb5Key and krb5KeyVersionNumber
attributes using the new password in the Password Modify operation, provided the Kerberos
account is not expired. Exiration is determined by evaluating the krb5ValidEnd attribute.

samba If the user is a sambaSamAccount object, synchronize the sambaNTPassword to the password
entered in the Password Modify operation, and update sambaPwdLastSet accordingly.

shadow Update the attribute shadowLastChange, if the entry has the objectclass shadowAccount.

By default all modules compiled in are enabled. Setting the config statement restricts the
enabled modules to the ones explicitly mentioned.

smbk5pwd-can-change <seconds>
If the samba module is enabled and the user is a sambaSamAccount, update the attribute
sambaPwdCanChange to point <seconds> into the future, essentially denying any Samba password
change until then. A value of 0 disables this feature.

smbk5pwd-must-change <seconds>
If the samba module is enabled and the user is a sambaSamAccount, update the attribute
sambaPwdMustChange to point <seconds> into the future, essentially setting the Samba password
expiration time. A value of 0 disables this feature.

Alternatively, the overlay supports table-driven configuration, and thus can be run-time loaded and
configured via back-config.

EXAMPLE

       The layout of a slapd.d based, table-driven configuration entry looks like:

               # {0}smbk5pwd, {1}mdb, config
               dn: olcOverlay={0}smbk5pwd,olcDatabase={1}mdb,cn=config
               objectClass: olcOverlayConfig
               objectClass: olcSmbK5PwdConfig
               olcOverlay: {0}smbk5pwd
               olcSmbK5PwdEnable: krb5
               olcSmbK5PwdEnable: samba
               olcSmbK5PwdMustChange: 2592000

       which enables both krb5 and samba modules with a Samba password expiration time of  30  days  (=  2592000
       seconds).

ACKNOWLEDGEMENTS