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

Provided by: slapd-smbk5pwd_2.4.45+dfsg-1ubuntu1.11_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 sambaLMPassword and
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}bdb, 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