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Diffstat (limited to 'contrib/slapd-modules/smbk5pwd/README')
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diff --git a/contrib/slapd-modules/smbk5pwd/README b/contrib/slapd-modules/smbk5pwd/README new file mode 100644 index 0000000..2f02195 --- /dev/null +++ b/contrib/slapd-modules/smbk5pwd/README @@ -0,0 +1,94 @@ +This directory contains a slapd overlay, smbk5pwd, that extends the +PasswordModify Extended Operation to update Kerberos keys and Samba +password hashes for an LDAP user. + +The Kerberos support is written for Heimdal using its hdb-ldap backend. +If a PasswordModify is performed on an entry that has the krb5KDCEntry +objectclass, then the krb5Key and krb5KeyVersionNumber will be updated +using the new password in the PasswordModify request. Additionally, a +new "{K5KEY}" password hash mechanism is provided. For krb5KDCEntries that +have this hash specifier in their userPassword attribute, Simple Binds +will be checked against the Kerberos keys of the Entry. No data is +needed after the "{K5KEY}" hash specifier in the userPassword, it is +looked up from the Entry directly. + +The Samba support is written using the Samba 3.0 LDAP schema. If a +PasswordModify is performed on an entry that has the sambaSamAccount +objectclass, then the sambaNTPassword and sambaPwdLastSet attributes +will be updated accordingly. + +To use the overlay, add: + + include <path to>/krb5-kdc.schema + include <path to>/samba.schema + + moduleload <path to>smbk5pwd.so + ... + + database mdb + ... + overlay smbk5pwd + +to your slapd configuration file. (You should obtain the necessary schema +files from the Heimdal and/or Samba distributions. At this time, there +are several known errors in these schema files that you will have to +correct before they will load in slapd. As of Samba 3.0 the schema looks +fine as shipped.) + +All modules compiled in (i.e. krb5 and samba) are enabled; the statement + + smbk5pwd-enable <module> + +can be used to enable only the desired one(s); legal values for <module> +are "krb5", "samba" and "shadow", if they are respectively enabled by defining +DO_KRB5, DO_SAMBA and DO_SHADOW. + +The samba module also supports the + + smbk5pwd-must-change <seconds> + +which sets the "sambaPwdMustChange" attribute accordingly to force passwd +expiry. A value of 0 disables this feature. + +The overlay now supports table-driven configuration, and thus can be run-time +loaded and configured via back-config. The layout of the entry is + + # {0}smbk5pwd, {1}bdb, config + dn: olcOverlay={0}smbk5pwd,olcDatabase={1}bdb,cn=config + objectClass: olcOverlayConfig + objectClass: olcSmbK5PwdConfig + olcOverlay: {0}smbk5pwd + olcSmbK5PwdEnable: krb5 + olcSmbK5PwdEnable: samba + olcSmbK5PwdMustChange: 2592000 + +which enables both krb5 and samba modules with a password expiry time +of 30 days. + +The provided Makefile builds both Kerberos and Samba support by default. +You must edit the Makefile to insure that the correct include and library +paths are used. You can change the DEFS macro if you only want one or the +other of Kerberos or Samba support. + +This overlay is only set up to be built as a dynamically loaded module. +On most platforms, in order for the module to be usable, all of the +library dependencies must also be available as shared libraries. + +If you need to build the overlay statically, you will have to move it into the +slapd/overlays directory and edit the Makefile and overlays.c to reference +it. You will also have to define SLAPD_OVER_SMBK5PWD to SLAPD_MOD_STATIC, +and add the relevant libraries to the main slapd link command. + +--- +This work is part of OpenLDAP Software <http://www.openldap.org/>. +Copyright 2004-2022 The OpenLDAP Foundation. +Portions Copyright 2004-2005 Howard Chu, Symas Corp. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted only as authorized by the OpenLDAP +Public License. + +A copy of this license is available in the file LICENSE in the +top-level directory of the distribution or, alternatively, at +<http://www.OpenLDAP.org/license.html>. + |