Greetings,
I've been trying to get openldap working with the ppolicy stuff for the last week. I think I've got things setup correctly, but the account lockout stuff isn't working and I can't figure out what I've done wrong.
I've attached below the slapd.conf, ldap.conf and the ldif file I used to set up the test server. I'm relatively inexperienced in LDAP so I double checked things, but maybe....
If I include the ACL access part in the slapd.conf file (shown below), I can't ssh into a client that is using the server to authenticate. If I remove the access section, I can connect just fine, but then it authenticates me even though an ldapsearch with the -e ppolicy flag shows "ldap_bind: Invalid credentials (49); Account locked"
I'm running openldap 2.3.39 on Cent OS 5.0. I'm starting ldap with the -d -1 option and don't see any error messages. Any suggestions?
Thanks,
Bob
================================
Below are the files used to populate the ppolicy attributes, and the slapd.conf and ldap.conf files on the server.
=============================== 1) The following was used to populate the LDAP server, with the top level objects and the ppolicy values ===============================
dn: dc=foo,dc=bar,dc=edu objectClass: top objectClass: organization objectClass: dcObject o: foo dc: foo
dn: ou=People, dc=foo,dc=bar,dc=edu objectClass: top objectClass: organizationalUnit ou: People
dn: ou=Group,dc=foo,dc=bar,dc=edu objectClass: top objectclass: organizationalUnit ou: Group
dn: ou=Policies, dc=foo,dc=bar,dc=edu objectClass: top objectClass: organizationalUnit ou: Policies
dn: cn=Standard Policy, ou=Policies, dc=foo,dc=bar,dc=edu objectClass: top objectClass: device objectClass: pwdPolicy cn: Standard Policy pwdAttribute: 2.5.4.35 # min passwd change of 7 days pwdMinAge: 604800 # max passwd change of 90 days pwdMaxAge: 7776000 # expire warning in 7 days pwdExpireWarning: 604800 # Can't reuse the last 24 passwords pwdInHistory: 24 # the server must verify the new passwd for changes to be made pwdCheckQuality: 2 # min passwd length pwdMinLength: 8 # Number of failed passwd attempts before lockout pwdMaxFailure: 3 # lockout user for failed attempts pwdLockout: TRUE # only lockout user for 15 minutes pwdLockoutDuration: 900 # Do not allow expired passwd's to access system pwdGraceAuthNLimit: 0 # only reset passwd attempt count on successful login pwdFailureCountInterval: 0 # specifies user must change passwd after admin has reset it pwdMustChange: TRUE # users can change their passwords pwdAllowUserChange: TRUE # Allows the user to change their passwd without typing in the old. pwdSafeModify: TRUE
=============================== 2) Here is the slapd.conf file ===============================
# master slapd config -- for testing # $OpenLDAP: pkg/ldap/tests/data/slapd-ppolicy.conf,v 1.6.2.7 2007/01/02 21:44:12 kurt Exp $ ## This work is part of OpenLDAP Software http://www.openldap.org/. ## ## Copyright 1998-2007 The OpenLDAP Foundation. ## 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.
include /etc/openldap/schema/core.schema include /etc/openldap/schema/cosine.schema include /etc/openldap/schema/inetorgperson.schema include /etc/openldap/schema/openldap.schema include /etc/openldap/schema/nis.schema include /etc/openldap/schema/ppolicy.schema pidfile /var/lib/ldap/run/slapd.pid argsfile /var/lib/ldap/run/slapd.args
#mod#modulepath ../servers/slapd/back-bdb/ #mod#moduleload back_bdb.la #monitormod#modulepath ../servers/slapd/back-monitor/ #monitormod#moduleload back_monitor.la modulepath /usr/sbin/openldap/ moduleload ppolicy.la
####################################################################### # database definitions #######################################################################
database bdb suffix "dc=foo,dc=bar,dc=edu" directory /var/lib/ldap/openldap-data rootdn "cn=Manager,dc=foo,dc=bar,dc=edu" rootpw {SSHA}<root slappasswd went here> index objectClass eq #hdb#index objectClass eq #ldbm#index objectClass eq overlay ppolicy ppolicy_default "cn=Standard Policy,ou=Policies,dc=foo,dc=bar,dc=edu" ppolicy_use_lockout
access to attr=userPassword by self write by anonymous auth by dn.base="cn=Admin,dc=foo,dc=bar,dc=edu" write by dn.base="cn=Manager,dc=foo,dc=bar,dc=edu" write by * none
access to * by self write by dn.base="cn=Admin,dc=foo,dc=bar,dc=edu" write by dn.base="cn=Manager,dc=foo,dc=bar,dc=edu" write by * read
#database monitor
================================================== 3) Here is the ldap.conf file on the client and server ==================================================
# @(#)$Id: ldap.conf,v 1.38 2006/05/15 08:13:31 lukeh Exp $ # # This is the configuration file for the LDAP nameservice # switch library and the LDAP PAM module. # # The man pages for this file are nss_ldap(5) and pam_ldap(5) # # PADL Software # http://www.padl.com #
# Your LDAP server. Must be resolvable without using LDAP. # Multiple hosts may be specified, each separated by a # space. How long nss_ldap takes to failover depends on # whether your LDAP client library supports configurable # network or connect timeouts (see bind_timelimit). host 127.0.0.1
# The distinguished name of the search base. base dc=foo,dc=bar,dc=edu
# Another way to specify your LDAP server is to provide an # uri with the server name. This allows to use # Unix Domain Sockets to connect to a local LDAP Server. #uri ldap://127.0.0.1/ #uri ldaps://127.0.0.1/ #uri ldapi://%2fvar%2frun%2fldapi_sock/ # Note: %2f encodes the '/' used as directory separator
# The LDAP version to use (defaults to 3 # if supported by client library) #ldap_version 3
# The distinguished name to bind to the server with. # Optional: default is to bind anonymously. #binddn cn=proxyuser,dc=example,dc=com
# The credentials to bind with. # Optional: default is no credential. #bindpw secret
# The distinguished name to bind to the server with # if the effective user ID is root. Password is # stored in /etc/ldap.secret (mode 600) rootbinddn cn=Manager,dc=foo,dc=bar,dc=edu
# The port. # Optional: default is 389. port 389
# The search scope. #scope sub #scope one #scope base
# Search timelimit #timelimit 30 timelimit 120
# Bind/connect timelimit #bind_timelimit 30 bind_timelimit 120
# Reconnect policy: hard (default) will retry connecting to # the software with exponential backoff, soft will fail # immediately. #bind_policy hard
# Idle timelimit; client will close connections # (nss_ldap only) if the server has not been contacted # for the number of seconds specified below. #idle_timelimit 3600 idle_timelimit 3600
# Filter to AND with uid=%s #pam_filter objectclass=account
# The user ID attribute (defaults to uid) #pam_login_attribute uid
# Search the root DSE for the password policy (works # with Netscape Directory Server) pam_lookup_policy yes
# Check the 'host' attribute for access control # Default is no; if set to yes, and user has no # value for the host attribute, and pam_ldap is # configured for account management (authorization) # then the user will not be allowed to login. #pam_check_host_attr yes
# Check the 'authorizedService' attribute for access # control # Default is no; if set to yes, and the user has no # value for the authorizedService attribute, and # pam_ldap is configured for account management # (authorization) then the user will not be allowed # to login. #pam_check_service_attr yes
# Group to enforce membership of #pam_groupdn cn=PAM,ou=Groups,dc=example,dc=com
# Group member attribute #pam_member_attribute uniquemember
# Specify a minium or maximum UID number allowed #pam_min_uid 0 #pam_max_uid 0
# Template login attribute, default template user # (can be overriden by value of former attribute # in user's entry) #pam_login_attribute userPrincipalName #pam_template_login_attribute uid #pam_template_login nobody
# HEADS UP: the pam_crypt, pam_nds_passwd, # and pam_ad_passwd options are no # longer supported. # # Do not hash the password at all; presume # the directory server will do it, if # necessary. This is the default. #pam_password clear
# Hash password locally; required for University of # Michigan LDAP server, and works with Netscape # Directory Server if you're using the UNIX-Crypt # hash mechanism and not using the NT Synchronization # service. #pam_password crypt
# Remove old password first, then update in # cleartext. Necessary for use with Novell # Directory Services (NDS) #pam_password clear_remove_old #pam_password nds
# RACF is an alias for the above. For use with # IBM RACF #pam_password racf
# Update Active Directory password, by # creating Unicode password and updating # unicodePwd attribute. #pam_password ad
# Use the OpenLDAP password change # extended operation to update the password. #pam_password exop
# Redirect users to a URL or somesuch on password # changes. #pam_password_prohibit_message Please visit http://internal to change your password.
# RFC2307bis naming contexts # Syntax: # nss_base_XXX base?scope?filter # where scope is {base,one,sub} # and filter is a filter to be &'d with the # default filter. # You can omit the suffix eg: # nss_base_passwd ou=People, # to append the default base DN but this # may incur a small performance impact. #nss_base_passwd ou=People,dc=example,dc=com?one #nss_base_shadow ou=People,dc=example,dc=com?one #nss_base_group ou=Group,dc=example,dc=com?one #nss_base_hosts ou=Hosts,dc=example,dc=com?one #nss_base_services ou=Services,dc=example,dc=com?one #nss_base_networks ou=Networks,dc=example,dc=com?one #nss_base_protocols ou=Protocols,dc=example,dc=com?one #nss_base_rpc ou=Rpc,dc=example,dc=com?one #nss_base_ethers ou=Ethers,dc=example,dc=com?one #nss_base_netmasks ou=Networks,dc=example,dc=com?ne #nss_base_bootparams ou=Ethers,dc=example,dc=com?one #nss_base_aliases ou=Aliases,dc=example,dc=com?one #nss_base_netgroup ou=Netgroup,dc=example,dc=com?one
# Just assume that there are no supplemental groups for these named users nss_initgroups_ignoreusers root,ldap,named,avahi,haldaemon
# attribute/objectclass mapping # Syntax: #nss_map_attribute rfc2307attribute mapped_attribute #nss_map_objectclass rfc2307objectclass mapped_objectclass
# configure --enable-nds is no longer supported. # NDS mappings #nss_map_attribute uniqueMember member
# Services for UNIX 3.5 mappings #nss_map_objectclass posixAccount User #nss_map_objectclass shadowAccount User #nss_map_attribute uid msSFU30Name #nss_map_attribute uniqueMember msSFU30PosixMember #nss_map_attribute userPassword msSFU30Password #nss_map_attribute homeDirectory msSFU30HomeDirectory #nss_map_attribute homeDirectory msSFUHomeDirectory #nss_map_objectclass posixGroup Group #pam_login_attribute msSFU30Name #pam_filter objectclass=User #pam_password ad
# configure --enable-mssfu-schema is no longer supported. # Services for UNIX 2.0 mappings #nss_map_objectclass posixAccount User #nss_map_objectclass shadowAccount user #nss_map_attribute uid msSFUName #nss_map_attribute uniqueMember posixMember #nss_map_attribute userPassword msSFUPassword #nss_map_attribute homeDirectory msSFUHomeDirectory #nss_map_attribute shadowLastChange pwdLastSet #nss_map_objectclass posixGroup Group #nss_map_attribute cn msSFUName #pam_login_attribute msSFUName #pam_filter objectclass=User #pam_password ad
# RFC 2307 (AD) mappings #nss_map_objectclass posixAccount user #nss_map_objectclass shadowAccount user #nss_map_attribute uid sAMAccountName #nss_map_attribute homeDirectory unixHomeDirectory #nss_map_attribute shadowLastChange pwdLastSet #nss_map_objectclass posixGroup group #nss_map_attribute uniqueMember member #pam_login_attribute sAMAccountName #pam_filter objectclass=User #pam_password ad
# configure --enable-authpassword is no longer supported # AuthPassword mappings #nss_map_attribute userPassword authPassword
# AIX SecureWay mappings #nss_map_objectclass posixAccount aixAccount #nss_base_passwd ou=aixaccount,?one #nss_map_attribute uid userName #nss_map_attribute gidNumber gid #nss_map_attribute uidNumber uid #nss_map_attribute userPassword passwordChar #nss_map_objectclass posixGroup aixAccessGroup #nss_base_group ou=aixgroup,?one #nss_map_attribute cn groupName #nss_map_attribute uniqueMember member #pam_login_attribute userName #pam_filter objectclass=aixAccount #pam_password clear
# Netscape SDK LDAPS #ssl on
# Netscape SDK SSL options #sslpath /etc/ssl/certs
# OpenLDAP SSL mechanism # start_tls mechanism uses the normal LDAP port, LDAPS typically 636 #ssl start_tls #ssl on
# OpenLDAP SSL options # Require and verify server certificate (yes/no) # Default is to use libldap's default behavior, which can be configured in # /etc/openldap/ldap.conf using the TLS_REQCERT setting. The default for # OpenLDAP 2.0 and earlier is "no", for 2.1 and later is "yes". #tls_checkpeer yes
# CA certificates for server certificate verification # At least one of these are required if tls_checkpeer is "yes" #tls_cacertfile /etc/ssl/ca.cert #tls_cacertdir /etc/ssl/certs
# Seed the PRNG if /dev/urandom is not provided #tls_randfile /var/run/egd-pool
# SSL cipher suite # See man ciphers for syntax #tls_ciphers TLSv1
# Client certificate and key # Use these, if your server requires client authentication. #tls_cert #tls_key
# Disable SASL security layers. This is needed for AD. #sasl_secprops maxssf=0
# Override the default Kerberos ticket cache location. #krb5_ccname FILE:/etc/.ldapcache
# SASL mechanism for PAM authentication - use is experimental # at present and does not support password policy control #pam_sasl_mech DIGEST-MD5