openldap-technical July 2008

openldap-technical@openldap.org

67 participants
78 discussions

ppolicy woes
by Robert Evans 18 Jul '08

18 Jul '08

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

2 1

schema
by John Kellen 18 Jul '08

18 Jul '08

Hello, what schema do i need to have configured in slapd.conf to use this ldif file: *dn: cn=aderaede,ou=People,dc=vub,dc=ac,dc=be objectClass: top objectClass: person objectClass: organizationalPerson objectClass: inetOrgPerson objectClass: posixAccount objectClass: inetLocalMailRecipient objectClass: shadowAccount uid: aderaede sn: *********** givenName: Anouk cn: aderaede userPassword: {crypt}WZpdKybON0LAQ loginShell: /bin/csh uidNumber: 25556 gidNumber: 3294 homeDirectory: /u/aderaede gecos: *************** mail: ************* displayName: *************** ** I have the following configured in slapd.conf *# Schema and objectClass definitions include /etc/ldap/schema/core.schema include /etc/ldap/schema/cosine.schema include /etc/ldap/schema/nis.schema include /etc/ldap/schema/inetorgperson.schema include /etc/ldap/schema/openldap.schemaµ* Thanks J

3 5

Problem deleting item because of DB_LOCK_NOTGRANTED
by Laurent Bourqui 17 Jul '08

17 Jul '08

Dear Openldap techies, I have been trying for hours to bring this server to work without any success so far. When I try to delete an object from the ldap server with ldapdelete, I get the following error message in the log file: Jul 18 00:43:00 zorg slapd[1904]: => bdb_dn2id_delete 0x3: "cn=laurent bourqui,ou=addresses,dc=apicus,dc=ch" Jul 18 00:43:00 zorg slapd[1904]: <= bdb_dn2id_delete 0x3: -30994 Jul 18 00:43:00 zorg slapd[1904]: <=- bdb_delete: dn2id failed: DB_LOCK_NOTGRANTED: Lock not granted (-30994) Jul 18 00:43:00 zorg slapd[1904]: ==> bdb_delete: retrying... The server is configured the following way: sladpd.conf: ------------------------ include /usr/local/etc/openldap/schema/core.schema include /usr/local/etc/openldap/schema/cosine.schema include /usr/local/etc/openldap/schema/inetorgperson.schema pidfile /var/run/openldap/slapd.pid argsfile /var/run/openldap/slapd.args modulepath /usr/local/libexec/openldap moduleload back_bdb loglevel any ####################################################################### # BDB database definitions ####################################################################### database bdb suffix "dc=apicus,dc=ch" rootdn "cn=admin,dc=apicus,dc=ch" rootpw xxxxxxxx directory /var/db/openldap-data index objectClass eq ---------------------------------------- I have added some entries using the following ldif file: ---------------------------------------- dn: dc=apicus, dc=ch objectclass: dcObject objectClass: organization o: apicus dc: apicus dn: ou=addresses, dc=apicus, dc=ch objectclass: organizationalUnit ou: addresses description: Apicus Addressbook dn: cn=Laurent Bourqui, ou=addresses, dc=apicus, dc=ch objectClass: top objectClass: inetOrgPerson uid: 00001 cn: Laurent Bourqui gn: Laurent sn: Bourqui mobile: +xxxxxxxxx homePhone: +xxxxxxxxxxx street: xxxxxxxxxxxx postalCode: xxxxx l: xxxxxxxxxx st: xxx ---------------------------------------- The ldif file has been imported with the following command: ldapadd -x -W -D 'cn=admin,dc=apicus,dc=ch' -f apicus-addresses.ldiff I'm now trying to delete the entry: dn: cn=Laurent Bourqui, ou=addresses, dc=apicus, dc=ch using the following command: ldapdelete -x -W -D 'cn=admin,dc=apicus,dc=ch' "cn=Laurent Bourqui, ou=addresses, dc=apicus, dc=ch" This command hangs and continuisly bring the error message in the logs. I have search the FAQ, google and event the berkley DB infos for informations but I was not able to find any hint about the reason of this problem. Did anybody already encoutered this error ? Versions: openldap 2.4.10 FreeBSD 7.0 Any feedback will be welcom. Many thanks in advance for your help. Best Regards -- Laurent Bourqui

1 0

problem connection in local with account root
by GanGan 17 Jul '08

17 Jul '08

hello all I have problem for connect in local in my server rhel 5.1with the root account all the connection with ssh are good, root too I use ldap for other account the root account is not in ldap my /etc/nsswitch.conf passwd: files [SUCCESS=return] ldap shadow: files [SUCCESS=return] ldap group: files [SUCCESS=return] ldap when I delete ldap in my nsswitch.conf the connection local with the root account works well I have modified /etc/pam.d/sshd no other files in /etc/pam.d/ my /etc/pam.d/sshd auth optional pam_group.so auth required pam_env.so auth sufficient pam_unix.so likeauth auth sufficient pam_ldap.so use_first_pass auth required pam_deny.so auth required pam_warn.so account sufficient pam_unix.so account sufficient pam_ldap.so ignore_unknown_user account required pam_deny.so account required pam_warn.so password required pam_cracklib.so retry=2 minlen=8 password sufficient pam_unix.so use_authok md5 shadow password sufficient pam_ldap.so use_authok password required pam_deny.so password required pam_warn.so session optional pam_mkhomedir.so skel=/etc/skel/ umask=077 silent session required pam_limits.so session optional pam_ldap.so ignore_unknown_user session required pam_warn.so someone could help me - GanGan -

1 0

forcing group membership removal
by daniel rahmeh 17 Jul '08

17 Jul '08

Hi, I have another question concerning group membership. Is there a way to force openldap to remove the user DN from a group when i delete the user entry from openLDAP? In other words, is there some kind of configuration that tells openLDAP to remove the user DN from the member attribute of a group once the user entry is deleted from the directory. Thank you

2 2

openldap entry modification
by daniel rahmeh 17 Jul '08

17 Jul '08

hi, I have a question concerning the best method to modify an entry (in openldap) using a programming API like php. php offers the ability to modify an entry using some fucntions like ldap_modify, ldap_mod_add, ldap_mod_del. sometimes it's complicated to use these functions, in this case, developpers use another approach, which is deleting the entry and then add it with the new attributes etc. my question is: is it fine to delete an entry and re-add it?? does this affect the performance of openLDAP? thank you

2 3

starting slapd 2.4.10
by Christophe Thibault 17 Jul '08

17 Jul '08

Hi, I'm currently playing with Samba 4 alpha and OpenLdap 2.4.10. I want to start slapd with this command line (i'm currently logged in as root) : slapd -d 16384 -f /usr/local/samba/private/ldap/slapd.conf -h ldapi://%2Fusr%2Flocal%2Fsamba%2Fprivate%2Fldap%2Fldapi But I get the following error trace: @(#) $OpenLDAP: slapd 2.4.10 (Jul 11 2008 09:22:55) $ buildd@vernadsky:/build/buildd/openldap-2.4.10/debian/build/servers/slapd daemon: bind(7) failed errno=13 (Permission denied) slapd stopped. connections_destroy: nothing to destroy. I tried to replace the ldapi uri by "ldap:///", but now I'm getting a could not open config file "/usr/local/samba/private/ldap/slapd.conf": Permission denied (13) error message, while all rights and group/owner seem to be OK (ls -l returns -rw-r--r--). I think I miss something, but i'm stuck for now, if someone has any idea... thanks, chris

2 1

Trouble with nisnetgrouptriple syntax / RFC 2307
by Jeff Blaine 16 Jul '08

16 Jul '08

I've come across the same problem as the original poster found here: http://www.openldap.org/lists/openldap-technical/200804/msg00127.html The only reply to him indicated that his syntax was incorrect for nisnetgrouptriple according to RFC 2307. I cannot see how it is invalid based on the syntax definition from RFC 2307. My example: > dn: cn=users1,ou=Netgroup,dc=rcf,dc=foo,dc=com > objectClass: nisNetgroup > objectClass: top > cn: users1 > nisNetgroupTriple: (-,asgen2m,) > nisNetgroupTriple: (-,apdons,) > nisNetgroupTriple: (-,ffeins,) > nisNetgroupTriple: (-,faullton,) The syntax definition: > nisnetgrouptriple = "(" hostname "," username "," domainname ")" > hostname = "" / "-" / keystring > username = "" / "-" / keystring > domainname = "" / "-" / keystring Does that not state that hostname, username, domainname can each be ANY of: empty - keystring ?? Any guidance would be welcome! Jeff Blaine

4 6

script for adding users information in ldap database
by Aravind Arjunan 16 Jul '08

16 Jul '08

hi, i had configured openldap in RHEL 5. It was in master/slave replication in syncrepl method (refreshOnly) method. I had to add users information in the ldap database. Nearly 15000 users are there so i can able to add all the 15000 users infromation at a time. so i need a script or some utility to add all the user infromation at the same time. Am using LDAP Browser for adding the entries now. so plz help me how to add all the users information at single time.

6 6

N-way multimaster
by Miguel Jinez 16 Jul '08

16 Jul '08

Hi. I need help to fix a problem. I am running openLdap 2.4 I have configurated 2 multimaster servers, which works fine, but I was thinking what happen if one of them die? When that master is restarted read the "logold" parameter in the other master and synchronize the changes, problem solved. But what happen if one master dies, meanwhile the other master performs changes in the Ldap tree (add, modify, delete) and that master dies too? I have test it and the changes that I made in the second master are not synchronized on the first one, and I don t know how I can synchronize the changes, I have accesslog configurated, I can see in the second one log these changes but the first one doesn t read it when is restarted. I need your help. sorry by the bad english. Migue

2 4

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openldap-technical July 2008