openldap-technical

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9989 discussions

RE: How enforce TLS connection to openldap server only?
by Quanah Gibson-Mount 20 Sep '12

20 Sep '12

--On Thursday, September 20, 2012 9:58 AM -0700 Quanah Gibson-Mount <quanah(a)zimbra.com> wrote: > --On Thursday, September 20, 2012 12:02 PM -0400 Yan Gong > <yan(a)fabric.com> wrote: > >> Peter: >> >> Thanks for the confirmation! >> I only used olcSecurity, not olcAccess to enforce the TLS connection. >> Man, I wish there is more detailed, updated and user-friendly information >> about OpenLdap on the web. >> I guess, that's why people are turning to Active Directory because it is >> much easier to use. > > It is documented in the manual pages, which are both on the web, and ship > with the software itself. Lack of comprehension does not mean lack of > documentation. > > If you think AD is LDAP, then you are in for a world of hurt. > Meant to send this to the list. ;) --Quanah -- Quanah Gibson-Mount Sr. Member of Technical Staff Zimbra, Inc A Division of VMware, Inc. -------------------- Zimbra :: the leader in open source messaging and collaboration

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translucent-overlay with back-relay and rwm
by Alexander Sulfrian 20 Sep '12

20 Sep '12

Hi, I was trying to get a translucent-overlay working, using the relay backend. But it does not work as expected. I want to merge two existent entries form the same server into a new virtual entry. The problem it, that I could not get the rwm overlay needed for the relay backend to work. If I simply try to add the rwm entry into the config like that: olcOverlay={0}rwm,olcDatabase={0}relay,olcOverlay={0}translucent,olcDatabase={1}hdb,cn=config The server answers with an object class violation error: "no structural objectClass add function". The cause of this error, is that the olcTranslucentDatabase entry is defined as Cfg_Misc and not Cfg_Database and the rwm Entry insists to be initiated in a Cfg_Database entry. I tried even more. I changed the source if the translucent overlay and defined olcTranslucentDatabase to be a Cfg_Database entry. Now the server gives to following error: config_add_internal: DN="olcOverlay={0}rwm,olcDatabase={0}relay,olcOverlay={0}translucent,olcDatabase={1}hdb,cn=config" not child of DN="olcOverlay={0}translucent,olcOverlay={1}hdb,cn=config" Adding some debug output I see that the server is testing if the olcOverlay={0}rwm entry is a child of olcDatabase={-1}relay,olcOverlay={0}translucent,olcOverlay={1}hdb,cn=config. But the relay Database is added with an id of 0. Where does the mysterious "-1" come from? I have seen this in the translucent source: backend_db_init( "ldap", &ov->db, -1, NULL ) Is this maybe the cause? I tried to change this "-1" to "0", but nothing changes. I read somewhere, that the translucent overlay is only supposed to work with the ldap backend. But as far as I can see, I need the same rewriting using the rwm overlay with the ldap backend. So that should not work either. Could someone give me a clue, how to get this working? Thanks, Alex

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How enforce TLS connection to openldap server only?
by Yan Gong 19 Sep '12

19 Sep '12

Sir/Madam: I successfully set up TLS on both openldap server and client through port 389 on ubuntu. I didn't use SSL through port 636. However, I found non encrypted/clear text connections can be made through port 389 to the openldap server as well. How can I enforce TLS connection only and reject any non encrypted connections? Should I use olcAccess or olcSecurity? or both? I couldn't find any detailed steps/documentation about it. Please note, I am not use slapd.conf which is for older version of openldap. Thanks a lot! Yan Thanks a lot! Yan

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Problem when I use alias with deferencing option
by Paola Laguzzi 19 Sep '12

19 Sep '12

Hi, I have a problem when I use the alias. I have an OpenLdap with 450.000 entries and 450.000 alias. When I make a search using the deferencing I obtain a wrong result. For example: - if I search in the alias tree uid=xxxx I obtain zero entry but I have the alias and I have the phisical entry - if I search in the alias tree ou=xxxx I obtain a number of entries that is different from same search performed on the phisical tree This happens only when I use the deferencing option. Why? I find in Internet that: "If you have a thousand or more alias objects, avoid alias dereferencing in the search" .... this means I could get wrong results using alias? Thanks in advance Regards Paola

2 2

Replace nis schema to rfc2307bis.
by Daniel Lopes de Carvalho 19 Sep '12

19 Sep '12

Hello, I'm new to LDAP cn=config and I would like to replace nis schema to rfc2307bis. Is there a way to do this? Someone could help me? I'm using Debian Squeeze 6.0.5 with LDAP 2.4.23-7.2. Thanks and best regards. Daniel

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questions to differences between RFC2253 & RFC4514
by Peter Marschall 19 Sep '12

19 Sep '12

Hi, I am currently in the process of updating the DN parsing routines of perl-ldap and found some differences on border cases between RFC 2253 & RFC 4514 As you are more knowledgeable than I in LDAP (you wrote the specs ;-), could you please give me your opinion on the test cases below and whether my interpretations are correct. Thanks in advance for your help Peter <OU=Sales+CN=J. Smith;O=Widget Inc.;C=US> * illegal in RFC 4514 [I guess this is wrong;-] * in RFC 2253 [ { 'CN' => 'J. Smith', 'OU' => 'Sales' }, { 'O' => 'Widget Inc.' }, { 'C' => 'US' } ]; <OU="Sales"+CN=J. Smith,O=Widget Inc.,C=US> * illegal in RFC 4514 * in RFC 2253 [ { 'CN' => 'J. Smith', 'OU' => 'Sales' }, { 'O' => 'Widget Inc.' }, { 'C' => 'US' } ]; <OU="Sales+CN=J. Smith",O=Widget Inc.,C=US> * illegal in RFC 4514 * in RFC 2253 [ { 'OU' => 'Sales+CN=J. Smith' }, { 'O' => 'Widget Inc.' }, { 'C' => 'US' } ]; <cn=J.\20Smith\+ou=Sales,O=Widget\20Inc.,C=US> * in RFC 4514 [ { 'CN' => 'J. Smith+ou=Sales' }, { 'O' => 'Widget Inc.' }, { 'C' => 'US' } ]; * illegal in RFC 2253 <cn=Clif Harden+IDNumber="a0125589 ",ou=tiPerson,ou=person,o=ti,c=us> * illegal in RFC 4514 * in RFC 2253 [ { 'CN' => 'Clif Harden', 'IDNUMBER' => 'a0125589 ' }, { 'OU' => 'tiPerson' }, { 'OU' => 'person' }, { 'O' => 'ti' }, { 'C' => 'us' } ]; <Cn=" Graham Barr ",OU=person,O=vc,C=us> * illegal in RFC 4514 * in RFC 2253: [ { 'CN' => ' Graham Barr ' }, { 'OU' => 'person' }, { 'O' => 'vc' }, { 'C' => 'us' } ]; <cn=" Graham \20Barr\20 ",OU=person,O=vc,C=us> * illegal in RFC 4514 * in RFC 2253: [ { 'CN' => ' Graham Barr ' }, { 'OU' => 'person' }, { 'O' => 'vc' }, { 'C' => 'us' } ]; <cn=123=345,o=xxx> * in RFC 4514: [ { 'CN' => '123=345' }, { 'O' => 'xxx' } ]; * illegal in RFC 2253 -- Peter Marschall peter(a)adpm.de

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Monitoring using cn=config
by Arturo Borrero 19 Sep '12

19 Sep '12

Hi there. I'm using slapd 2.4.23-7.2 (from Debian Squeeze) and i'm unable to get monitoring running. Here is my config: file /etc/ldap/slapd.d/cn=config/olcDatabase\=\{2\}monitor.ldif dn: olcDatabase={2}monitor objectClass: olcDatabaseConfig objectClass: olcConfig objectClass: top olcDatabase: {2}monitor createTimestamp: 20120918124549Z olcAccess: {0}to * by peername.ip=127.0.0.1 read by peername.ipv6=::1 read by * none olcAddContentAcl: FALSE olcLastMod: TRUE olcMonitoring: FALSE olcReadOnly: FALSE olcMaxDerefDepth: 15 olcSyncUseSubentry: FALSE In file /etc/ldap/slapd.d/cn=config/olcDatabase\=\{1\}hdb.ldif [...] olcMonitoring=TRUE [...] The documentation isn't complete: www.openldap.org/devel/admin/monitoringslapd.html I try: root@server:~# ldapsearch -H ldapi:/// -Y EXTERNAL -s sub -b cn=Monitor SASL/EXTERNAL authentication started SASL username: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth SASL SSF: 0 # extended LDIF # # LDAPv3 # base <cn=Monitor> with scope subtree # filter: (objectclass=*) # requesting: ALL # # search result search: 2 result: 32 No such object # numResponses: 1 So I guess the database for monitoring doesn't exist. Any idea? Best regards. -- Arturo Borrero González Departamento de Seguridad Informática, @NIS_CICA (twitter) Centro Informático Científico de Andalucía (CICA) Avda. Reina Mercedes s/n - 41012 - Sevilla (Spain) Tfno.: +34 955 056 600 / FAX: +34 955 056 650 Consejería de Economía, Innovación, Ciencia y Empleo Junta de Andalucía

2 1

Replication Provider consumer
by arun.sasi1＠wipro.com 18 Sep '12

18 Sep '12

Hello Team, I have configured a set up in my infra as like below. Provider in OpenLDAP 2.4.19 Consumer in OpenLDAP 2.4.28 When I replicate the data, it all get replicate properly but when I create any entry in consumer server, it is getting writes in master LDAP server. What could be the problem. Please find the below consumer configuration file. cn\=config.ldif # AUTO-GENERATED FILE - DO NOT EDIT!! Use ldapmodify. # CRC32 9fe00430 dn: cn=config objectClass: olcGlobal cn: config olcArgsFile: /var/run/slapd/slapd.args olcPidFile: /var/run/slapd/slapd.pid olcToolThreads: 1 structuralObjectClass: olcGlobal entryUUID: 6b8092fc-9667-1031-8a5a-358a8bc96075 creatorsName: cn=config createTimestamp: 20120919053426Z olcAllows: bind_v2 olcServerID: 1 ldap://gb0135embldap01.emb.slb.com olcTLSCACertificateFile: /etc/ssl/certs/Emb.slb.Com-CA.pem olcTLSCACertificatePath: /etc/ssl/certs/ olcTLSCertificateFile: /etc/ldap/emb.slb.com.cert.pem olcTLSCertificateKeyFile: /etc/ldap/emb.slb.com.key.pem olcLogLevel: -1 entryCSN: 20120919053444.175373Z#000000#000#000000 modifiersName: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth modifyTimestamp: 20120919053444Z olcDatabase\=\{1\}hdb.ldif # CRC32 b10d01be dn: olcDatabase={1}hdb objectClass: olcDatabaseConfig objectClass: olcHdbConfig olcDatabase: {1}hdb olcDbDirectory: /var/lib/ldap olcSuffix: dc=emb,dc=slb,dc=com olcLastMod: TRUE olcRootDN: cn=admin,dc=emb,dc=slb,dc=com olcRootPW:: e1NTSEF9b28vRlZuM0JnaEQzWVBDUi9OUGVPODJ0ZktrMzlPNlg= olcDbCheckpoint: 512 30 olcDbConfig: {0}set_cachesize 0 2097152 0 olcDbConfig: {1}set_lk_max_objects 1500 olcDbConfig: {2}set_lk_max_locks 1500 olcDbConfig: {3}set_lk_max_lockers 1500 olcDbIndex: objectClass eq olcDbIndex: entryUUID eq structuralObjectClass: olcHdbConfig entryUUID: 6b816632-9667-1031-8a64-358a8bc96075 creatorsName: cn=config createTimestamp: 20120919053426Z olcSyncrepl: {0}rid=365 provider=ldap://gb0135embldap01.emb.slb.com bindmethod =simple binddn="cn=admin,dc=emb,dc=slb,dc=com" credentials=Bsl@121z searchbas e="dc=emb,dc=slb,dc=com" type=refreshAndPersist retry="5 5 300 5" starttls=yes olcUpdateRef: ldap://gb0135embldap01.emb.slb.com entryCSN: 20120919053435.138086Z#000000#000#000000 modifiersName: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth modifyTimestamp: 20120919053435Z Thanks & Regards, Arun Sasi Venmalassery ------------------------------------------------------------------------------------------------------------------------------------- Sr. Engineer - Server Management (UNIX), Wipro Ltd (Dubai) |Mob: +971 566489491 | E: arun.sasi1(a)wipro.com<mailto:koresh.dash@wipro.com> The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments. WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email. www.wipro.com

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Help with ACL to allow member of groupOfNames to read their entry
by Josh Miller 18 Sep '12

18 Sep '12

I am using OpenLDAP 2.4.23 on CentOS 6 and trying to setup ACLs to allow simpleSecurityObjects who are members of a groupOfNames to read their entry (but not write) and ideally not see other member attributes in that same groupOfNames. These simpleSecurityObjects exist in various OUs and reside in the same OU as the groupOfNames that they require access to. I'm using the memberOf overlay to maintain memberOf attributes within each simpleSecurityObject (which works well). Sample simpleSecurityObject and groupOfNames: uid=josh,ou=first string,dc=example,dc=com objectClass: account objectClass: simpleSecurityObject objectClass: top uid: josh dn: cn=group1,ou=first string,dc=example,dc=com objectClass: groupOfNames cn: group1 member: uid=josh,ou=first string,dc=example,dc=com Here is what I have so far for ACLs: dn: olcDatabase={1}bdb,cn=config changetype: modify add: olcAccess olcAccess: {0}to attrs=userPassword by anonymous auth by self write by group.exact="cn=ol-admins,ou=groups,dc=example,dc=com" write by * none - add: olcAccess olcAccess: {1}to dn.subtree="ou=power users,dc=example,dc=com" by anonymous auth by self write by group.exact="cn=ol-admins,ou=groups,dc=example,dc=com" write by dn.exact="uid=power users admin,ou=service accounts,dc=example,dc=com" write by dn.exact="uid=power users readonly,ou=service accounts,dc=example,dc=com" read by dn.exact="uid=global-ro,ou=service accounts,dc=example,dc=com" read by users search by * none - add: olcAccess olcAccess: {2}to dn.subtree="ou=third string,dc=example,dc=com" by self write by anonymous auth by group.exact="cn=ol-admins,ou=groups,dc=example,dc=com" write by dn.exact="uid=third string admin,ou=service accounts,dc=example,dc=com" write by dn.exact="uid=third string readonly,ou=service accounts,dc=example,dc=com" read by dn.exact="uid=global-ro,ou=service accounts,dc=example,dc=com" read by users search by * none - add: olcAccess olcAccess: {3}to dn.subtree="ou=second string,dc=example,dc=com" by self write by anonymous auth by group.exact="cn=ol-admins,ou=groups,dc=example,dc=com" write by dn.exact="uid=second string admin,ou=service accounts,dc=example,dc=com" write by dn.exact="uid=second string readonly,ou=service accounts,dc=example,dc=com" read by dn.exact="uid=global-ro,ou=service accounts,dc=example,dc=com" read by users search by * none - add: olcAccess olcAccess: {4}to dn.subtree="ou=first string,dc=example,dc=com" by self write by anonymous auth by group.exact="cn=ol-admins,ou=groups,dc=example,dc=com" write by dn.exact="uid=first string admin,ou=service accounts,dc=example,dc=com" write by dn.exact="uid=first string readonly,ou=service accounts,dc=example,dc=com" read by dn.exact="uid=global-ro,ou=service accounts,dc=example,dc=com" read by users search by * none - add: olcAccess olcAccess: {5}to dn.subtree="ou=fourth string,dc=example,dc=com" by self write by anonymous auth by group.exact="cn=ol-admins,ou=groups,dc=example,dc=com" write by dn.exact="uid=fourth string admin,ou=service accounts,dc=example,dc=com" write by dn.exact="uid=fourth string readonly,ou=service accounts,dc=example,dc=com" read by dn.exact="uid=global-ro,ou=service accounts,dc=example,dc=com" read by users search by * none - add: olcAccess olcAccess: {6}to * by self write by anonymous auth by group.exact="cn=ol-admins,ou=groups,dc=example,dc=com" write by dn.exact="uid=global-ro,ou=service accounts,dc=example,dc=com" read by dn.exact="uid=readonly,ou=people,dc=example,dc=com" read by * none I've tried placing the following ACL in various places in the list and it has failed to work each time: (re: http://www.openldap.org/doc/admin24/access-control.html) olcAccess: to attrs=member,entry by dnattr=member selfwrite by group.exact="cn=ol-admins,ou=groups,dc=example,dc=com" write by dn.exact="uid=global-ro,ou=service accounts,dc=example,dc=com" read by dn.exact="uid=readonly,ou=people,dc=example,dc=com" read by * none Any assistance would be greatly appreciated. Thanks, Josh

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ldapadd long line problem
by Amol Kulkarni 18 Sep '12

18 Sep '12

Hi, I'm unable to add a long line (more than 4096 chars) in a field using ldapadd. I've openldap 2.4.30. I had 2.4.23 earlier and it used to work. So I tested again by keeping the slapd daemon of 2.4.30 but using ldapadd from 2.4.23. It works with the ldapadd from 2.4.23. Also it works in 2.4.30 if : 1. I reduce it to less than 4096. 2. I break down the long line into multiple lines. Has anyone come across this behaviour ? Is is something new added in the new version ? Thanks in advance, Amol.

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