openldap-technical

openldap-technical@openldap.org

3 participants
9937 discussions

Processing telephone number
by Angel L. Mateo 26 Apr '17

26 Apr '17

Hi, I have an openldap that stores information of my users. One of the fields we are using is telephoneNumber to store the phone number of the user. In this field we are storing now the complete phone number, that is, a number like +34 123456789, but now we are deploying applications that need just the extension number (the last 4 digits), not the hole one. Is there any overlay or other option we can use to provide those last 4 digits of the telephoneNumber attribute without needing to store them in another different attribute? -- Angel L. Mateo Martínez Sección de Telemática Área de Tecnologías de la Información y las Comunicaciones Aplicadas (ATICA) http://www.um.es/atica Tfo: 868889150 Fax: 868888337

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Password storage policy and DIT organisation
by Andreas Ames 26 Apr '17

26 Apr '17

Hi all, my questions below are more about openldap pragmatics than technical issues; if they are off-topic, please point me somewhere else to ask. As I'm a newbie, please bear with me, if I get things completely wrong. What I want to achieve using slapd: a) A centralised authentication service for system accounts of a handful of Linux hosts (libpam-ldapd) and some apache-based webapps (mod_authnz_ldap). b) Every user has a single password stored in exactly one place in the DIT (single-sign on is not topical in my environment). c) I would like to have fine-grained control over whether an ldap user has access to a specific host or webapp or not. Based on that I have got two questions: 1. DIT organisation Let's assume my suffix is dc=foo. I plan to have ou=Users,dc=foo for storing ldap users with their (unique) passwords and ou=Services,dc=foo to have account information for each of my services; e.g. ou=host1,ou=services,dc=foo to provide posix account information for host1, or ou=webapp1,ou=services,dc=foo for mod_authnz_ldap related information regarding webapp1 etc. I plan to use olcAuthzRegexp to authenticate users below ou=host1,ou=services,dc=foo or ou=webapp1,ou=services,dc=foo against ldap users in ou=Users,dc=foo. Is this a sensible setup or are there better hierarchies to achieve my goals? 2. Password storage policy (NB: I am using TLS with a self-signed certificate.) Theoretically I would prefer to store hashed passwords. If I understand correctly, olcAuthRegexp only works with SASL and hashed passwords can only possibly work with the PLAIN mechanism (??). So I tried that and simple binding works as expected, when directly binding to an entry with an attribute "userPassword" (i.e. without indirection through olcAuthzRegexp). To get SASL/PLAIN working, I have tried (without success up till now) to use saslauthd. Moreover the authentication path "client -> TLS/TCP/IP -> slapd (SASL/PLAIN) -> Unix Domain socket -> saslauthd -> localhost/TCP/IP -> slapd (simple bind)" seems a little over the top for my use case. So I am wondering, if hashed password storage is really such a good idea. What are the (security) implications of cleartext storage of passwords? Do you have document links discussing this in some depth? Thanks in advance ... Mit freundlichen Grüßen / With kind regards / Cordiali saluti, Andreas Please consider the environment before you print / Merci de penser à l'environnement avant d'imprimer / Bitte denken Sie an die Umwelt bevor Sie drucken Bombardier Transportation GmbH. Vorsitzender des Aufsichtsrats / Chairman of Supervisory Board: Wolfgang Toelsner. Geschäftsführung / Management Board: Michael Fohrer (Vorsitzender/Chairman), Olaf Berghoff, Dr. Daniel Perlzweig, Konrad Wiebalck. Sitz der Gesellschaft / Principal Office: Berlin. Registergericht / Registration Court: Amtsgericht Charlottenburg, HRB 64838. This e-mail message, and any attachments, may contain information that is confidential and/or privileged. They are intended for the exclusive use of the addressee. Any other person is strictly prohibited from disclosure, distribution or reproduction. No waiver whatsoever is intended by sending this e-mail. If you receive this e-mail in error please immediately inform the sender by return e-mail and delete this e-mail message along with all the attachments and destroy all copies.

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Re: Manual LDAP 2.4.44 Installation
by Quanah Gibson-Mount 25 Apr '17

25 Apr '17

--On Tuesday, April 25, 2017 1:57 AM +0000 Alexandre Vilarinho <acvoliveira(a)yahoo.com.br> wrote: > root@Linux-LDAP-SERVER:~# /usr/local/sbin/slapadd -F > /usr/local/etc/slapd.d -l /usr/local/etc/openldap/slapd.ldif > 58fe9bea invalid config directory /usr/local/etc/slapd.d, error 2 > slapadd: bad configuration directory! As per my previous email: >> Also ensure that directory exists prior to running the command. Not sure how to be any more clear than that. --Quanah -- Quanah Gibson-Mount Product Architect Symas Corporation Packaged, certified, and supported LDAP solutions powered by OpenLDAP: <http://www.symas.com>

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chain overlay does an anonymous bind and ignores the chain binddn (v2.4.44)
by mailing lists 24 Apr '17

24 Apr '17

Hello, I am testing the chain overlay from a read-only slave (consumer) slapd server to a read-write master (provider), but what I am seeing is an anonymous bind from the consumer to the provider instead of the authorization identity configurated in the chain directive. consumer/10.112.107.53:------------------------------------- # slapd -V @(#) $OpenLDAP: slapd 2.4.44 (Mar 23 2017 12:46:14) $ root@consumer:/root/rpmbuild/BUILD/openldap-2.4.44/openldap-2.4.44/servers/slapd # grep -v -e '^#' -e '^$' slapd.conf include /etc/openldap/schema/core.schema include /etc/openldap/schema/cosine.schema include /etc/openldap/schema/inetorgperson.schema include /etc/openldap/schema/nis.schema include /etc/openldap/schema/samba.schema include /etc/openldap/schema/freeradius.schema include /etc/openldap/schema/authldap.schema include /etc/openldap/schema/dyngroup.schema include /etc/openldap/schema/ppolicy.schema include /etc/openldap/schema/custom.schema pidfile /var/run/openldap/slapd.pid argsfile /var/run/openldap/slapd.args moduleload back_ldap.la moduleload unique.la moduleload ppolicy.la moduleload dynlist.la moduleload memberof.la moduleload syncprov.la moduleload accesslog.la moduleload auditlog.la overlay chain chain-uri "ldap://10.112.107.51" chain-idassert-bind bindmethod="simple" binddn="cn=proxyuser,dc=example,dc=com" credentials="12345678" mode="self" flags=non-prescriptive chain-rebind-as-user TRUE chain-return-error TRUE access to * by * write serverID 101 allow bind_v2 database mdb suffix "dc=example,dc=com" dbnosync rootdn "cn=Manager,dc=example,dc=com" rootpw 12345678 directory /var/lib/ldap maxsize 106300440576 index objectClass eq index uid eq,sub index entryCSN,entryUUID eq loglevel stats syncrepl rid=101 provider=ldap://10.112.107.51:389 type=refreshAndPersist searchbase="dc=example,dc=com" schemachecking=off bindmethod=simple retry="60 10 300 +" binddn="cn=syncrepl,dc=example,dc=com" credentials=12345678 updateref "ldap://10.112.107.51:389" provider/10.112.107.51:----------------------------------- # slapd -V @(#) $OpenLDAP: slapd 2.4.44 (Mar 23 2017 12:46:14) $ root@provider:/root/rpmbuild/BUILD/openldap-2.4.44/openldap-2.4.44/servers/slapd # grep -v -e '^#' -e '^$' slapd.conf include /etc/openldap/schema/core.schema include /etc/openldap/schema/cosine.schema include /etc/openldap/schema/inetorgperson.schema include /etc/openldap/schema/nis.schema include /etc/openldap/schema/samba.schema include /etc/openldap/schema/freeradius.schema include /etc/openldap/schema/authldap.schema include /etc/openldap/schema/dyngroup.schema include /etc/openldap/schema/ppolicy.schema include /etc/openldap/schema/custom.schema pidfile /var/run/openldap/slapd.pid argsfile /var/run/openldap/slapd.args modulepath /usr/lib64/openldap moduleload back_ldap.la moduleload unique.la moduleload ppolicy.la moduleload dynlist.la moduleload memberof.la moduleload syncprov.la moduleload accesslog.la moduleload auditlog.la access to * by * write serverID 001 authz-policy to allow bind_v2 database mdb suffix "dc=example,dc=com" dbnosync rootdn "cn=Manager,dc=example,dc=com" rootpw 12345678 directory /var/lib/ldap maxsize 106300440576 index objectClass eq index uid eq,sub index entryCSN,entryUUID eq loglevel stats limits dn="cn=proxyuser,dc=example,dc=com" size=unlimitedlimits dn="cn=syncrepl,dc=example,dc=com" size=unlimitedoverlay syncprov syncprov-checkpoint 1000 1 syncprov-sessionlog 150000 syncprov-reloadhint TRUE now I do an update in the consumer: Apr 20 12:58:57 consumer slapd[23149]: conn=1004 fd=16 ACCEPT from IP=127.0.0.1:42198 (IP=0.0.0.0:389) Apr 20 12:58:57 consumer slapd[23149]: conn=1004 op=0 BIND dn="cn=Manager,dc=example,dc=com" method=128 Apr 20 12:58:57 consumer slapd[23149]: conn=1004 op=0 BIND dn="cn=Manager,dc=example,dc=com" mech=SIMPLE ssf=0 Apr 20 12:58:57 consumer slapd[23149]: conn=1004 op=0 RESULT tag=97 err=0 text= Apr 20 12:58:57 consumer slapd[23149]: conn=1004 op=1 SRCH base="dc=example,dc=com" scope=2 deref=2 filter="(employeeid=759042)" Apr 20 12:58:57 consumer slapd[23149]: conn=1004 op=1 SRCH attr=* + Apr 20 12:58:57 consumer slapd[23149]: conn=1004 op=1 SEARCH RESULT tag=101 err=0 nentries=1 text= Apr 20 12:58:57 consumer slapd[23149]: conn=1004 op=2 SRCH base="dc=example,dc=com" scope=2 deref=2 filter="(uid=endwmkhwl60nehf2c)" Apr 20 12:58:57 consumer slapd[23149]: conn=1004 op=2 SRCH attr=* + Apr 20 12:58:57 consumer slapd[23149]: conn=1004 op=2 SEARCH RESULT tag=101 err=0 nentries=1 text= Apr 20 12:58:57 consumer slapd[23149]: conn=1004 op=3 MOD dn="uid=enDwmkHWl60NEHf2c,dc=example,dc=com" Apr 20 12:58:57 consumer slapd[23149]: conn=1004 op=3 MOD attr=description Apr 20 12:58:57 consumer slapd[23149]: conn=1004 op=3 RESULT tag=103 err=8 text= Apr 20 12:58:57 consumer slapd[23149]: conn=1004 fd=16 closed (connection lost) and this is the corresponding log in the provider: Apr 20 12:58:57 provider slapd[28974]: conn=3367 fd=16 ACCEPT from IP=10.112.107.53:58416 (IP=0.0.0.0:389) Apr 20 12:58:57 provider slapd[28974]: conn=3367 op=0 BIND dn="" method=128 Apr 20 12:58:57 provider slapd[28974]: conn=3367 op=0 RESULT tag=97 err=0 text= Apr 20 12:58:57 provider slapd[28974]: conn=3367 op=1 MOD dn="uid=enDwmkHWl60NEHf2c,dc=example,dc=com" Apr 20 12:58:57 provider slapd[28974]: conn=3367 op=1 MOD attr=description Apr 20 12:58:57 provider slapd[28974]: conn=3367 op=1 RESULT tag=103 err=8 text=modifications require authentication Apr 20 12:58:57 provider slapd[28974]: conn=3367 op=2 UNBIND Apr 20 12:58:57 provider slapd[28974]: conn=3367 fd=16 closed afaik, the bind dn in the provider must be the chain binddn configured in the consumer, but it gets an anonymous bind. any suggestion about what can be my mistake??

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Re: Manual LDAP 2.4.44 Installation
by Quanah Gibson-Mount 23 Apr '17

23 Apr '17

--On Friday, April 21, 2017 6:35 PM +0000 Alexandre Vilarinho <vilarinhomail-dev(a)yahoo.com.br> wrote: > But from step 9 forward it practically didn't work: > > > 9.Import the configuration database > You are now ready to import your configration database for use by > slapd(8), by running the command: > su root -c /usr/local/sbin/slapadd -F /usr/local/etc/cn=config -l > /usr/local/etc/openldap/slapd.ldif That's a typo in the quickstart guide that's already fixed for the next release. It would be /usr/local/etc/slapd.d Also ensure that directory exists prior to running the command. > 10. Start SLAPD. > You are now ready to start the Standalone LDAP Daemon, slapd(8), by > running the command: > su root -c /usr/local/libexec/slapd -F /usr/local/etc/cn=config And here that would also be /usr/local/etc/slapd.d --Quanah -- Quanah Gibson-Mount Product Architect Symas Corporation Packaged, certified, and supported LDAP solutions powered by OpenLDAP: <http://www.symas.com>

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Filtered proxy to Active Directory
by Kamenko Pajic 23 Apr '17

23 Apr '17

We have Panasonic KX-UTG300B phones (SIP phone) which has LDAP Phonebook option. Settings on the phone to make this work are simple: LDAP Server Address: LDAP Server Port: LDAP Authentication ID: LDAP Authentication Password: LDAP Search Base: When I go to LDAP address book on the phone I get thousands of entries listing not only users with their phone number but also all other entries like resources, empty lines(???), N/A, Distribution lists .. Etc. in short probably everything. There is no way I can set up a filter to filter users only that have phone number set in AD. What I need is LDAP proxy server which will be queried by our phones instead of querying AD Server directly and return filtered list (example: just entries containing information in "telephoneNumber" attribute) Is this possible? I've been trying for weeks now with no success. Please someone, send me sample ldap.conf and slapd.conf configuration files Thanks

4 3

Manual LDAP 2.4.44 Installation
by Alexandre Vilarinho 23 Apr '17

23 Apr '17

Hello all, Recently I've installed LDAP - version 2.4.44 Manually in a Ubuntu 16.04 TLS server. root@Linux-LDAP-SERVER:~# lsb_release -aNo LSB modules are available.Distributor ID: UbuntuDescription: Ubuntu 16.04.2 LTSRelease: 16.04Codename: xenialroot@Linux-LDAP-SERVER:~# I followed every step in the official Quick-Start Quide (http://www.openldap.org/doc/admin24/quickstart.html) But from step 9 forward it practically didn't work: 9.Import the configuration database You are now ready to import your configration database for use by slapd(8), by running the command:su root -c /usr/local/sbin/slapadd -F /usr/local/etc/cn=config -l /usr/local/etc/openldap/slapd.ldif root@Linux-LDAP-SERVER:~# /usr/local/sbin/slapadd -F /usr/local/etc/cn=config -l /usr/local/etc/openldap/slapd.ldif58fa3f94 invalid config directory /usr/local/etc/cn=config, error 2slapadd: bad configuration directory! root@Linux-LDAP-SERVER:~# 10. Start SLAPD. You are now ready to start the Standalone LDAP Daemon, slapd(8), by running the command:su root -c /usr/local/libexec/slapd -F /usr/local/etc/cn=config To check to see if the server is running and configured correctly, you can run a search against it with ldapsearch(1). By default, ldapsearch is installed as /usr/local/bin/ldapsearch:ldapsearch -x -b '' -s base '(objectclass=*)' namingContexts Note the use of single quotes around command parameters to prevent special characters from being interpreted by the shell. This should return:dn: namingContexts: dc=example,dc=com root@Linux-LDAP-SERVER:~# /usr/local/libexec/slapd -F /usr/local/etc/cn=configroot@Linux-LDAP-SERVER:~# ldapsearch -x -b 'dc=example,dc=com' '(objectclass=*)'ldap_sasl_bind(SIMPLE): Can't contact LDAP server (-1)root@Linux-LDAP-SERVER:~# What am i doing wrong? Why can't it contact the server, if the installation was ok, with no errors ou warnings... Regards

2 1

Multi Master replication with many 'nonpresent_callback' lines
by Jesper Grøndahl 22 Apr '17

22 Apr '17

Hi everyone We have a multi-master replication setup with 3 nodes (running openldap-2.4.40 on Debian Jessie). The sync of the config database and the user database is working fine. However, when we modify/delete an object on one node we get a "nonpresent_callback" line for each of our users on the two other nodes. Our log level is stats and sync. The logs look like this, for the user being modified ----- nonpresent_callback: rid=005 present UUID 528929d6-acaa-1036-922a-a3f5c9285d9d, dn uid=xxx,ou=users,dc=ruc,dc=dk Entry uid=xxx,ou=users,dc=ruc,dc=dk CSN 20170406140323.504919Z#000000#002#000000 greater than snapshot 20170403102309.253881Z#000000#002#000000 ----- ... and something like this for the rest of the users ----- nonpresent_callback: rid=005 present UUID c7cf376c-acaa-1036-8052-a3f5c9285d9d, dn uid=yyy,ou=users,dc=ruc,dc=dk ----- We only expected the log entry for the modified user and not for all the rest of the users too. Is this the way it should be because of the log level setting or is it not normal? If this is not the way it's supposed to be I'll of course supply you with our configs. Thanks in advance. Sincerely yours, Jesper

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Re: Filtered proxy to Active Directory
by Howard Chu 22 Apr '17

22 Apr '17

Kamenko Pajic wrote: > We have Panasonic KX-UTG300B phones (SIP phone) which has LDAP Phonebook option. > > > > Settings on the phone to make this work are simple: > > > > LDAP Server Address: > > LDAP Server Port: > > LDAP Authentication ID: > > LDAP Authentication Password: > > LDAP Search Base: > > > > When I go to LDAP address book on the phone I get thousands of entries listing > not only users with their phone number but also all other entries like > resources, empty lines(???), N/A, Distribution lists …. Etc. in short probably > everything. Sounds like quite a stupid phone; they probably expected you to point the search base at an "ou=people" folder that doesn't contain any other types of entries. > There is no way I can set up a filter to filter users only that have phone > number set in AD. > > > > What I need is LDAP proxy server which will be queried by our phones instead > of querying AD Server directly and return filtered list (example: just entries > containing information in “telephoneNumber” attribute) > > > > Is this possible? I’ve been trying for weeks now with no success. I'm not aware of any existing modules that do what you want. But it would be a trivially small piece of overlay code to write. > Please someone, send me sample ldap.conf and slapd.conf configuration files > > > > > > Thanks > -- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/

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Re: LMDB master branch
by Howard Chu 21 Apr '17

21 Apr '17

opensource(a)gmx-topmail.de wrote: > Hi there, > > I am on the mdb.master branch because of MDB_VL32. We updated the LMDB code in January, and before I update to the latest commit I wanted to check with you. > > Disclaimer: I am aware of being outside of the official release cycles and potential risks. On the other hand, we have a lot of unit tests, and a pretty good installation base. In that way it is also a good test for LMDB. > > Now to my questions: > 1) What are your rough plans with mdb.master in terms of time line and features? > (With the 0.9.20 release being delayed, new features may pile up in mdb.master. When will they be merged?) 0.9 is not receiving any more new features. Any features not yet released are slated for 1.0. > 2) Is mdb.master running on any systems you know of? mdb.master is a development branch only. > 3) Recent changes in mdb.master also include format changes for the locking file (e.g. commit "Store lock ID instead of pathname in lockfile"). What are the consequences when updating from an older version? The lock file is ephemeral. There is a possibility of a clash if two processes linked against different versions access the same environment at the same time, otherwise there's no issue. > 4) Are the formats for lock & data files considered stable? Nothing in mdb.master is considered stable. > Thanks, > Markus > > -- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/

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openldap-technical