openldap-technical

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9796 discussions

Is it possible to create something like an alias or mapping
by Christian Balz 01 Oct '15

01 Oct '15

Hi for all, We have an application that search an attribute named 'manager', however in our OpenLDAP this attribute is called 'DomainGestor'. Is it possible to create something like an alias or mapping. So, when the application is called the attribute 'manager' the ldap return the value of 'DomainGestor' DomainGestor uid=userX,cn=u,cn=users,dc=mydomain,dc=com Regards Christian

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SSHA hash are stores as '{ssha}......' and '{SSHA}......'
by Matthias Apitz 30 Sep '15

30 Sep '15

Hello, We are authenticating from some Java written software against an OpenLDAP system by reading the users 'userPassword' LDAP attribute, calculating the clear text password against the SSHA hash string. It turned out that some (a few number) of these hash are stored in the form: userPassword:: e3NzaGF9R2tSOU91SGhOakFoZzBWeVNtY0JHRUE5b2NMVU5GZWZnY0VaMXc9PQ== which decodes to: $ echo 'e3NzaGF9R2tSOU91SGhOakFoZzBWeVNtY0JHRUE5b2NMVU5GZWZnY0VaMXc9PQ==' | openssl base64 -d {ssha}GkR9OuHhNjAhg0VySmcBGEA9ocLUNFefgcEZ1w== i.e. with SSHA in small letters. It's only 1 of thousand users having the tag as '{ssha}'. Why is this? Thanks matthias -- Matthias Apitz, ✉ guru(a)unixarea.de, 🌐 http://www.unixarea.de/ ☎ +49-176-38902045 No! Nein! ¡No! Όχι! -- Ευχαριστούμε!

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ACL issue
by Varadi, Louis - 0442 - MITLL 30 Sep '15

30 Sep '15

Hello, I could please use your help regarding issues I am seeing with user access authenticating to my new LDAP server. I am new to LDAP, and am building my first server. I have created a new user (lou) and client (ldapServer) and am trying to authenticate the user through the client. I have configured the LDAP server to also be the LDAP test client. I am seeing the following errors in the /var/log/sssd/sssd_default.log when I run: getent passwd lou or su - lou (Fri Sep 25 16:43:15 2015) [sssd[be[default]]] [fo_resolve_service_send] (0x0100): Trying to resolve service 'LDAP' (Fri Sep 25 16:43:15 2015) [sssd[be[default]]] [sdap_get_rootdse_done] (0x0040): RootDSE could not be retrieved. Please check that anonymous access to RootDSE is allowed (Fri Sep 25 16:43:15 2015) [sssd[be[default]]] [sdap_cli_auth_step] (0x0100): expire timeout is 900 (Fri Sep 25 16:43:15 2015) [sssd[be[default]]] [fo_set_port_status] (0x0100): Marking port 389 of server 'IP_Address' as 'working' (Fri Sep 25 16:43:15 2015) [sssd[be[default]]] [set_server_common_status] (0x0100): Marking server 'IP_Address' as 'working' (Fri Sep 25 16:43:15 2015) [sssd[be[default]]] [sdap_get_generic_op_finished] (0x0040): Unexpected result from ldap: Insufficient access(50), no errmsg set (Fri Sep 25 16:43:15 2015) [sssd[be[default]]] [generic_ext_search_handler] (0x0040): sdap_get_generic_ext_recv failed [5]: Input/output error (Fri Sep 25 16:43:15 2015) [sssd[be[default]]] [sdap_get_users_done] (0x0040): Failed to retrieve users According to the doc for common-errors doc. http://www.openldap.org/doc/admin24/appendix-common-errors.html I believe I am having an issue with the Default ACLs. I have been doing much reading and am coming up short. My questions are: First: how to delete the current default ACLs using a command line entry, or using a ldapmodify on a .ldif file Second: how to add a new ACL allowing all users access using a command line entry or .ldif file. Once I get the user lou (and other test users) to connect, I will change the ACL access rules for restriction. I need to get it working first. Also, is there a step by step beginners guide for the ACL process? Any help is greatly appreciated. Thank you - Lou

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Issues with Openldap upgrade 2.4.21 to 2.4.31
by Laurent Dumont 30 Sep '15

30 Sep '15

Hi gents, I'm currently trying to upgrade my "aging" Ubuntu 10.04 physical server with OpenLdap 2.4.21 to a brand new VM running 2.4.31 (which seems to be provided by default with the standard repository while being somewhat old?). That said, I'm running into a few issues. Am I correct in assuming that a standard migration would go something like this : #On the original LDAP server sudo slapcat -l /root/ldapdump #Copy that file over to the new LDAP server sudo slapadd -v -d 1 -l ldapdump Unfortunately, that's where it fails. I see : 560ade84 str2entry: invalid value for attributeType objectClass #2 (syntax 1.3.6.1.4.1.1466.115.121.1.38) slapadd: could not parse entry (line=1) It seems that I'm missing something pretty obvious here. Anyone has any pointers? Thanks

2 1

basic ldap functions
by Friedrich Locke 28 Sep '15

28 Sep '15

Hi folks! i would like to implement a simple interface ldap to connect my client programs to the sever ldap machine in my job. I would like to implement only the necessary in order to my client app to handle ldap. My listing of function goes below: 0. Connecting, disconnecting, authenticating ldap_connect, ldap_open, ldap_bind and ldap_unbind. 1. Searching and retrieving entries ldap_search, ldap_first_entry and ldap_next_entry. 2. Manipulating entries ldap_add, ldap_modify, ldap_modrdn, ldap_delete and ldap_compare. What are the RFC for this function (of course i will implement in ANSI C) ? How to organize data to be sent to the ldap server ? How to decode the data from the ldap server ? etc ..... Thanks a lot for your time and cooperation. Best regards, Fried.

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Net::LDAPapi syncrepl working only intermittently in 2.4.42
by Nat Sincheler 28 Sep '15

28 Sep '15

I have Perl script that implements a syncrepl listener using the listen_for_changes method from Net::LDAPapi (3.0.3). The listener works well with OpenLDAP 2.4.40 but I am having trouble getting it to work consistently with 2.4.42. The code looks something like this: # $LDAP is bound using GSSAPI my $msgid = $LDAP->listen_for_changes( -basedn => "cn=accesslog", -scope => LDAP_SCOPE_SUBTREE, -filter => "objectclass=*", -cookie => "/var/run/sync.cookie"); while (1) { my @entries; while (@entries = $LDAP->next_changed_entries($msgid, 0, -1))) { ... } Most of the time (but not _all_ of the time) the listener fails to pick up any entries from the accesslog and I see these messages in my logs: 2015-09-09T08:32:20.926931-07:00 ldap-jessie0 slapd[631]: conn=1161 op=4 SEARCH RESULT tag=101 err=2 nentries=0 text=Sync control : mode decoding error 2015-09-09T08:32:20.927211-07:00 ldap-jessie0 slapd[631]: conn=1161 op=4 do_search: get_ctrls failed (Fuller log output included below). I know that the credentials can read the access log as I run a simple search against cn=accesslog before the list_for_changes just to be sure the issue is not related to my credentials. What does "Sync control : mode decoding error" mean? Any suggestions on next steps for troubleshooting? #################################################################### 2015-09-09T08:32:20.902032-07:00 ldap-jessie0 slapd[631]: conn=1161 fd=14 ACCEPT from IP=171.67.214.66:39646 (IP=0.0.0.0:389) 2015-09-09T08:32:20.902108-07:00 ldap-jessie0 slapd[631]: conn=1161 op=0 SRCH base="" scope=0 deref=0 filter="(objectClass=*)" 2015-09-09T08:32:20.902207-07:00 ldap-jessie0 slapd[631]: conn=1161 op=0 SRCH attr=supportedSASLMechanisms 2015-09-09T08:32:20.902262-07:00 ldap-jessie0 slapd[631]: conn=1161 op=0 SEARCH RESULT tag=101 err=0 nentries=1 text= 2015-09-09T08:32:20.910842-07:00 ldap-jessie0 slapd[631]: conn=1161 op=1 BIND dn="" method=163 2015-09-09T08:32:20.914261-07:00 ldap-jessie0 slapd[631]: conn=1161 op=1 RESULT tag=97 err=14 text=SASL(0): successful result: mech EXTERNAL is too weak 2015-09-09T08:32:20.917754-07:00 ldap-jessie0 slapd[631]: conn=1161 op=2 BIND dn="" method=163 2015-09-09T08:32:20.917798-07:00 ldap-jessie0 slapd[631]: conn=1161 op=2 RESULT tag=97 err=14 text=SASL(0): successful result: mech EXTERNAL is too weak 2015-09-09T08:32:20.918060-07:00 ldap-jessie0 slapd[631]: conn=1161 op=3 BIND dn="" method=163 2015-09-09T08:32:20.918102-07:00 ldap-jessie0 slapd[631]: conn=1161 op=3 BIND authcid="service/ldap-jessie0(a)stanford.edu" authzid="service/ldap-jessie0(a)stanford.edu" 2015-09-09T08:32:20.918188-07:00 ldap-jessie0 slapd[631]: conn=1161 op=3 BIND dn="cn=ldap-jessie0,cn=service,cn=applications,dc=stanford,dc=edu" mech=GSSAPI sasl_ssf=56 ssf=56 2015-09-09T08:32:20.918240-07:00 ldap-jessie0 slapd[631]: conn=1161 op=3 RESULT tag=97 err=0 text= 2015-09-09T08:32:20.926931-07:00 ldap-jessie0 slapd[631]: conn=1161 op=4 SEARCH RESULT tag=101 err=2 nentries=0 text=Sync control : mode decoding error 2015-09-09T08:32:20.927211-07:00 ldap-jessie0 slapd[631]: conn=1161 op=4 do_search: get_ctrls failed

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unique contraint bypassed by java modify (and correctly enforced by pytho/ldapmodify)
by Alessandro Dentella 28 Sep '15

28 Sep '15

Hi, i have been stryggling with a unique contraint that i being constrantly bypassed by a java script. I setup the ldap server and unique layer and I virified that the uniquened on a field is correctly enforce using ldapmodify, ldapvi, python and one more widget tool. There is a java program I have not written (I don't know java) that constantly bypasses the constraint and I can't really understand how it can. It seems to perform the same operation I do: given an existing item, change mail field. What can it be that is different from one and the other situation? All programs connect with simple authentication + tls. Thanks for any possible hints sandro *:-) PS: I thought to bypass this problem switching to back-sql + PostgreSQL so that I openned up to other problems, subject of a separate email...

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OS X Yosemite clients
by oldap＠mountainlake.k12.mn.us 25 Sep '15

25 Sep '15

I am not able to authenticate users on OS X Yosemite (10.10.5) using OpenLDAP on a Linux server running slapd 2.4.40. This has worked with other versions (10.9, 10.7, etc) going back a very long time. The logs and other tests (such as "id user") show that it is successfully accessing the LDAP data. It just won't authenticate with the password. Has anyone successfully transitioned from OS 10.9 to 10.10 Yosemite with respect to authenticating off of OpenLDAP? What is the best forum for me to start digging into this problem? -- Jon

1 0

back-sql: trasnlating examples from slapd.cong to slapd.d
by Alessandro Dentella 25 Sep '15

25 Sep '15

Hi, I'm trying to configure slapd with back-sql (specifically postgresql backend). All documents I found (Postgresq LDAP Howto seems to be more complete) are related to old configuration that use slapd.conf while I need to use the news slapd.d dynamic one. I can't understand how I should add the entry in the configuration. What I currenty tried is: dn: olcDatabase={1}sql,cn=config objectClass: olcDatabaseConfig objectClass: olcSqlConfig olcSuffix: dc=vega,dc=com olcDatabase: sql olcDbName: mytest But when I run ldapmify I get the error: root@argo-jessie:~# ldapmodify -x -D cn=admin,cn=config -W -f ,ldapvi-argo-jessie-7228.ldif Enter LDAP Password: adding new entry "olcDatabase={1}sql,cn=config" ldap_add: Other (e.g., implementation specific) error (80) additional info: <olcSuffix> failed startup And at 254 debugLevel I get: Sep 23 16:34:18 localhost slapd[5650]: olcSuffix: value #0: <olcSuffix> failed startup (dc=vega,dc=com)! Sep 23 16:34:18 localhost slapd[5650]: send_ldap_result: err=80 matched="" text="<olcSuffix> failed startup" I'm making the test on Debian Jessie with slapd versione 2.4.40 sandro *:-) I opended a question on serverfault: http://serverfault.com/questions/724329/slapd-configuration-for-back-sql-ho… -- Sandro Dentella *:-) http://www.reteisi.org Soluzioni libere per le scuole http://sqlkit.argolinux.org SQLkit home page - PyGTK/python/sqlalchemy

2 1

ACLs whont work
by Fischer, Johannes 23 Sep '15

23 Sep '15

Hi @all, I struggle with the ACLs, I whant a special account to check the username and PW of the entries on the LDAP-server. Therefore I’ve written the following in the slapd.conf file: access to attrs=userPassword by dn="cn=authenticate,dc=vfk,dc=ldap,dc=com" write by self write by anonymous none access to * by * write by anonymous none But I can’t authenticate to the LDAP server, does somebody know why? Greetings John

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openldap-technical