openldap-technical

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9989 discussions

Authenticate a Samba box to a pre-existing LDAP server
by Marcelo Pereira 17 Apr '12

17 Apr '12

Hello, I have been reading some documentation on how to setup a Samba+LDAP environment, but they are all considering that I'm setting up a "new" LDAP server on the same machine. I want to set up a Samba server (which is my server) but I would like to use an external LDAP server (which I don't have any access other than just authenticate myself) to authenticate the users in my Samba box. The LDAP server is up and running (I can't do anything there). I just need to connect my Samba box to this LDAP server in order to authenticate the users. Would you please suggest the right documentation so I could read it?? I will appreciate any help on this regard!! Thanks, Marcelo

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ldapd vs. slapd
by Richards, Toby 17 Apr '12

17 Apr '12

I've been attempting to get an OpenLDAP server running all day, and I've been reading official documentation, tutorials, and anything else relevant on Google. I have some questions: 1. What is the difference between ldapd & slapd (and commands such as ldapadd & slapdadd)? Slapd doesn't seem to respond on LDAP ports, but ldapd does. 2. When using commands & configuring ldap.conf, can I use an IP address instead of an FQDN for the host URI? 3. Do self-signed certificates break ldapadd? 4. I'm running with an SSL certificate, but no TLS. I commonly get the error "Confidentiality Required." The -Z option is for TLS. How do I tell ldapadd that I'm using SSL only? I tried with -Hldaps://hostname:636, but then I get "ldap_sasl_bind(SIMPLE): Can't connect to LDAP server" (even if I use the -x option). I know that the ldap server is running because when ldapd is running, I can connect with external tools such as jxplorer or ldap-at (but trying to make changes to my database will crash both of those utilities). Respectfully Submitted, R. Toby Richards Network Administrator Superior Court of California In and For the County of San Luis Obispo (805) 781-4150

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Multiple error codes defined as (-1)
by Jan Synacek 17 Apr '12

17 Apr '12

Hello all, There are multiple error codes defined as (-1) in ldap.h. When you call ldap_result() followed by a ldap_get_option(ld, LDAP_OPT_RESULT_CODE, &err) how do you distinguish between the meanings of -1? How does ldap_err2string() do that? -- Jan Synacek Software Engineer, BaseOS team Brno, Red Hat

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Unexpected slapd shutdown (bad file descriptor)
by Stefan Wold 16 Apr '12

16 Apr '12

Hi, I've got an issue with OpenLDAP 2.4.28 on Ubuntu 12.04 where it unexpectedly shutdown due to a bad file descriptor. I wonder if anyone know what could be causing this problem or where I should be looking to figure it out. This seems to occur when the server is handling many simultaneous queries. Judging by the bugtracker there has been similar issues in earlier versions. A few log entries: Apr 13 15:03:14 sukat-test-ldapro02 slapd[30273]: slapd(23): setsockopt(SO_KEEPALIVE) failed errno=9 (Bad file descriptor) Apr 13 15:03:14 sukat-test-ldapro02 slapd[30273]: slapd(23): setsockopt(TCP_NODELAY) failed errno=9 (Bad file descriptor) Apr 13 15:03:14 sukat-test-ldapro02 slapd[30273]: daemon: epoll_ctl(ADD,fd=23) failed, errno=1, shutting down Apr 13 15:03:14 sukat-test-ldapro02 slapd[30273]: daemon: abnormal condition, shutdown initiated. Apr 13 15:03:14 sukat-test-ldapro02 slapd[30273]: conn=109877 fd=18 closed (slapd shutdown) Apr 13 15:03:14 sukat-test-ldapro02 slapd[30273]: conn=109881 fd=20 closed (slapd shutdown) Apr 13 15:03:14 sukat-test-ldapro02 slapd[30273]: conn=109879 fd=21 closed (slapd shutdown) Apr 13 15:03:14 sukat-test-ldapro02 slapd[30273]: conn=109880 fd=22 closed (slapd shutdown) For a complete log: https://gist.github.com/2994c23ff506ffdaf21f -- Stefan Wold IT-services, Stockholm University

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ldapdelete "ldap_bind: Invalid DN syntax (34)"
by Tianyin Xu 16 Apr '12

16 Apr '12

Hi, Sorry for the newbie question, but I really cannot figure out the problem. I just follow the "A Quick-Start Guide", what I did is build a example.ldif as follows: -------------------------example.ldif---------------- dn: dc=example,dc=com objectclass: dcObject objectclass: organization o: Example Company dc: example dn: cn=Manager,dc=example,dc=com objectclass: organizationalRole cn: Manager ----------------------------------------------------------- Then, using ldapadd to insert these entries: ldapadd -x -D "cn=Manager,dc=example,dc=com" -f example.ldif -w secret adding new entry "dc=example,dc=com" adding new entry "cn=Manager,dc=example,dc=com" Everything is fine. ***** Then, I want to use ldapdelete to delete the entries I added just now. I tried ldapdelete "cn=Manager,dc=example,dc=com" -x -w secret ldap_bind: Invalid DN syntax (34) additional info: invalid DN and, also, I tried ldapdelete -D "cn=Manager,dc=example,dc=com" -x -w secret but this time the client just hangs. I read the manuals and search on google but still does not have idea. my ldap.conf is as follows database bdb suffix "dc=example,dc=com" rootdn "cn=Manager,dc=example,dc=com" rootpw secret directory /usr/local/var/openldap-data Could anyone take a look and tell me why? Thanks a lot! -- Tianyin

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Re: JLDAP problem
by Bahadir Konu 15 Apr '12

15 Apr '12

What I m working on is an integration component that will listen to LDAP server. When a change occurs on LDAP entries, my component will publish a message. (actually call a web service). LDAP admins offer that I can use "change logs" to detect changes. But I think notification mechanism is a better choice. Do you think JLDAP and asynch "search" method a good enough choice? Is UnboundID SDK better for me and why? Thanks. Bahadır Konu On 13 April 2012 19:43, Quanah Gibson-Mount <quanah(a)zimbra.com> wrote: > --On Friday, April 13, 2012 5:00 PM +0300 Bahadir Konu <bah.konu(a)gmail.com> > wrote: > > Thanks Nick. >> After building from source, problem dissapeared. And I was able to debug. >> > > If you are serious about using Java to talk to LDAP, then I would advise > using the UnboundID SDK. > > --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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reqStart<= slow
by Michael Ströder 14 Apr '12

14 Apr '12

HI! I'm trying to retrieve change events from accesslog DB (all with today's RE24). I tried searching with this filter: (&(reqDN=cn=Test-Mail-Gruppe 1,dc=example,dc=com)(reqStart<=20120413180000Z)) This turned out to be quite slow though. reqDN is indexed and there are only two possible entries. Using a filter reqStart>= even when negated with (!()) is pretty fast. I really wonder why that is. Ciao, Michael.

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Re: AW: Re: How can I set an LDAP-attribute to "null" (empty)?
by masarati＠aero.polimi.it 13 Apr '12

13 Apr '12

[please keep replies on the list] > IŽm sorry, but that is not a qualified answer... OK, I'll try to be more precise. 1) "TelUser": not a standard track attribute. Please provide its specification (significantly, its syntax) otherwise the point is moot. 2) few standard track syntaxes allow zero length strings; see RFC4517. In short, RTFM to see if the syntax of your "TelUser" allows a zero length string. It appears from the description of your problem, that you want to zero out a value, not actually store a zero length value. This is common of rdbms users, where tables have a fixed structure and when some field is not defined one just wants to store an empty value in it. LDAP, instead allows object to have optional attributes; when optional attributes are not needed, they should not appear at all. If your problem is with the tool you're using, that has nothing to do with OpenLDAP; so please ask the appropriate forum. p. > > ----- Ursprüngliche Nachricht ----- > Von: masarati(a)aero.polimi.it > An: norbert.weckert(a)arcor.de > Cc: openldap-technical(a)openldap.org > Gesendet: 13.04.12 23:26 > Betreff: Re: How can I set an LDAP-attribute to "null" (empty)? > >> Hello, >> >> to fill data into an LDAP-structure, I use the software HP Connect IT. >> Sometimes it is necessary to clear an attribute. >> >> But there is the following error message: >> >> Error occured while modifiying the entry (LDAP) >> TelUser value #0 invalid per Syntax >> LDAP API Invalid Syntax >> >> Can you tell me, what I have to do, so that LDAP accepts an "empty >> value"? > > Nearly no syntax accepts the empty value. What you need to do is delete > the attribute using a standard LDAP modify operation. In LDIF: > > dn: (the DN) > changetype: modify > delete: TelUser > - > > How to do it using that specific software is up to you. > > p. > > >

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How can I set an LDAP-attribute to "null" (empty)?
by norbert.weckert＠arcor.de 13 Apr '12

13 Apr '12

Hello, to fill data into an LDAP-structure, I use the software HP Connect IT. Sometimes it is necessary to clear an attribute. But there is the following error message: Error occured while modifiying the entry (LDAP) TelUser value #0 invalid per Syntax LDAP API Invalid Syntax Can you tell me, what I have to do, so that LDAP accepts an "empty value"? Thank you in advance. Kind regards Norbert Weckert

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JLDAP problem
by Bahadir Konu 13 Apr '12

13 Apr '12

Hi everybody, I m working on an application that will listen to LDAP server (IBM Tivoli) and detect changes to LDAP entries. I saw the SearchPersist example and done the same: http://developer.novell.com/documentation/samplecode/jldap_sample/controls/… This example works fine as a standalone Java application. But when I try to make this a scheduled quartz job and deploy my application as an Enterprise Application to IBM Websphere ESB server, this line does not work: // Asynchronous queue = lc.search(searchBase, // container to search LDAPConnection.SCOPE_SUB, // search container's subtree "(objectClass=*)", // search filter, all objects attrs, // don't return attributes false, // return attrs and values, ignored null, // use default search queue constraints); // use default search constraints When I debug, the thread hangs here. And right now I cannot debug the JLDAP itself because my .class files was not produced with line number info. Synchronous version of the method works fine: LDAPSearchResults results = lc.search(searchBase, LDAPConnection.SCOPE_SUB, "(objectClass=*)", attrs, false ); I guess that the quartz scheduler is creating a seperate thread and the asynch version of the method doesnt work. But I m not sure what actually is happening. Am I doing something wrong? Is it possible to use the asynch search method in a scheduled job? (And the app is deployed to ESB server but that may not be relevant to my problem.) Ask me and I can give more details about the application, if needed. Any help is appreciated. Bahadır Konu

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