openldap-technical November 2009

openldap-technical@openldap.org

51 participants
58 discussions

Virtual list view problem
by Venish Khant 31 May '16

31 May '16

Hi all I am using cpan Net::LDAP module to access LDAP entries. I want to search LDAP entries using Net::LDAP search method. When I do search, I want some limited number of entries from search result, for this(searching) process I am using Net::LDAP::Control::VLV module. But I get error on VLV response control. Please, any one have idea about this error. * Error:* Died at vlv.pl line 50, This is my example. I changed the font style of line 50 #!/usr/bin/perl -w use Net::LDAP; use Net::LDAP::Control::VLV; use Net::LDAP::Constant qw( LDAP_CONTROL_VLVRESPONSE ); use Net::LDAP::Control::Sort; sub procentry { my ( $mesg, $entry) = @_; # Return if there is no entry to process if ( !defined($entry) ) { return; } print "dn: " . $entry->dn() . "\n"; @attrs = $entry->attributes(); foreach $attr (@attrs) { #printf("\t%s: %s\n", $attr, $entry->get_value($attr)); $attrvalue = $entry->get_value($attr,asref=>1); #print $attr.":". $entry->get_value($attr)."\n"; foreach $value(@$attrvalue) { print "$attr: $value\n"; } } $mesg->pop_entry; print "\n"; } $ldap = Net::LDAP->new( "localhost" ); # Get the first 20 entries $vlv = Net::LDAP::Control::VLV->new( before => 0, # No entries from before target entry after => 19, # 19 entries after target entry content => 0, # List size unknown offset => 1, # Target entry is the first ); my $sort = Net::LDAP::Control::Sort->new( order => 'cn' ); @args = ( base => "dc=example,dc=co,dc=in", scope => "subtree", filter => "(objectClass=inetOrgPerson)", callback => \&procentry, # Call this sub for each entry control => [ $sort, $vlv ], ); $mesg = $ldap->search( @args ); # Get VLV response control *($resp) = $mesg->control( LDAP_CONTROL_VLVRESPONSE ) or die;* $vlv->response( $resp ); # Set the control to get the last 20 entries $vlv->end; $mesg = $ldap->search( @args ); # Get VLV response control ($resp) = $mesg->control( LDAP_CONTROL_VLVRESPONSE ) or die; $vlv->response( $resp ); # Now get the previous page $vlv->scroll_page( -1 ); $mesg = $ldap->search( @args ); # Get VLV response control ($resp) = $mes # Now page with first entry starting with "B" in the middle $vlv->before(9); # Change page to show 9 before $vlv->after(10); # Change page to show 10 after $vlv->assert("B"); # assert "B" $mesg = $ldap->search( @args );g->control( LDAP_CONTROL_VLVRESPONSE ) or die; $vlv->response( $resp ); -- Venish Khant www.deeproot.co.in

4 11

Query performance degrades over time.
by Laurence Field 09 Dec '09

09 Dec '09

Hi, We are experiencing a decay in query performance over time using OpenLDAP 2.3.43 on CentOS 5. After populating the database with about 70 000 entries, the query response time for one entry is about 0.4s. After about two hours the same query takes over 1s. The slapd.conf file and DB_CONFIG files that we use can be found at the following URLs. http://svnweb.cern.ch/trac/gridinfo/browser/bdii/trunk/etc/bdii-slapd.conf http://svnweb.cern.ch/trac/gridinfo/browser/bdii/trunk/etc/DB_CONFIG Does anyone have an idea about what is happening. Thanks Laurence

8 13

OpenLDAP 2.4.16 hanging - ideas welcome
by J. Landamore 03 Dec '09

03 Dec '09

We run 4 2.4.16 servers as 2 provider/consumer pairs, one pair for our staff systems and one pair for our teaching facilities. They are all on Solaris10u7 xen virtual hosts. The staff pair run fine The consumer on the teaching pair runs fine The provider on the teaching pair runs fine until it gets hit by a heavy load, eg start of a lab when ~100 PCs try and authenticate their user. At this point it refuses to serve LDAP requests. Traffic is still coming in to the box and existing connections seem OK. The break point is about 35PCs, below that there isn't a problem. Restarting slapd cures the problem and off we go until the start of the next big lab. I've run at various log levels but not been able to see any obvious messages. All I see, even when everything is fine, are messages of the form send_search_entry: conn 11639 ber write failed. connection_read(38): no connection! The slapd.conf (minux the syncprov bit) is: include /usr/local/etc/openldap/schema/core.schema include /usr/local/etc/openldap/schema/cosine.schema include /usr/local/etc/openldap/schema/inetorgperson.schema include /usr/local/etc/openldap/schema/nis.schema include /usr/local/etc/openldap/schema/duaconf.schema include /usr/local/etc/openldap/schema/local.schema pidfile /var/openldap/run/slapd.pid argsfile /var/openldap/run/slapd.args conn_max_pending 200 idletimeout 60 sizelimit 2000 loglevel 256 database bdb suffix "dc=my,dc=domain" rootdn "cn=me,dc=my,dc=domain" rootpw {SSHA}guess directory /var/openldap/openldap-data index cn,entryCSN,entryUUID,gidNumber,ipHostNumber,memberUid eq index objectclass,uid,uidNumber,uniqueMember eq cachefree 16 cachesize 1500 checkpoint 0 60 dncachesize 1500 idlcachesize 3000 access to attrs=userPassword by self write by anonymous auth by dn.base="cn=fred,ou=Profile,dc=my,dc=domain" read by * none access to * by self write by users read by * read The only entry in DB_CONFIG is set_cachesize 0 26214400 0 cache hits are at 99% I'm stumped for a cause/solution, can anyone either give me a pointer as to what to look for in the logs or suggest a possible cause. Could it be hitting the 256 open file limit? Thanks -- John Landamore Department of Computer Science University of Leicester University Road, LEICESTER, LE1 7RH J.Landamore(a)mcs.le.ac.uk Phone: +44 (0)116 2523410 Fax: +44 (0)116 2523604

2 1

dynlist overlay feature request
by Alexander 'Leo' Bergolth 02 Dec '09

02 Dec '09

Are there any plans to extend the dynlist overlays dynamic group feature to return not the DNs of the matched entries but an attribute of the entries? This would be useful for defining dynamic groups based on posixGroup (which need only the username, not the full DN) and populating them with entries from posixAccounts. If the dynlist-attrset could be extended by one parameter like: dynlist-attrset <group-oc> <URL-ad> [<member-ad>] [<result-ad>] ... where the additional parameter specifies the attribute that should be returned from the search results, a dynamic posixGroup could be configured like that: dynlist-attrset myposixGroup memberURL memberUid uid with a search filter like that: ldap:///ou=users,dc=local,dc=site??sub?(&(objectClass=posixAccount)(<searchfilter>)) I.e. "take the uid attribute of the matched entries and add them as memberUid." Could this extension be easily implemented? Is there currently any workaround? E.g. a way to dynamically add a memberUid to each posixAccount that contains the same data as the uid attribute? If that works, a filter like ldap:///ou=users,dc=local,dc=site?memberUid?sub?(&(objectClass=posixAccount)(<searchfilter>)) ... could work. Thanks in advance, --leo -- e-mail ::: Leo.Bergolth (at) wu.ac.at fax ::: +43-1-31336-906050 location ::: IT-Services | Vienna University of Economics | Austria

3 6

Poor Performance on HP-UX 11v3
by 宋杨 30 Nov '09

30 Nov '09

Hi I install openldap(ixOpenLDAP_A.13.00-2.4.16.001_HP-UX_B.11.23_IA_PA.depot) on HP-UX 11v3 But I have a low performance when multi thread search, when one search thead about 0-1 ms, but when 10 search threads about 300+ms. By the way all conf files are default. Any suggestions? Thanks

2 1

/etc/nsswitch cause delay in start
by vishesh kumar 27 Nov '09

27 Nov '09

Dear friends I am facing a unique problem in openldap 2.3.43 on rhel 5. 2. If i specify ldap in /etc/nsswitch.conf like passwd files ldap shadow files ldap group files ldap And then start my ldap server, it takes lots of time to start ldap server. If i remove ldap from /etc/nsswitch.conf , it start immediately. Can anyone suggest be any solution for this problem. Thanks -- http://linuxinterviews.blogspot.com

4 4

Syncrepl : Authentication issue
by smainklh＠free.fr 27 Nov '09

27 Nov '09

Hello guys, I'm meeting an issue when configuring ldap replication. The synchronisation account doesn't authenticate with the provider. Here are my configuration files : /etc/ldap/slapd.conf (provider): ----------------------- moduleload syncprov database bdb overlay syncprov syncprov-checkpoint 100 10 syncprov-sessionlog 100 index objectClass,entryCSN,entryUUID eq /etc/ldap/slapd.conf (consumer): -------------------------- Syncrepl rid=666 provider=ldaps://provider.domain.tld:636/ type=refreshOnly retry="60 10 600 +" interval=00:00:30:00 searchbase="dc=domain,dc=tld" scope=sub schemachecking=on bindmethod=simple binddn="cn=syncrepluser,dc=domain,dc=tld" credentials=secret Errors below : >From consumer ------------ slap_client_connect: URI=ldaps://provider.domain.tld:636/ DN="cn=syncrepluser,dc=domain,dc=tld" ldap_sasl_bind_s failed (49) do_syncrepl: rid=666 retrying (9 retries left) >From provider ------------ Nov 26 15:28:47 provider slapd[2514]: do_bind: version=3 dn="cn=syncrepluser,dc=domain,dc=tld" method=128 Nov 26 15:28:47 provider slapd[2514]: bdb_dn2entry("cn=syncrepluser,dc=domain,dc=tld") Nov 26 15:28:47 provider slapd[2514]: => bdb_dn2id("cn=syncrepluser,dc=domain,dc=tld") Nov 26 15:28:47 provider slapd[2514]: <= bdb_dn2id: get failed: DB_NOTFOUND: No matching key/data pair found (-30990) Nov 26 15:28:47 provider slapd[2514]: send_ldap_result: conn=3 op=0 p=3 Nov 26 15:28:47 provider slapd[2514]: send_ldap_response: msgid=1 tag=97 err=49 Nov 26 15:28:47 provider slapd[2514]: connection_get(14): got connid=3 Nov 26 15:28:47 provider slapd[2514]: connection_read(14): checking for input on id=3 Nov 26 15:28:47 provider slapd[2514]: ber_get_next on fd 14 failed errno=0 (Success) Nov 26 15:28:47 provider slapd[2514]: connection_closing: readying conn=3 sd=14 for close Nov 26 15:28:47 provider slapd[2514]: connection_close: deferring conn=3 sd=14 Nov 26 15:28:47 provider slapd[2514]: conn=3 op=1 do_unbind Nov 26 15:28:47 provider slapd[2514]: connection_resched: attempting closing conn=3 sd=14 Nov 26 15:28:47 provider slapd[2514]: connection_close: conn=3 sd=14 Do i have to create an account in the ldap tree? Is there a problem using SSL? Thank you for your help. Regards, Grifith

2 2

LDAP + squid
by Bruno Steven 27 Nov '09

27 Nov '09

Hello ... My squid work fine with Openldap, but I need change method authentication of user for groups , so I made the configuration follow . # As linhas abaixo se referem a autenticaÃ§ de usuÃ¡os no AD auth_param basic program /usr/local/squid/libexec/squid_ldap_auth -R -b "dc=amblivre,dc=com" -D "cn=proxy_user,ou=Internet,dc=amblivre,dc=com" -w "password" -f sAMAccountName=%s -h 192.168.4.55 auth_param basic realm Input your password auth_param basic children 5 auth_param basic credentialsttl 15 minutes #acl senha proxy_auth REQUIRED #http_access allow senha # ACL externa para autenticaÃ§ nas bases LDAP do PDC external_acl_type ldap_group %LOGIN /usr/local/squid/libexec/squid_ldap_group -R -b "dc=amblivre,dc=com" -D "cn=proxy_user,ou=Internet,dc=amblivre,dc=co m" -w "password" -f "(&(objectclass=person)(sAMAccountName=%v)(memberof=cn=%a,ou=Internet,dc=amblivre,dc=com))" -h 192.168.4.55 acl AcessoLivre external ldap_group AcessoLivre http_access AcessoLivre When the I input user and passord for auth the Squid doesn´t recognize the credentials . There are some problem in my configuration ? Thanks. -- Bruno Steven - Administrador de sistemas. LPIC-1 - LPI ID: lpi000119659 / Code: p2e4wz47e4 https://www.lpi.org/caf/Xamman/certification MCP-Windows 2003 - TranscriptID: 793804 / Access Code: 080089100 https://mcp.microsoft.com/authenticate/validatemcp.aspx P Antes de imprimir pense em sua responsabilidade e comprometimento com o Meio Ambiente. Before printing this message, think about your ecologic responsability and environment commitment.

2 1

Migrate BD for Mysql
by Bruno Steven 26 Nov '09

26 Nov '09

Hello I am testing many cenarios of Open-Ldap, now I want test mysql such data base for Openldap . Somebody know how migrate BD Openldap for Mysql ? Thanks. -- Bruno Steven - Administrador de sistemas. LPIC-1 - LPI ID: lpi000119659 / Code: p2e4wz47e4 https://www.lpi.org/caf/Xamman/certification MCP-Windows 2003 - TranscriptID: 793804 / Access Code: 080089100 https://mcp.microsoft.com/authenticate/validatemcp.aspx P Antes de imprimir pense em sua responsabilidade e comprometimento com o Meio Ambiente. Before printing this message, think about your ecologic responsability and environment commitment.

2 1

Search responses with incorrect msgId
by Eduardo Ramos Testillano 26 Nov '09

26 Nov '09

Hi all, My application is an ldap client based on openLdap suite. I'm having problems when receiving search responses with incorrect msgId. The problem is: always returns error -1 being impossible to discriminate other situations like remote server close. The application always detach the connection fd when -1 is received (99% is broken connection). But we don't want to do close this when "receive a search response with out-of-context msgId" (usually "out-of-time search result entries" after sending AbandonRequest from client). I can't use ldap_msgid, because 'LDAPMessage*' is NULL and causes abort() (anyway, no special result code is specified for this situation at ldap_msgid API description). My code: LDAP* handle = (LDAP*) a_ldap; LDAPMessage* hmessage (NULL); resultCode = ldap_result (handle, LDAP_RES_ANY, LDAP_MSG_ONE, NULL, &hmessage); // I test the following, hoping result is not -1 with LDAP_RES_UNSOLICITED, but it returned -1 again... if (resultCode.getValue () == -1) resultCode = ldap_result (handle, LDAP_RES_UNSOLICITED, LDAP_MSG_ONE, NULL, &hmessage); ¿do you know any other way to identify responses with incorrect msgid? thnks Regard, Edu

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openldap-technical November 2009