openldap-technical

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9990 discussions

SAML Identity Provider for OpenLDAP
by Marc Patermann 22 Apr '14

22 Apr '14

Hi, I searching for proven "extention" to use my OpenLDAP directory data with an SAML identity provider. I found LemonLDAP:NG and OpenAM as possible candidates. Howtos and success stories are welcome! Marc

4 3

Re: (ITS#7840) bug with initial/seed syncrepl
by Jephte Clain 22 Apr '14

22 Apr '14

hello, thanks for your answer. see my response below 2014-04-20 7:13 GMT+04:00 Howard Chu <hyc(a)symas.com>: > Jephte.Clain(a)univ-reunion.fr wrote: >> >> Full_Name: Jephte CLAIN >> Version: 2.4.39 >> OS: Debian 6 64bits >> URL: http://jclain.fr/openldap-its/ >> Submission from: (NULL) (93.176.62.129) >> >> >> I have scripts to test several replication scenarii, that setup the LDAP >> environment then allow me to play with parameters as I see fit. >> >> I believe that there is a bug with the "seed replication" that allow one >> to >> build an exact clone of a master with minimal configuration on the slave >> side. > > > There is no bug. The syncrepl consumer is working as designed. If you want > the consumer's entries to be automatically overwritten, create the consumer > first so that its seed entries have older timestamps than the provider. ok, it works as designed. I just didn't know what the design was :-) quoting man slapd: Use only the rid part to force a full reload. I guess I didn't notice that the word "full" have a different meaning here than usual about creating the consumer first. you are kidding, right? in production, the provider exists long before the consumer is set up. the tests I do are based on the production state. anyway, my automated scripts "touch" the provider after setting up the slave, so this is not a problem. It's just that I would prefer not to have wasted time wondering why the slave was not being updated even though I asked for a "full" reload Thanks for your answer. It's now clearer in my mind. I Cc the openldap-technical list, this can help others. > >> note: the tests below require 2 VMs, or running the two slapd instances in >> chroots, because a clone replica requires the data files to be in the same >> path... > > > That's far overkill. All you need to do is configure your test scripts to > use relative pathnames. test049 (and others) in the test suite already > operates this way. ok thanks for pointing this out It has been a while since I read the tests scripts. I should have paid more attention... > > Closing this ITS. > >> I attach two scripts to replicate the problem. they require root (they >> uses >> chroots) >> this is with openldap 2.4.39 on debian squeeze. some paths may have to be >> fixed >> in the scripts below >> >> use jclain-20140419-0start.sh to: >> - create a ldap server to be served on ldap://localhost:3890 >> - start the master in chroot >> (the logs are in /jclain-slapd-test/master.data/slapd.log) >> - create a seed ldap replica to be served on ldap://localhost:3891 with >> ldap://localhost:3890 as the provider >> - start it in chroot with option -c rid=0 >> (the logs are in /jclain-slapd-test/slave.data/slapd.log) >> >> use jclain-20140419-1stop.sh to: >> - stop the servers >> - umount the chroots >> >> If I understand the manual correctly, after 0start.sh, the replica should >> be >> identical to the master thanks to -c rid=0 >> BUT, the log on the replica says: >> >> 534d5481 dn_callback : new entry is older than ours cn=config ours >> 20140415154713.807278Z#000000#000#000000, new >> 20140415154704.888204Z#000000#000#000000 >> >> and indeed, the seed entries are NOT overwritten >> I have to "touch" them on the master to force the replication. >> >> I have uploaded the scripts to http://jclain.fr/openldap-its/ >> >> thanks in advance >> >> > > > -- > -- Howard Chu > CTO, Symas Corp. http://www.symas.com > Director, Highland Sun http://highlandsun.com/hyc/ > Chief Architect, OpenLDAP http://www.openldap.org/project/ -- cordialement, Jephté Clain Direction des Systèmes d'Information et des Usages Numériques - 2IG Tél. 0262 93 86 31 Fax. 0262 93 81 06

1 1

TLS init def ctx failed: -73
by ChiiSama 20 Apr '14

20 Apr '14

Hi, does anybody knows what main: TLS init def ctx failed: -73 means ? I replaced my CA, key and cert files. I generated the new certs like the previous before with Debian Stable / CA.pl Script (-newca/newcert). Standard 4096 Bit, rsa/sha certs. Greeting -- Mit freundlichen Grüßen ChiiSama mailto:ChiiSama@gmx.net

2 1

bug(?) with initial/seed syncrepl
by Jephte Clain 19 Apr '14

19 Apr '14

hello, (note: english is not my primary language. I'll do my best to be clear...) I have scripts to test several replication scenarii, that setup the LDAP environment then allow me to play with parameters as I see fit. I believe that there is a bug with the "seed replication" that allow one to build an exact clone of a master with minimal configuration on the slave side. Before I fill an ITS, I'd like to confirm with you that I do the right thing (tm) note: the tests below require 2 VMs, or running the two slapd instances in chroots, because a clone replica requires the data files to be in the same path... this is openldap 2.4.39 on debian squeeze I attach a script to replicate the problem. it requires root (it uses chroots) use 0start.sh to: - create a ldap server to be served on ldap://localhost:3890 - start the master in chroot (the logs are in /jclain-slapd-test/master.data/slapd.log) - create a seed ldap replica to be served on ldap://localhost:3891 with ldap://localhost:3890 as the provider - start it in chroot with option -c rid=0 (the logs are in /jclain-slapd-test/slave.data/slapd.log) use 1stop.sh to: - stop the servers - umount the chroots If I understand the manual correctly, after 0start.sh, the replica should be identical to the master thanks to -c rid=0 BUT, the log on the replica says: 534d5481 dn_callback : new entry is older than ours cn=config ours 20140415154713.807278Z#000000#000#000000, new 20140415154704.888204Z#000000#000#000000 and indeed, the seed entries are NOT overwritten I have to "touch" them on the master to force the replication. so my question is: do I use the -c option correctly, or is there a bug? thanks for your help. regards, -- Jephté Clain Direction des Systèmes d'Information et des Usages Numériques - 2IG Tél. 0262 93 86 31 Fax. 0262 93 81 06

1 1

Date format
by Frans Lanting - IT Admin 18 Apr '14

18 Apr '14

Hi Folks, This refers to the OpenLDAP found in OS X Server, which Apple calls Open Directory. I'm trying to determine the time when an OpenLDAP replica got its last update from the OpenLDAP master, so on a replica I do the following: % sudo slapconfig -getreplicaconfig Replica LDAP server Updated: 2014-04-18 22:29:01 +0000 List Of Replicas od-example.com - OK My question is the date/time format as seen above, since it does not appear to be GMT/UTC or the server time, so any clarification on this would be most appreciated! I don't see any reference to this slapconfig man page or in Apple server documentation. Thanks in advance, Dan

2 1

attribute for storing SSH RSA host keys
by ML mail 16 Apr '14

16 Apr '14

Hello, On my already existing OpenLDAP server I would like to add an attribute in order to store SSH RSA host keys. Currently there are no such attributes (for example: sshRSAHostKey) in any standard schemas. What would be the best strategy to add this attribute to my OpenLDAP server? Create a new objectClass? or simply add it to another already standard objectClass such as the NIS schema? Regards ML

4 6

Re: OpenLDAP Metadirectory
by Thomas Stegbauer 16 Apr '14

16 Apr '14

Hi, i have in my company two ActiveDirectories. as i have an application which has only the possiblity to query one LDAP-server for authentication i thought about a metadirectory as described here: http://ltb-project.org/wiki/documentation/general/sasl_delegation and here https://www.memolinux.info/doku.php?id=unix:ldap:openldapads&s=meta#backend… so i started with openldap 2.4.31 from debian 7.4. my starting configuration looks like below: what i was missing from the docu, i need a schema, where sAMAccountName, proxyAddresses and so on is defined. so i created the msad.schema as described here: http://serverfault.com/questions/151688/configuring-openldap-as-a-active-di… now i don't get an error when i startup slapd. but when i do an search to the metadirectory for example: "ldapsearch -x -D cn=manager,dc=meta -b dc=meta uid=testuser", i see in the wireshark -the bindreques -the searchrequest within DC=D6200,DC=comp,DC=com -but the search criteria looks like this: (!(objectclass=*)) not (objectclass=*) which finds nothing. and gives me 0 results. also i found: http://www.openldap.org/lists/openldap-technical/201206/msg00168.html But what here unclear, what schema definitions do i need with this? could someone point me to my error, as i am nearly blind for comparing. Thomas slapd.conf ========== # Schema and objectClass definitions include /etc/ldap/schema/core.schema include /etc/ldap/schema/cosine.schema include /etc/ldap/schema/nis.schema include /etc/ldap/schema/inetorgperson.schema include /etc/ldap/schema/misc.schema include /etc/ldap/schema/msad.schema pidfile /var/run/slapd/slapd.pid loglevel 99 # Where the dynamically loaded modules are stored modulepath /usr/lib/ldap moduleload back_hdb moduleload back_ldap moduleload back_meta moduleload rwm access to * by * read # Database database meta suffix "dc=meta" rootdn "cn=Manager,dc=meta" rootpw secret # LDAP 1 uri "ldap://192.168.0.2:3268/ou=vzp,dc=meta" lastmod off suffixmassage "ou=vzp,dc=meta" "DC=D6200,DC=comp,DC=com" idassert-bind bindmethod=simple binddn="CN=Meta,CN=Users,DC=D6200,DC=comp,DC=com" credentials="secret" mode=none flags=non-prescriptive idassert-authzFrom "dn.exact:cn=Manager,dc=meta" overlay rwm rwm-map objectclass account user rwm-map attribute mail proxyAddresses rwm-map attribute uid sAMAccountName rwm-map attribute cn name rwm-map attribute * # LDAP 2 uri ldap:// 192.168.13.2 :3268/ou=azp,dc=meta lastmod off suffixmassage "ou=azp,dc=meta" "DC=d5820,DC=muc,DC=com" idassert-bind bindmethod=simple binddn="CN=Meta,CN=Users,DC=d5820,DC=muc,DC=com" credentials="secret" mode=none flags=non-prescriptive idassert-authzFrom "dn.exact:cn=Manager,dc=meta" overlay rwm rwm-map objectclass account user rwm-map attribute mail proxyAddresses rwm-map attribute uid sAMAccountName rwm-map attribute cn name rwm-map attribute *

1 0

response controls
by Huub Sepers 15 Apr '14

15 Apr '14

Hi, We use openLdap as our user identity store for our SSO solution which is openAM. We want to implement a password expiration strategy. Therefore we have to configure openLdap to return a signal for events like: - password about to expire - password expired - .... The openAM code (java) anticipates "controls" for this purpose. Questions: - How to configure openLdap to return a control when a password is about to expire. - Which java Ldap api should be used to process such a control. Greetings, Huub

3 2

Checking client certificates against CRLs
by David Arroyo 14 Apr '14

14 Apr '14

This question may be better asked in the NSS mailing list. Feel free to let me know if that is the case. I'm building a service based around OpenLDAP and SASL EXTERNAL authentication using client certificates. One of requirements is that we have the ability to revoke client certificates. I've found that the only way to revoke a client certificate using an NSS-linked OpenLDAP (RHEL's default 2.4.23) is to: - Revoke the certificate - Import the CRL into the db referenced by olcTLSCACertificatePath - restart slapd Is there a way to update the CRL without restarting slapd? And is there any way to make slapd request the URL referenced in the client cert's nsCaRevocationUrl attribute? If the answer to this is "use OpenSSL", that's a fine answer. Regards, David

4 6

CRL with OpenSSL
by manu＠netbsd.org 14 Apr '14

14 Apr '14

Hi A cautious handling of heatbleed included renewing private keys and certificates. But that is of no interest if the possibly compromised certificate is not revoked, or if revokation is not enforced. I therefore tried CRL in OpenLDAP (linked with OpenSSL). I first started with client settings, in ~/.ldaprc: BASE dc=example,dc=net URI ldaps://ldap.example.net TLS_CACERT /etc/openssl/certs/ca.crt TLS_REQCERT demand TLS_CACERTDIR /home/manu/openssl/ca TLS_CRLCHECK all As suggested in the man page, I added a copy of /etc/openssl/certs/ca.crt in /home/manu/openssl/ca and tried a ldapsearch on the server. It fails, and with debug output I have: TLS certificate verification: Error, unable to get certificate CRL TLS trace: SSL3 alert write:fatal:unknown CA TLS trace: SSL_connect:error in SSLv3 read server certificate B TLS trace: SSL_connect:error in SSLv3 read server certificate B TLS: can't connect: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed (unable to get certificate CRL). ldap_err2string ldap_sasl_bind(SIMPLE): Can't contact LDAP server (-1) kernel trace show that before the error message, it attemps to open /home/manu/openssl/ca/0726b466.r0 If I rename the CA to that name, it will read it, then fail on: TLS certificate verification: Error, unable to get certificate CRL TLS trace: SSL3 alert write:fatal:unknown CA TLS trace: SSL_connect:error in SSLv3 read server certificate B TLS trace: SSL_connect:error in SSLv3 read server certificate B TLS: can't connect: error:0906D06C:PEM routines:PEM_read_bio:no start line. That suggests the man page is wrong and it is not expecting a CA there. If I remove the CA from /home/manu/openssl/ca/ and copy the CRL in /home/manu/openssl/ca/0726b466.r0, it reads it without a complain, then tries to read /home/manu/openssl/ca/0726b466.r1 and fail there. If I copy /home/manu/openssl/ca/0726b466.r0 to /home/manu/openssl/ca/0726b466.r1, the message suggests that it is indeed trying to load the CRL from that file: TLS: can't connect: error:0B07D065:x509 certificate routines:X509_STORE_add_crl:cert already in hash table. I have a few questions before I start to read the code, just in case it is a known issue: Why the cryptic file names? And why do I need a second 0726b466.r1 file? Using TLS_CRLCHECK peer instead of TLS_CRLCHECK all does not change the behavior. And is OpenSSL CRL supposed to work? This is OpenLDAP 2.4.33 -- Emmanuel Dreyfus http://hcpnet.free.fr/pubz manu(a)netbsd.org

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