openldap-technical June 2022

openldap-technical@openldap.org

34 participants
30 discussions

dynlist +memberOf loses casing in memberOf attribute
by Felix Schäfer 07 Jun '22

07 Jun '22

Good evening, We are currently in the process of upgrading our OpenLDAP installation and we have hit a behaviour we can’t explain by perusing the documentation. When using slapo-dynlist to set memberOf attributes the dn of the group the object is a member of gets lowercased. So for example the object that is a member of a group has: === memberOf: ou=kiosk,ou=ags,ou=groups,dc=fsinfo,dc=cs,dc=tu-dortmund,dc=de === Although the group has a dn of: === dn: ou=Kiosk,ou=AGs,ou=groups,dc=fsinfo,dc=cs,dc=tu-dortmund,dc=de === Is this expected behaviour? Is there a setting we overlooked? Is this is a bug in the version shipped with Ubuntu (2.5.6+dfsg-1~exp1ubuntu1.1)? Thank you, Felix

5 21

olcTLSProtocolMin not taking effect
by juan＠quantifind.com 06 Jun '22

06 Jun '22

Hi all - As part of routine security remediation my company asked me to remove the support for older TLS versions from my LDAP server. To this effect I restarted the service after running the following: sudo ldapmodify -Q -Y EXTERNAL -H ldapi:/// -a -f olcTLSProtocolMin.ldif Here is the content of olcTLSProtocolMin.ldif dn: cn=config changetype: modify add: olcTLSProtocolMin olcTLSProtocolMin: 3.3 When I look at the /etc/ldap/slapd.d/cn=config.ldif file I can see the olcTLSProtocolMin: 3.3 entry. however, when I scan the LDAP server using Nessus, the scanner reports older versions of TLS still available. Also if I scan the supported TLS version using nmap it also reports TLS1.0-TLS1.2 If it helps here is the cn=config.ldif file is here dn: cn=config objectClass: olcGlobal cn: config olcArgsFile: /var/run/slapd/slapd.args olcLogLevel: stats sync olcPidFile: /var/run/slapd/slapd.pid olcTLSCACertificateFile: /etc/ssl/certs/cacert.pem olcTLSCertificateFile: /etc/ssl/certs/my_cert.pem olcTLSCertificateKeyFile: /etc/ssl/private/my_slapd_key.pem olcToolThreads: 1 structuralObjectClass: olcGlobal entryUUID: SomeUUID creatorsName: cn=config createTimestamp: 20160311213839Z olcTLSProtocolMin: 3.3 entryCSN: 20220601202658.429433Z#000000#000#000000 modifiersName: gidNumber=0+uidNumber Any help will be greatly appreciated. JRosario

2 4

Re: Antw: [EXT] Re: slow memberOf queries in 2.5 with dynlist overlay
by Paul B. Henson 03 Jun '22

03 Jun '22

On 5/30/2022 11:53 PM, Ulrich Windl wrote: > I wonder: Would forcing a core dump help in that situation, or would a > gprof-compile be helpful? Unfortunately I can't reproduce it; it just happens randomly on my production boxes, less frequently since I increased the amount of memory on them. I'm not sure I could run a debug or profiling build in production for an extended amount of time waiting for it to happen. And with my luck it would be a heisenbug anyway 8-/. > Maybe one could track down the page fault to some code (function) using tools > from the valgrind family (Cachegrind, callgrind, etc.) > http://www.valgrind.org/docs/manual/manual-core-adv.html#manual-core-adv.va…

1 0

OpenLDAP 2.6.2 on RHEL8: add password policy
by Real Villafan, Elizabeth (US 392K) 01 Jun '22

01 Jun '22

Hello, I'm upgrading from openldap 2.4 running on RHEL7 up to 2.6.2 and RHEL8 on new hardware, apparently the way to configure password policy now is by configuring the slapd.conf file rather than loading the ppolicy schema. How do I modify that file properly? I read https://www.openldap.org/doc/admin26/overlays.html#Password%20Policies on section 12.10.2. Password Policy Configuration, what does it mean to "Instantiate the module in the database"? do you have a sample slapd.conf file I can refer to? Thank you, Liz

2 3

2.5 LTS release with OpenSSL 3.0
by barry.greenberg＠oracle.com 01 Jun '22

01 Jun '22

Is there any information about the release of OpenLDAP 2.5.x that includes support for OpenSSL 3.0? I see that it's now supported in 2.6.2 but we'd prefer to stay on the 2.5 branch for the foreseeable future. Thanks.

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openldap-technical June 2022