[Icinga-devel] Icingaweb2 LDAP "Critical extension is unavailable"

Eric Lippmann Eric.Lippmann at netways.de
Fri Feb 20 11:11:00 CET 2015

Hi Makus,

On 18 Feb 2015, at 08:44, Markus Bettsteller <markus at bettsteller.de<mailto:markus at bettsteller.de>> wrote:

I have an issue with the LDAP authentication and IcingaWeb2 (IcingaWeb1
is working fine, just the version"2" is giving me trouble). There is a
LDAP directory used here that seems to have an extension missing that is
being used by the icingaweb2 code. Any pointers on what extension is
missing is very welcome, so I can request it at the hosters servcice desk.

Error message:
Feb 18 07:59:20 XXXXXXXXXXXX icingaweb2[14306]:
Icinga\Exception\AuthenticationException in
with message: Authentication against backend "XX" not possible. <-
Icinga\Exception\AuthenticationException in
with message: Connection not possible. <- Icinga\Protocol\Ldap\Exception
in /var/www/icingaweb2/library/Icinga/Protocol/Ldap/Connection.php:378
with message: LDAP query "(objectClass=inetorgperson)" (root
dc=XXXXXXXXXXXXXXXX,dc=XXX) failed: Critical extension is unavailable

Thanks for the report. It’s a bug in our framework. I opened the following issue: https://dev.icinga.org/issues/8490.
We’ll fix this one asap.


Eric Lippmann
Application Developer

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