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ODSEE - GSSAPI Authentication Against a Kerberos Provider Using 'ldapsearch' Gives Error 'Unknown authentication method' (Doc ID 1981431.1)

Last updated on NOVEMBER 18, 2022

Applies to:

Oracle Directory Server Enterprise Edition - Version to [Release 11gR1]
Information in this document applies to any platform.


On : version while trying to authenticate against a Kerberos provider using GSSAPI with these documents,

Oracle® Fusion Middleware Administrator's Guide for Oracle Directory Server Enterprise Edition
11g Release 1 (
Part Number E28972-01
5 Directory Server Security Directory Server Machine: Configure the Directory Server to Enable GSSAPI:

and Oracle knowledge article,

"Configuring SASL/GSSAPI Authentication Against a Kerberos Provider in Oracle Directory Server Enterprise Edition (Doc ID 1364537.1)"

Running ldapsearch returns the following error:

# cd /ldap/dsrk/bin
# date ; ./ldapsearch -v -p <LDAP_PORT> -o mech=GSSAPI -o authzid="<kerberos-test>@<DOMAIN_NAME>" -h localhost -b dc=<SUFFIX_DN> uid=<kerberos-test> dn
jue feb 12 16:52:39 EST 2015
bin_ldapsearch: started Thu Feb 12 16:52:39 2015

ldap_init( localhost, 389 )
ldap_sasl_interactive_bind_s: Unknown authentication method

Oracle Directory Server access log just shows the following,

[12/Feb/2015:16:52:39 -0500] <.....> op=-1 msgId=-1 - fd=18 slot=18 LDAP connection from <IP> to <IP>
[12/Feb/2015:16:52:39 -0500] <.....> op=0 msgId=1 - UNBIND
[12/Feb/2015:16:52:39 -0500] <.....> op=0 msgId=-1 - closing from <IP> - U1 - Connection closed by unbind client -
[12/Feb/2015:16:52:40 -0500] <.....> op=-1 msgId=-1 - closed.

# uname -a
Linux <hostname> 2.6.32-494.el6.x86_64 #1 SMP Tue Jul 29 02:00:14 EDT 2014 x86_64 x86_64 x86_64 GNU/Linux


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