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Re: LDAP Client & Server with Kerberos

 ldapsearch with debugging enabled and see what it's doing :-

[root@localhost tools]# ./ldapsearch -Y GSSAPI  -d  1
ldap_sasl_interactive_bind_s: user selected: GSSAPI
ldap_int_sasl_bind: GSSAPI
ldap_new_connection 1 1 0
ldap_connect_to_host: TCP
ldap_new_socket: 3
ldap_prepare_socket: 3
ldap_connect_to_host: Trying
ldap_connect_timeout: fd: 3 tm: -1 async: 0
ldap_int_sasl_open: host=localhost.localdomain
ldap_sasl_interactive_bind_s: Unknown authentication method (-6)
        additional info: SASL(-4): no mechanism available: No worthy mechs found

It seems that LDAP server has not  GSSAPI available.

So how can we add GSSAPI  support in LDAP server for making it work??


----- Original Message ----
From: Buchan Milne <bgmilne@staff.telkomsa.net>
To: openldap-software@openldap.org
Cc: sanjay gupta <sanjay_cs1983@yahoo.com>
Sent: Monday, January 7, 2008 1:29:22 PM
Subject: Re: LDAP Client & Server with Kerberos

On Friday 04 January 2008 16:46:40 sanjay gupta wrote:
> Hello,
> I have done default compilation for openldap-2.3.38 now trying to run ldap
> client (ldapsearch) with Kerberos so that ldap client can use session
> ticket to perform the LDAP lookup on LDAP server.Please let me know what
> required to make ldap client work with kerberos.
> I did not see any option to compile & build openldap lib with kerberos
> support & when I do ldapsearch with -K option it shows error "ldapsearch:
> not compiled with Kerberos support".

$ ldapsearch

(specifically no -x flag, as you want SASL).

should be sufficient, assuming all your configuration is correct, you have a
ticket, and the LDAP server has a keytab for ldap/$hostname, where you are
connecting to '$hostname' (in your ldap.conf, or via -h $hostname).

Of course, some logging output from your LDAP server, and the KDCs the LDAP
server and LDAP clients are configured to use would help.

> Please suggest me the right way to do ldapsearch with kerberos support or
> what client & server command line option required to run it with kerberos.

Without -x, ldapsearch will use SASL. Additionally, ldapsearch will try and do
the most appropriate thing, with a ticket, if your LDAP server has GSSAPI
available (and avertised as one of the supportedSASLMechanisms)


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