Hi @all

thanks for your help, I solved the problem. So There where two things which causes this problem:

* Thanks to Dameon: Java clients can't handle Multi-Domain Certificates: So the ldap1.spsc.tugraz.at was a alias on servXXX..... and the Java client was not able to handle this.

* Java clients can't handle new cipher suites. If the server provides a cipher suite which the Java client doesn't know, it will not ask again for another version of the cipher, it simply cuts the connection.

So Thanks for your help after hours of debugging I came on this. Regadrs Andreas

On 06/30/2015 01:17 PM, Dameon Wagner wrote:

On Tue, Jun 30 2015 at 12:48:22 +0200, Andreas Laesser scribbled in "Problems with openLDAP + GSSAPI + JAVA":

...

Hi @all

I have a (maybe) a problem with my openldap server authenticating over a JAVA tool (Apache Directory Studio LDAP Browser V2.0.0.v20130628, jXplorer) via GSSAPI.

When I do a ldapsearch from command line via GSSAPI it works fine...

~ % klist Ticket cache: FILE:/tmp/krb5cc_1086_lR4Nxxxxrs Default principal: admin@SPSC.TUGRAZ.AT

Valid starting Expires Service principal 30/06/2015 10:54 02/07/2015 10:54 krbtgt/SPSC.TUGRAZ.AT@SPSC.TUGRAZ.AT renew until 10/07/2015 10:54 30/06/2015 10:54 02/07/2015 10:54 ldap/ldap1.spsc.tugraz.at@SPSC.TUGRAZ.AT renew until 10/07/2015 10:54

~ % ldapsearch -H ldaps://ldap1.spsc.tugraz.at -b "dc=SPSC,dc=TUGRAZ,dc=AT"

This works well....

but if I try the same from one of the two tools mentioned above it simply not bind or connects....

Does anybody had the same problems, or knows a solution?

Hi Andreas,

Just as a hunch, what's the subject (or Subject Alternative Names) for the SSL certificate on "ldap1.spsc.tugraz.at"? If you're using DNS round-robin I'm guessing that "ldap1.spsc.tugraz.at" may not be listed, and that JAVA is being picky about validating the server-side certificate.

Just a thought.

Cheers.

Dameon.

Le 30/06/2015 15:59, Dieter Klünter a écrit :

Am Tue, 30 Jun 2015 12:48:22 +0200 schrieb Andreas Laesser andreas.laesser@tugraz.at:

...

Hi @all

I have a (maybe) a problem with my openldap server authenticating over a JAVA tool (Apache Directory Studio LDAP Browser V2.0.0.v20130628, jXplorer) via GSSAPI.

When I do a ldapsearch from command line via GSSAPI it works fine...

~ % klist Ticket cache: FILE:/tmp/krb5cc_1086_lR4Nxxxxrs Default principal: admin@SPSC.TUGRAZ.AT

Valid starting Expires Service principal 30/06/2015 10:54 02/07/2015 10:54 krbtgt/SPSC.TUGRAZ.AT@SPSC.TUGRAZ.AT renew until 10/07/2015 10:54 30/06/2015 10:54 02/07/2015 10:54 ldap/ldap1.spsc.tugraz.at@SPSC.TUGRAZ.AT renew until 10/07/2015 10:54

~ % ldapsearch -H ldaps://ldap1.spsc.tugraz.at -b "dc=SPSC,dc=TUGRAZ,dc=AT"

This works well....

but if I try the same from one of the two tools mentioned above it simply not bind or connects....

Does anybody had the same problems, or knows a solution?

If Kerberos is properly set up, you should use SASL GSSAPI, that is ldapsearch -Y GSSAPI -H ldaps://some.host

If this can help, we wrote a documentation on how use Kerberos with LSC, which is a Java client : http://lsc-project.org/wiki/documentation/howto/kerberos