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Re: LDAP/Kerberos/GSSAPI Error:Hostname cannot be canonicalized
On Tue, 1 Jul 2008 14:01:13 +0200 (CEST)
> Hi list,
> I am trying to setup a LDAP-Server with SASL and Kerberos-authentication via
> GSSAPI. The Systems are running debian etch unsing the heimdal-implementation.
> As far as I see, most things (ldap, sasl, kerberos) seem to be set up and
> running but there is some kind misconfiguration: When I try to access the
> ldap-sever (having received a kerberos-ticket by "kinit fmayer" previously) I
> get an error-message:
> (a little bit anonymized)
> > fmayer@client:~$ klist
> > Credentials cache: FILE:/tmp/krb5cc_1002
> > Principal: fmayer@TESTREALM.LOCAL
> > Issued Expires Principal
> > Jul 1 11:36:15 Jul 1 21:48:25 krbtgt/TESTREALM.LOCAL@TESTREALM.LOCAL
> > fmayer@client:~$ ldapsearch
> > SASL/GSSAPI authentication started
> > ldap_sasl_interactive_bind_s: Local error (-2)
> > additional info: SASL(-1): generic failure: GSSAPI Error: An invalid
> name was supplied
> > (Hostname cannot be canonicalized)
> I believe, that this is a kerberos-misconfiguation, since LDAP worked fine with
> the SASLMech EXTERNAL.
> Both, machines as well as the ldap-service, do have a principal-entry in the
> kerberos-database and the names of the machines are being found in via the DNS.
> Currently a little bit puzzeled, what is going wrong, when (certainly) the
> server complains, that a "Hostname cannot be canonicalized". Searching with
> google with these keywords does not lead to anything useful.
> Could anyone give me a hint, what is possibly going wrong in the configuration?
> Of course I could have added some more debug-information from either the
> log-file and/or by using the "-d"-switch - but I do not want to spam the list,
> especially not in the first posting :)
What do you get from:
$ hostname -f
Michael B Allen
PHP Active Directory SPNEGO SSO