[Freeipa-users] Additional pre-authentication required, Ticket Wrong ?

Sumit Bose sbose at redhat.com
Tue Mar 31 09:09:43 UTC 2015


On Tue, Mar 31, 2015 at 11:02:24AM +0200, Matt . wrote:
> On my client I still see:
> 
> 03/31/2015 11:00:08  04/01/2015 11:00:07  krbtgt/DOMAIN.LOCAL at DOMAIN.LOCAL
> 03/31/2015 11:00:09  04/01/2015 11:00:07  HTTP/ldap-01.domain.local at DOMAIN.LOCAL
> 
> Should ldap-01 not be ldap as I go through my loadbalancer ?

I guess not, because your loadbalancer just redirects the traffic and
the authentication is done with ldap-01.

bye,
Sumit

> 
> Do I need to merge keytabs or so ?
> 
> 2015-03-31 7:54 GMT+02:00 Matt . <yamakasi.014 at gmail.com>:
> > Hi,
> >
> > I tried to trace some stuff but this doesn't give me much more info.
> >
> > What I see at the moment in the /var/log/httpd/acces_log is exactly
> > what happens but without the info I need to get a better view:
> >
> > 10.10.0.121 - - [30/Mar/2015:22:22:58 +0200] "POST /ipa/json HTTP/1.1" 301 258
> > 10.10.0.121 - - [30/Mar/2015:22:22:58 +0200] "POST /ipa/json HTTP/1.1"
> > 301 259 "https://ldap.domain.local/ipa/json" "-"
> > 10.10.0.121 - - [30/Mar/2015:22:22:58 +0200] "POST /ipa/json HTTP/1.1" 401 1469
> > 10.10.0.121 - - [30/Mar/2015:22:22:59 +0200] "POST /ipa/json HTTP/1.1" 401 1469
> >
> > 2015-03-30 15:03 GMT+02:00 Sumit Bose <sbose at redhat.com>:
> >> On Mon, Mar 30, 2015 at 04:56:11AM +0200, Matt . wrote:
> >>> Hi,
> >>>
> >>> I just tot home and typing from my cell so i'm suite short in words
> >>>
> >>> Create keytab for ldap-01.domain
> >>> Kinit with that to ldap.domain
> >>> Curl against ldap.domain
> >>> Get a 301 which I manage from curl (goes well)
> >>> Get kerberos ticket error
> >>>
> >>> now I don't kinit anymore so re-use my existing ticket and curl against
> >>> ldap-01.domain and I'm accepted and can execute stuff.
> >>>
> >>> My ssl is OK, ticket also it seems.
> >>
> >> Maybe the output of
> >>
> >> KRB5_TRACE=/dev/sdtout curl -v ....
> >>
> >> might help to see what is going on?
> >>
> >> bye,
> >> Sumit
> >>
> >>>
> >>> Thanks M.
> >>> Op 30 mrt. 2015 03:50 schreef "Dmitri Pal" <dpal at redhat.com>:
> >>>
> >>> > On 03/29/2015 04:47 AM, Matt . wrote:
> >>> >
> >>> >> Hi Guys,
> >>> >>
> >>> >> Now my Certification issues are solved for using a loadbalancer in
> >>> >> front of my ipa servers I get the following:
> >>> >>
> >>> >> Unable to verify your Kerberos credentials
> >>> >>
> >>> >> and in my logs:
> >>> >>
> >>> >> Additional pre-authentication required.
> >>> >>
> >>> >> This happens when I connect throught my loadbalancers, I see my server
> >>> >> coming ni with the right IP.
> >>> >>
> >>> >> When I access my ipa server directly, not using the loadbalancer IP
> >>> >> between it, my kerberos Ticket is valid.
> >>> >>
> >>> >> I get the feeling that when I use my loadbalancers and because of that
> >>> >> I get a 301 redirect it needs a preauth. I see some issues on
> >>> >> mailinglists but it doesn't fit my situation.
> >>> >>
> >>> >> Why wants it the preauth when I already have a valid ticket and my
> >>> >> redirect is followed by CURL and posted the right way ?
> >>> >>
> >>> >
> >>> > Can you describe the sequence?
> >>> > What do you do?
> >>> >
> >>> > From the client you try IPA CLI and this is where you see the problem even
> >>> > with the valid ticket or is the flow different?
> >>> >
> >>> >  I hope someone has an idea.
> >>> >>
> >>> >> Thanks,
> >>> >>
> >>> >> Matt
> >>> >>
> >>> >>
> >>> >
> >>> > --
> >>> > Thank you,
> >>> > Dmitri Pal
> >>> >
> >>> > Sr. Engineering Manager IdM portfolio
> >>> > Red Hat, Inc.
> >>> >
> >>> > --
> >>> > Manage your subscription for the Freeipa-users mailing list:
> >>> > https://www.redhat.com/mailman/listinfo/freeipa-users
> >>> > Go to http://freeipa.org for more info on the project
> >>> >
> >>
> >>> --
> >>> Manage your subscription for the Freeipa-users mailing list:
> >>> https://www.redhat.com/mailman/listinfo/freeipa-users
> >>> Go to http://freeipa.org for more info on the project
> >>




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