Fwd: [Freeipa-users] Problem with Kerberos Authentication

Michael Kang wxiluo at gmail.com
Fri Sep 25 08:09:48 UTC 2009


---------- Forwarded message ----------
From: Michael Kang <wxiluo at gmail.com>
Date: Fri, Sep 25, 2009 at 4:09 PM
Subject: Re: [Freeipa-users] Problem with Kerberos Authentication
To: Jenny Galipeau <jgalipea at redhat.com>


Dear Jenny Galipeau,

Thank you and Everyone who helped me with this project. Thanks for being
patient and answering my questions :)

My problem was solved by using Fedora 11(upgraded completely). FreeIPA may
have bugs with Fedora 9.

If I install Fedora 11(not upgrade),then install ipa-server, the Apache
crashed many times per seconds. Here is log ouputs:

> *Apache chill pid xxxx exit singal Segmentation fault(11)*
>

After upgrade the whole system, this problem disappeared. Also new user can
pass the Kerberos Authentication and login system successfully.

If you want to get the details about bugs on Fedora 9, I could send it for
you. Please let me know what do you want.

Thank you again.
Michael


On Thu, Sep 24, 2009 at 8:41 PM, Jenny Galipeau <jgalipea at redhat.com> wrote:

> Hi Michael:
>
> Let's rule in or out the delegation you added. Can you remove the
> delegation and try it? If it works, I think we may have a bug. If it behaves
> the same, if you could provide more debug info that would be great.
>
> Thanks
> Jenny
>
> Michael Kang wrote:
>
>> Hi David,
>>
>> I reboot the system after I edit the configure file.
>>
>> Regard,
>> Michael
>>
>> On Thu, Sep 24, 2009 at 11:13 AM, David O'Brien <davido at redhat.com<mailto:
>> davido at redhat.com>> wrote:
>>
>>    Michael,
>>    did you restart the kdc after you updated the krb5.conf file?
>>
>>    David
>>
>>    Michael Kang wrote:
>>
>>        According to the FreeIPA Client Configure Guide, I realized I
>>        may miss
>>        something in my client's krb5.conf. It had been created by
>>        ipa-client-install script. I never edit it. But there are *no*
>>        *[realms]* and
>>        *[domain_realm] *in krb5.conf file.
>>
>>        So I added them, show it below:
>>
>>
>>            #File modified by ipa-client-install
>>
>>            [libdefaults]
>>            default_realm = ARAGON.LOCAL
>>            dns_lookup_realm = true
>>            dns_lookup_kdc = true
>>            ticket_lifetime = 24h
>>            forwardable = yes
>>
>>            [realms]
>>            ARAGON.LOCAL = {
>>            kdc = ipa.aragon.local:88
>>            admin_server = ipa.aragon.local:749
>>            default_domain = aragon.local
>>            }
>>
>>            [domain_realm]
>>            .aragon.local = ARAGON.LOCAL
>>            aragon.local = ARAGON.LOCAL
>>
>>            [appdefaults]
>>            pam = {
>>            debug = false
>>            ticket_lifetime = 36000
>>            renew_lifetime = 36000
>>            forwardable = true
>>            krb4_convert = false
>>            }
>>
>>
>>
>>        It doesn't work either by using the new krb5.conf.
>>        *kinit(v5): Password change failed while getting initial
>>        credentials*
>>
>>        I'd like to post more detail outputs. Hope it could be helpful.
>>
>>
>>            [root at freeipa ~]# kinit admin
>>            Password for admin at ARAGON.LOCAL:
>>            [root at freeipa ~]# klist
>>            Ticket cache: FILE:/tmp/krb5cc_0
>>            Default principal: admin at ARAGON.LOCAL
>>
>>            Valid starting Expires Service principal
>>            09/23/09 22:52:57 09/24/09 22:52:58
>>            krbtgt/ARAGON.LOCAL at ARAGON.LOCAL
>>
>>
>>            Kerberos 4 ticket cache: /tmp/tkt0
>>            klist: You have no tickets cached
>>            [root at freeipa ~]# ipa-finduser admin
>>            Full Name: Administrator
>>            Home Directory: /home/admin
>>            Login Shell: /bin/bash
>>            Login: admin
>>
>>            [root at freeipa ~]# ipa-finduser haha
>>            Full Name: haha haha
>>            Home Directory: /home/haha
>>            Login Shell: /bin/sh
>>            Login: haha
>>
>>
>>
>>        Regards,
>>        Michael
>>
>>        On Thu, Sep 24, 2009 at 10:27 AM, Michael Kang
>>        <wxiluo at gmail.com <mailto:wxiluo at gmail.com>> wrote:
>>
>>
>>            Here is client's krb5.conf:
>>
>>            #File modified by ipa-client-install
>>
>>                [libdefaults]
>>                default_realm = ARAGON.LOCAL
>>                dns_lookup_realm = true
>>                dns_lookup_kdc = true
>>                ticket_lifetime = 24h
>>                forwardable = yes
>>
>>                [appdefaults]
>>                pam = {
>>                debug = false
>>                ticket_lifetime = 36000
>>                renew_lifetime = 36000
>>                forwardable = true
>>                krb4_convert = false
>>                }
>>
>>
>>            EOF
>>
>>
>>            On Wed, Sep 23, 2009 at 8:45 PM, Jenny Galipeau
>>            <jgalipea at redhat.com <mailto:jgalipea at redhat.com>>wrote:
>>
>>
>>
>>                Michael Kang wrote:
>>
>>
>>                    Dear FreeIPA community,
>>
>>                    I did try set the new user's initial password. But
>>                    it didn't work either.
>>                    I got a protocol error.
>>
>>                    Here is the output of console :
>>
>>                    [root at freeipa ~]# kinit admin
>>                    Password for admin at ARAGON.LOCAL:
>>                    [root at freeipa ~]# ipa-passwd haha
>>                    Changing password for haha at ARAGON.LOCAL
>>                    New Password:
>>                    Confirm Password:
>>                    [root at freeipa ~]# kinit haha
>>                    Password for haha at ARAGON.LOCAL:
>>                    Password expired. You must change it now.
>>                    Enter new password:
>>                    Enter it again:
>>                    kinit(v5): Requested protocol version not
>>                    supported while getting
>>                    initial credentials
>>
>>
>>
>>                Sounds like, a Kerberos V4 request was sent to the
>>                KDC? What's in the
>>                client's krb5.conf?
>>                Jenny
>>
>>
>>                    On Tue, Sep 22, 2009 at 9:22 PM, Jenny Galipeau
>>                    <jgalipea at redhat.com
>>                    <mailto:jgalipea at redhat.com><mailto:
>>
>>                    jgalipea at redhat.com <mailto:jgalipea at redhat.com>>>
>>                    wrote:
>>
>>                    Jenny Galipeau wrote:
>>
>>
>>                    Michael Kang wrote:
>>
>>                    Dear FreeIPA community,
>>
>>                    I successfully installed FreeIPA this morning. Now
>>                    I got a
>>                    problem about Kerberos Authentication. New user cannot
>>                    modify their password in shell.
>>
>>                    Hi Michael:
>>                    Did you set the new user's initial password?
>>                    kinit admin
>>                    ipa passwd haha
>>                    Thanks
>>                    Jenny
>>
>>                    Also kinit as haha, because haha will be asked to
>>                    change the
>>                    password on first authentication.
>>
>>                    Thanks
>>                    Jenny
>>
>>
>>                    I added a new user named /haha(group: ipauser)/
>>                    based on
>>                    the webUI. This user is not a existed system user.
>>                    Then I
>>                    added a new Delegations(allow people in group
>>                    ipauser can
>>                    modify password for group ipauser) .
>>
>>                    /[michael at freeipa Desktop]$ su - haha/
>>                    /Password: /
>>
>>                    /Warning: Your password will expire in less than
>>                    one hour./
>>                    /Warning: password has expired./
>>                    /Kerberos 5 Password: /
>>                    /Warning: Your password will expire in less than
>>                    one hour./
>>                    /New UNIX password: /
>>                    /Retype new UNIX password: /
>>                    /su: incorrect password/
>>                    /[michael at freeipa Desktop]$ su - root/
>>                    /Password: /
>>                    /[root at freeipa ~]# su - haha/
>>                    /su: warning: cannot change directory to
>>                    /home/haha: No
>>                    such file
>>                    or directory/
>>                    /-sh-3.2$ /
>>
>>
>>                    Root can su - haha successfully. I think that
>>                    means the
>>                    Kerberos works, but new user cannot reset their
>>                    password
>>                    in their shell.
>>
>>                    What should I do?
>>
>>                    Best Regards,
>>                    Michael
>>
>>                    -- Michael Kang(康上明学)
>>                    There is a giant asleep within every man. When the
>>                    giant
>>                    awakens,miracles happen.
>>
>>                    Personal blog: http://ufusion.org - United Fusion
>>
>>
>>  ------------------------------------------------------------------------
>>
>>                    _______________________________________________
>>                    Freeipa-users mailing list
>>                    Freeipa-users at redhat.com
>>                    <mailto:Freeipa-users at redhat.com>
>>                    <mailto:Freeipa-users at redhat.com
>>                    <mailto:Freeipa-users at redhat.com>>
>>                    https://www.redhat.com/mailman/listinfo/freeipa-users
>>
>>
>>
>>
>>
>>                    -- Jenny Galipeau <jgalipea at redhat.com
>>                    <mailto:jgalipea at redhat.com>
>>                    <mailto:jgalipea at redhat.com
>>                    <mailto:jgalipea at redhat.com>
>>                    Principal Software QA Engineer
>>                    Red Hat, Inc. Security Engineering
>>
>>
>>
>>
>>                    --
>>                    Michael Kang(康上明学)
>>                    There is a giant asleep within every man. When the
>>                    giant awakens,miracles
>>                    happen.
>>
>>                    Personal blog: http://ufusion.org - United Fusion
>>
>>
>>                --
>>                Jenny Galipeau <jgalipea at redhat.com
>>                <mailto:jgalipea at redhat.com>>
>>                Principal Software QA Engineer
>>                Red Hat, Inc. Security Engineering
>>
>>
>>
>>            --
>>            Michael Kang(康上明学)
>>            There is a giant asleep within every man. When the giant
>>            awakens,miracles
>>            happen.
>>
>>            Personal blog: http://ufusion.org - United Fusion
>>
>>
>>
>>
>>
>>
>>  ------------------------------------------------------------------------
>>
>>        _______________________________________________
>>        Freeipa-users mailing list
>>        Freeipa-users at redhat.com <mailto:Freeipa-users at redhat.com>
>>        https://www.redhat.com/mailman/listinfo/freeipa-users
>>
>>
>>
>>    --
>>    David O'Brien
>>    IPA Content Author
>>    Red Hat Asia Pacific
>>    +61 7 3514 8189
>>
>>    "The most valuable of all talents is that of never using two words
>>    when
>>    one will do."
>>    Thomas Jefferson
>>
>>
>>
>>
>> --
>> Michael Kang(康上明学)
>> There is a giant asleep within every man. When the giant awakens,miracles
>> happen.
>>
>> Personal blog: http://ufusion.org - United Fusion
>>
>
>
> --
> Jenny Galipeau <jgalipea at redhat.com>
> Principal Software QA Engineer
> Red Hat, Inc. Security Engineering
>
>


-- 
Michael Kang(康上明学)
There is a giant asleep within every man. When the giant awakens,miracles
happen.

Personal blog: http://ufusion.org - United Fusion



-- 
Michael Kang(康上明学)
There is a giant asleep within every man. When the giant awakens,miracles
happen.

Personal blog: http://ufusion.org - United Fusion
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