[Freeipa-users] Migration mode

Jitse Klomp jitseklomp at gmail.com
Mon Mar 10 20:10:01 UTC 2014


On 10-03-14 20:34, Sumit Bose wrote:
> On Mon, Mar 10, 2014 at 07:56:07PM +0100, Jitse Klomp wrote:
>> On 10-03-14 18:57, Sumit Bose wrote:
>>> On Mon, Mar 10, 2014 at 05:23:59PM +0100, Jitse Klomp wrote:
>>>> On 10-03-14 17:03, Lukas Slebodnik wrote:
>>>>> On (10/03/14 16:58), Lukas Slebodnik wrote:
>>>>>> On (10/03/14 16:35), Jitse Klomp wrote:
>>>>>>> On 10-03-14 16:10, Lukas Slebodnik wrote:
>>>>>>>> On (10/03/14 15:19), Jitse Klomp wrote:
>>>>>>>>> On 10-03-14 14:59, Jitse Klomp wrote:
>>>>>>>>>> On 10-03-14 14:35, Lukas Slebodnik wrote:
>>>>>>>>>>> On (10/03/14 13:55), Jitse Klomp wrote:
>>>>>>>>>>>> Hello all,
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> I'm migrating our OpenLDAP-based IdM-system to IPA. Instead of using
>>>>>>>>>>>> migrate-ds I used some custom scripts to import all of our users (~250)
>>>>>>>>>>>> and groups (~85) with IPA commands (ipa user-add etc.). To move
>>>>>>>>>>>> passwords I configured the ipa-server to run in migration mode and did
>>>>>>>>>>>> an ldapmodify like this:
>>>>>>>>>>>>
>>>>>>>>>>>>     dn: uid=jitse,cn=users,cn=accounts,dc=domain,dc=nl
>>>>>>>>>>>>     changetype: modify
>>>>>>>>>>>>     replace: userPassword
>>>>>>>>>>>>     userPassword: {SHA}hash
>>>>>>>>>>>>
>>>>>>>>>>>> Logging in to a machine running CentOS and ipa-client for the first time
>>>>>>>>>>>> works like a charm, a krbPrincipalKey is generated and Kerberos 'just'
>>>>>>>>>>>> works. However, logging in to Fedora 20 for the first time throws a
>>>>>>>>>>>> 'permission denied'. Logging in to Fedora works after logging in to
>>>>>>>>>>>> CentOS or the IPA migration web ui.
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> sssd_domain.nl.log, loglevel 6
>>>>>>>>>>>> Fedora log: http://pastebin.centos.org/8281/
>>>>>>>>>>>> CentOS log: http://pastebin.centos.org/8286/
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> Additional details:
>>>>>>>>>>>> IPA server: CentOS 6.5, ipa-server-3.0.0-37.el6.x86_64
>>>>>>>>>>>> Client 1: CentOS 6.5, ipa-client-3.0.0-37.el6.x86_64
>>>>>>>>>>>> Client 2: Fedora 20, freeipa-client-3.3.3-4.fc20.x86_64
>>>>>>>>>>> (Mon Mar  3 22:15:42 2014) [sssd[be[domain.nl]]] [ipa_resolve_callback]
>>>>>>>>>>>      (0x0400): Constructed uri 'ldap://vm-ipa.domain.nl'
>>>>>>>>>>> (Mon Mar  3 22:15:42 2014) [sssd[be[domain.nl]]] [write_pipe_handler]
>>>>>>>>>>>      (0x0400): All data has been sent!
>>>>>>>>>>> (Mon Mar  3 22:15:43 2014) [sssd[be[domain.nl]]] [read_pipe_handler]
>>>>>>>>>>>      (0x0400): EOF received, client finished
>>>>>>>>>>> (Mon Mar  3 22:15:43 2014) [sssd[be[domain.nl]]]
>>>>>>>>>>> [be_pam_handler_callback]
>>>>>>>>>>>      (0x0100): Backend returned: (0, 4, <NULL>) [Success]
>>>>>>>>>>>                                     ^^^
>>>>>>>>>>>                                    It means  PAM_SYSTEM_ERR /* System
>>>>>>>>>>> error */
>>>>>>>>>>>
>>>>>>>>>>> (Mon Mar  3 22:15:43 2014) [sssd[be[domain.nl]]]
>>>>>>>>>>> [be_pam_handler_callback]
>>>>>>>>>>>      (0x0100): Sending result [4][domain.nl]
>>>>>>>>>>> (Mon Mar  3 22:15:43 2014) [sssd[be[domain.nl]]]
>>>>>>>>>>> [be_pam_handler_callback]
>>>>>>>>>>>      (0x0100): Sent result [4][domain.nl]
>>>>>>>>>>> (Mon Mar  3 22:15:43 2014) [sssd[be[domain.nl]]] [child_sig_handler]
>>>>>>>>>>>      (0x0100): child [19510] finished successfully.
>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> Both CentOS and Fedora are fully up-to-date using only the base
>>>>>>>>>>>> repos. Config of the clients is done with ipa-client-install.
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> Could you attach log files with debug_level 9?
>>>>>>>>>>>
>>>>>>>>>>> LS
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Sure. Just sssd_domain or do you need more?
>>>>>>>>>>
>>>>>>>> Are you using two different ipa servers?
>>>>>>>> ldap://vm-ipa.domain.nl, ldap://vm-ipa.a-eskwadraat.nl
>>>>>>>>
>>>>>>>>>> sssd_domain.nl.log, loglevel 9
>>>>>>>>>> Fedora: http://pastebin.centos.org/8291/
>>>>>>>> Constructed uri 'ldap://vm-ipa.domain.nl'
>>>>>>>>
>>>>>>>>>> CentOS: http://pastebin.centos.org/8296/
>>>>>>>> Constructed uri 'ldap://vm-ipa.a-eskwadraat.nl'
>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>   - Jitse
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>> The problem is also present in RHEL7b with
>>>>>>>>> ipa-client-3.3.3-5.el7.x86_64 and sssd-1.11.2-1.el7.x86_64
>>>>>>>>>
>>>>>>>>> sssd_domain.nl.log, loglevel 9
>>>>>>>>> RHEL7b: http://pastebin.centos.org/8301/
>>>>>>>> Constructed uri 'ldap://vm-ipa.domain.nl'
>>>>>>>>
>>>>>>>> Could you also provide krb5_child.log and ldap_child.log from fedora machine?
>>>>>>>>      (debug_level 9)
>>>>>>>>
>>>>>>>> LS
>>>>>>>>
>>>>>>>
>>>>>>> No, I'm using only one ipa server (vm-ipa). I accidentally
>>>>>>> copy-pasted without changing the domain name ;)
>>>>>>>
>>>>>>>> Any chance you could use the migrate-ds script to migrate users? I'm
>>>>>>>> not 100% sure if your own upgrade method does the same thing..
>>>>>>> I don't think so, our old LDAP schema is a mess...
>>>>>>>
>>>>>>> krb5_child.log: http://pastebin.centos.org/8306/
>>>>>>
>>>>>> [sss_child_krb5_trace_cb] (0x4000): [24671]
>>>>>>     1394465217.407384: Getting initial credentials for jitse at DOMAIN.NL
>>>>>> [sss_child_krb5_trace_cb] (0x4000): [24671]
>>>>>>     1394465217.407699: Sending request (173 bytes) to DOMAIN.NL
>>>>>> [sss_child_krb5_trace_cb] (0x4000): [24671]
>>>>>>     1394465217.408202: Sending initial UDP request to dgram 10.14.3.15:88
>>>>>> [sss_child_krb5_trace_cb] (0x4000): [24671]
>>>>>>     1394465217.425034: Received answer from dgram 10.14.3.15:88
>>>>>> [sss_child_krb5_trace_cb] (0x4000): [24671]
>>>>>>     1394465217.425171: Response was from master KDC
>>>>>> [sss_child_krb5_trace_cb] (0x4000): [24671]
>>>>>>     1394465217.425241: Received error from KDC: -1765328361/Password has expired
>>>>>> [get_and_save_tgt] (0x0020): 918: [-1765328361][Password has expired]
>>>>>> [tgt_req_child] (0x1000): Password was expired
>>>>>>
>>>>>> It looks like password is expired for user jitse.
>>>>>>
>>>>> My hands were faster than my mind.
>>>>>
>>>>> I wanted to wrote:
>>>>> It looks like password is expired for user jitse.
>>>>> It is really weird because it works on Centos.
>>>>> Do you have a synchronized time on all machines with ipa server?
>>>>>
>>>>> LS
>>>>
>>>> Yes, time is in sync across all machines. I think the most
>>>> interesting lines in the log are these:
>>>>
>>>> (Mon Mar 10 16:26:57 2014) [[sssd[krb5_child[24671]]]]
>>>> [sss_child_krb5_trace_cb] (0x4000): [24671] 1394465217.441823:
>>>> Processing preauth types: 136, 19, 2, 133
>>>>
>>>> (Mon Mar 10 16:26:57 2014) [[sssd[krb5_child[24671]]]]
>>>> [map_krb5_error] (0x0020): 979: [-1765328234][Program lacks support
>>>> for encryption type]
>>>>
>>>> (Mon Mar 10 16:26:57 2014) [[sssd[krb5_child[24671]]]]
>>>> [pack_response_packet] (0x2000): response packet size: [4]
>>>>
>>>> (Mon Mar 10 16:26:57 2014) [[sssd[krb5_child[24671]]]]
>>>> [k5c_send_data] (0x4000): Response sent.
>>>>
>>>> (Mon Mar 10 16:26:57 2014) [[sssd[krb5_child[24671]]]] [main]
>>>> (0x0400): krb5_child completed successfully
>>>>
>>>> This is where krb5_child on fedora just stops working while
>>>> krb5_child on CentOS does this: http://pastebin.centos.org/8316/
>>>>
>>>
>>> Can you send the krb5_child.log file with the success from CentOS as
>>> well? Looks like we might handle some error codes differently after
>>> introducing the sssd_errors code.
>>>
>>> bye,
>>> Sumit
>>>
>>>>
>>>>   - Jitse
>>
>> That last pastebin (http://pastebin.centos.org/8316/) was
>> krb5_child.log from a succesful first-time login on centos.
>
> Thanks. Can you try to set 'allow_weak_crypto = true' in the libdefaults
> section of krb5.conf on F20 or RHEL7?
>
> bye,
> Sumit
>
>>
>>> I'd be curious what the krbPasswordExpiration is for this user.
>> See http://pastebin.centos.org/8321/ for a password migration and
>> output of ldapsearch.
>>
>> Output of ldapsearch *after* logging in to CentOS for the first time:
>>      krbPasswordExpiration: 20140310183603Z
>>      krbLastPwdChange: 20140310183603Z
>>      krbExtraData:: AAITBh5Tcm9vdC9hZG1pbkBBLUVTS1dBRFJBQVQuTkwA
>>      krbLastFailedAuth: 20140310185101Z
>>      krbLoginFailedCount: 1
>>
>>   - Jitse

Yes, here you go: http://pastebin.centos.org/8331/

It doesn't seem to be a lot different from the old one...

  - Jitse




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