[Freeipa-users] Question on AD to freeipa sync

[Ondrej Valousek]

Submitted RFEs #743503,#743505,#743505 and #743509 into RedHat bugzilla (I have no login to fedorahosted.org so I could not submit to upstream).
Take them as a wish-list only and feel free to close them if they do not fit into the IPA roadmap.

Thanks!
Ondrej

On 10/04/2011 04:47 PM, Stephen Gallagher wrote:
> These are all great ideas, Ondrej. Would you mind opening RFE bugs for
> them? You can file them upstream at https://fedorahosted.org/sssd or in
> Red Hat Bugzilla https://bugzilla.redhat.com in the sssd component.
>
> On Tue, 2011-10-04 at 16:29 +0200, Ondrej Valousek wrote:
>>> Can you provide more information here? We DO have support for automatic
>>> detection based on DNS SRV records. Does a "DC locator" use some other
>>> mechanism?
>>>
>> Example AD domain CONTOSO.COM used on 3 sites - Prague,Cork, Dublin.
>> I have machine in Prague and I want it to join CONTOSO.COM. Now if I
>> used:
>>
>> dns_discovery_domain = contoso.com
>>
>> sssd would try to connect to any DC in the domain - even the one in
>> Dublin, completely ignoring sites.
>> I have to use:
>>
>> dns_discovery_domain = Prague._sites.contoso.com
>>
>> To force it to use Prague DCs only.
>> My understanding is, that the "DC locator" tries to communicate with
>> DC's first to determine local site and remote DC's are only used if no
>> valid/working DC can be found in the local site (Prague in this case).
>>
>>> I'm not sure what you mean by this? Do you mean you don't want to have
>>> to specify ldap_schema = rfc2307bis and have it instead auto-detected?
>>>
>>> That's trickier than it sounds.
>>>
>> well this is a really small one. I would say it would be perfectly
>> sufficient to introduce something like:
>>
>> ldap_schema=msrfc2307bis
>>
>> which would be equivalent to:
>>
>> ldap_user_object_class = user
>> ldap_group_object_class = group
>> ldap_user_home_directory = unixHomeDirectory
>> ldap_schema = rfc2307bis
>>
>> also, the ldap bind mechanism negotiation could be potentially
>> improved, now I have to explicitly specify
>>
>> ldap_sasl_mech = GSSAPI
>>
>> otherwise sssd tries to use SASL/EXTERNAL which fails when
>> communicating to AD controllers.
>>
>>> What features of the krb5 library do you mean? SSSD provides a locator
>>> plugin that manages several features of the krb5 library, including
>>> kinit and kpasswd.
>>>
>> The thing is that not all Linux apps are using sssd so we have to
>> remember to configure /etc/krb5.conf. too.
>> When using Centrify, all I need to do is:
>>
>> # adjoin contoso.com
>>
>> ..which takes care of everything - /etc/nsswitch.conf, krb5.conf, PAM
>> modules, eeeverything. If I wanted to use sssd for the same job I have
>> to:
>>
>> 1. configure (manually) /etc/samba/smb.conf
>> 2. net ads join (- just to get machine creds)
>> 3. configure (manually) sssd.conf
>> 4. configure (manually) PAM modules
>> 5. configure (manually) krb5.conf
>>
>> I understand that much of this is probably not sssd duty, but it would
>> be helpful to have some script around which would do the same job.
>>
>>
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