[Freeipa-users] Ubuntu Samba Server Auth against IPA
Matt .
yamakasi.014 at gmail.com
Tue Aug 4 23:00:55 UTC 2015
Hi Chris,
I'm at the right path, but my issue is that:
ldapmodify -Y GSSAPI <<EOF
dn: cn=ipaconfig,cn=etc,dc=domain,dc=tld
changetype: add
add: ipaCustomFields
ipaCustomFields: "Samba Group Type,sambagrouptype,true"
EOF
Does say it exists, my ldap explorer doesn't show it, and when I add
it manually as an attribute it still fails when I add a user on this
sambagrouptype as it's needed by the other attributes
So that is my issue I think so far.
Any clue about that ?
No problem "you don't know something or are no guru" we are all learning! :)
Cheers,
Matt
2015-08-04 21:22 GMT+02:00 Christopher Lamb <christopher.lamb at ch.ibm.com>:
> Hi Matt, Youeen
>
> Just to set the background properly, I did not invent this process. I know
> only a little about FreeIPA, and almost nothing about Samba, but I guess I
> was lucky enough to get the integration working on a Sunday afternoon. (I
> did have an older FreeIPA 3.x / Samba 3.x installation as a reference).
>
> It sounds like we need to step back, and look at the test user and group in
> the FreeIPA LDAP tree. I find using an LDAP browser makes this much easier.
>
> My FreeIPA / Samba Users have the following Samba extensions in FreeIPA
> (cn=accounts, cn=users):
>
> * objectClass: sambasamaccount
>
> * Attributes: sambaSID, sambaNTPassword, sambaPwdLastSet
>
> My FreeIPA / Samba Groups have the following Samba extensions in FreeIPA
> (cn=accounts, cn=groups):
>
> * objectClass: sambaGroupMapping
>
> * Attributes: sambaGroupType, sambaSID
>
> The Users must belong to one or more of the samba groups that you have
> setup.
>
> If you don't have something similar to the above (which sounds like it is
> the case), then something went wrong applying the extensions. It would be
> worth testing comparing a new user / group created post adding the
> extensions to a previous existing user.
>
> i.e.
> are the extensions missing on existing users / groups?
> are the extensions missing on new users / groups?
>
> Cheers
>
> Chris
>
>
>
>
>
> From: Youenn PIOLET <piolet.y at gmail.com>
> To: "Matt ." <yamakasi.014 at gmail.com>
> Cc: Christopher Lamb/Switzerland/IBM at IBMCH,
> "freeipa-users at redhat.com" <freeipa-users at redhat.com>
> Date: 04.08.2015 18:56
> Subject: Re: [Freeipa-users] Ubuntu Samba Server Auth against IPA
>
>
>
> Hi there,
>
> I have difficulties to follow you at this point :)
> Here is what I've done and what I've understood:
>
> ## SMB Side
> - Testparm OK
> - I've got the same NT_STATUS_NO_SUCH_USER when I try to connect.
> - pdbedit -Lv output is all successfull but I can see there is a filter :
> (&(uid=*)(objectclass=sambaSamAccount). In LDAP, the users don't have
> sambaSamAccount.
>
> ## LDAP / FreeIPA side
> - Since SMB server uses LDAP, I did ipa-adtrust-install on my FreeIPA
> server to get samba LDAP extensions.
> - I can see samba classes exist in LDAP but are not used on my group
> objects nor my user objects
> - I have add sambaSamAccount in FreeIPA default user classes,
> and sambaGroupMapping to default group classes. In that state I can't
> create user nor groups anymore, as new samba attributes are needed for
> instantiation.
> - I have add in etc ipaCustomFields: 'Samba Group Type,sambagrouptype,true'
> but I don't get what it does.
> - I tried to add the samba.js plugin. It works, and adds the "local" option
> when creating a group in FreeIPA, supposed to set sambagrouptype to 4 or 2
> (domain). It doesn't work and tells that sambagrouptype attribute doesn't
> exist (but it should now I put sambaGroupType class by default...)
>
> ## Questions
> 0) Can I ask samba not to search sambaSamAccount and use unix / posix
> instead? I guess no.
> 1) How to generate the user/group SIDs ? They are requested to add
> sambaSamAccount classes.
> This article doesn't seem relevant since we don't use domain controller
> http://docs.fedoraproject.org/en-US/Fedora/17/html/FreeIPA_Guide/cifs.html
> and netgetlocalsid returns an error.
> 2) How to fix samba.js plugin?
> 3) I guess an equivalent of samba.js is needed for user creation, where can
> I find it?
> 4) Is your setup working with Windows 8 / Windows 10 and not only Windows
> 7?
>
> Thanks a lot for your previous and future answers
>
> --
> Youenn Piolet
> piolet.y at gmail.com
>
>
> 2015-08-04 17:55 GMT+02:00 Matt . <yamakasi.014 at gmail.com>:
> Hi,
>
> Yes, log is anonymised.
>
> It's strange, my user doesn't have a SambaPwdLastSet, also when I
> change it's password it doesn't get it in ldap.
>
> There must be something going wrong I guess.
>
> Matt
>
> 2015-08-04 17:45 GMT+02:00 Christopher Lamb <christopher.lamb at ch.ibm.com
> >:
> > Hi Matt
> >
> > I assume [username] is a real username, identical to that in the
> FreeIPA
> > cn=accounts, cn=users tree? (i.e. you anonymised the log extract).
> >
> > You user should be a member of the appropriate samba groups that you
> setup
> > in FreeIPA.
> >
> > You should check that the user attribute SambaPwdLastSet is set to a
> > positive value (e.g. 1). If not you get an error in the Samba logs - I
> > would need to play around again with a test user to find out the exact
> > error.
> >
> > I don't understand what you mean about syncing the users local, but we
> did
> > not need to do anything like that.
> >
> > Chris
> >
> >
> >
> >
> > From: "Matt ." <yamakasi.014 at gmail.com>
> > To: Christopher Lamb/Switzerland/IBM at IBMCH
> > Cc: "freeipa-users at redhat.com" <freeipa-users at redhat.com>
> > Date: 04.08.2015 15:33
> > Subject: Re: [Freeipa-users] Ubuntu Samba Server Auth against
> IPA
> >
> >
> >
> > Hi Chris,
> >
> > A puppet run added another passdb backend, that was causing my issue.
> >
> > What I still experience is:
> >
> >
> > [2015/08/04 15:29:45.477783, 3]
> > ../source3/auth/check_samsec.c:399(check_sam_security)
> > check_sam_security: Couldn't find user 'username' in passdb.
> > [2015/08/04 15:29:45.478026, 2]
> > ../source3/auth/auth.c:288(auth_check_ntlm_password)
> > check_ntlm_password: Authentication for user [username] ->
> > [username] FAILED with error NT_STATUS_NO_SUCH_USER
> >
> >
> > I also wonder if I shall still sync the users local, or is it needed ?
> >
> > Thanks again,
> >
> > Matt
> >
> > 2015-08-04 14:16 GMT+02:00 Christopher Lamb <
> christopher.lamb at ch.ibm.com>:
> >> Hi Matt
> >>
> >> From our smb.conf file:
> >>
> >> [global]
> >> security = user
> >> passdb backend = ldapsam:ldap://xxx-ldap2.my.silly.example.com
> >> ldap suffix = dc=my,dc=silly,dc=example,dc=com
> >> ldap admin dn = cn=Directory Manager
> >>
> >> So yes, we use Directory Manager, it works for us. I have not tried
> with
> > a
> >> less powerful user, but it is conceivable that a lesser user may not
> see
> >> all the required attributes, resulting in "no such user" errors.
> >>
> >> Chris
> >>
> >>
> >>
> >>
> >> From: "Matt ." <yamakasi.014 at gmail.com>
> >> To: Christopher Lamb/Switzerland/IBM at IBMCH
> >> Cc: "freeipa-users at redhat.com" <freeipa-users at redhat.com>
> >> Date: 04.08.2015 13:32
> >> Subject: Re: [Freeipa-users] Ubuntu Samba Server Auth against
> IPA
> >>
> >>
> >>
> >> Hi Chris,
> >>
> >> Thanks for the heads up, indeed local is 4 I see now when I add a
> >> group from the GUI, great thanks!
> >>
> >> But do you use Directory Manager as ldap admin user or some other
> >> admin account ?
> >>
> >> I'm not sure id DM is needed and it should get that deep into IPA.
> >> Also when starting samba it cannot find "such user" as that sounds
> >> quite known as it has no UID.
> >>
> >> From your config I see you use DM, this should work ?
> >>
> >> Thanks!
> >>
> >>
> >> Matt
> >>
> >>
> >
> >
> >
> >
>
> --
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>
>
>
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