<div dir="ltr">Hey guys,<div> </div><div>I'll try to make a tutorial soon, sorry I'm quite in a rush these days :)<div> </div><div>General idea:</div><div> </div><div>On FreeIPA (4.1)</div><div>- `ipa-adtrust-install --add-sids` (creates ipaNTsecurityidentifier attribude, also known as SID)</div><div>- regenerate each user password to build ipaNTHash attribute, not here by default on users</div><div>- use your ldap browser to check ipaNTHash values are here on user objects</div><div>- create a CIFS service for your samba server</div><div>- Create user roles/permissions as described here: <a href="http://freeipa-users.redhat.narkive.com/ez2uKpFS/authenticate-samba-3-or-4-with-freeipa" style="font-size:12.8000001907349px" target="_blank">http://freeipa-users.redhat.narkive.com/ez2uKpFS/authenticate-samba-3-or-4-with-freeipa</a> so that CIFS service will be able to read ipaNTsecurityidentifier and ipaNTHash attributes in LDAP (ACI)</div><div>- SCP ipasam.so module to your cifs server (this is the magic trick) : scp /usr/lib64/samba/pdb/ipasam.so root@samba-server.domain:/usr/lib64/samba/pdb/ You can also try to recompile it.</div><div> </div><div>On SAMBA Server side (CentOS 7...)</div><div>- Install server keytab file for CIFS</div><div>- check ipasam.so is here.</div><div>- check you can read password hash in LDAP with `ldapsearch -Y GSSAPI uid=admin ipaNTHash` thanks to kerberos </div><div>- make your smb.conf following the linked thread and restart service</div><div> </div><div>I don't know if it works in Ubuntu. I know sssd has evolved quickly and ipasam may use quite recent functionalities, the best is to just try. You can read in previous thread : "If you insist on Ubuntu you need to get ipasam somewhere, most likely to compile it yourself".</div><div> </div><div>Make sure your user has ipaNTHash attribute :)</div><div> </div><div>You may want to debug authentication on samba server, I usually do this:</div><div>`tail -f /var/log/samba/log* | grep <username></div><div class="gmail_extra"> </div><div class="gmail_extra">Cheers <div><div><div><div>--</div><div>Youenn Piolet</div><div><a href="mailto:piolet.y@gmail.com" target="_blank">piolet.y@gmail.com</a></div><div style="font-size:large"><div> </div></div></div></div></div> <div class="gmail_quote">2015-08-05 17:40 GMT+02:00 Matt . <<a href="mailto:yamakasi.014@gmail.com" target="_blank">yamakasi.014@gmail.com</a>>: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi, This sounds great to me too, but a howto would help to make it more clear about what you have done here. The thread confuses me a little bit. Can you paste your commands so we can test out too and report back ? Thanks! Matt <div><div> 2015-08-05 15:18 GMT+02:00 Christopher Lamb <<a href="mailto:christopher.lamb@ch.ibm.com" target="_blank">christopher.lamb@ch.ibm.com</a>>: > Hi Youenn > > Good news that you have got an integration working > > Now you have got it going, and the solution is fresh in your mind, how > about adding a How-to page on this solution to the FreeIPA wiki? > > Chris > > > > From: Youenn PIOLET <<a href="mailto:piolet.y@gmail.com" target="_blank">piolet.y@gmail.com</a>> > To: "Matt ." <<a href="mailto:yamakasi.014@gmail.com" target="_blank">yamakasi.014@gmail.com</a>> > Cc: Christopher Lamb/Switzerland/IBM@IBMCH, > "<a href="mailto:freeipa-users@redhat.com" target="_blank">freeipa-users@redhat.com</a>" <<a href="mailto:freeipa-users@redhat.com" target="_blank">freeipa-users@redhat.com</a>> > Date: <a href="tel:05.08.2015%2014" value="+33508201514" target="_blank">05.08.2015 14</a>:51 > Subject: Re: [Freeipa-users] Ubuntu Samba Server Auth against IPA > > > > Hi guys, > > Thank you so much your previous answers. > I realised my SID were stored in ipaNTsecurityidentifier, thanks to > ipa-adtrust-install --add-sids > > I found an other way to configure smb here: > <a href="http://freeipa-users.redhat.narkive.com/ez2uKpFS/authenticate-samba-3-or-4-with-freeipa" rel="noreferrer" target="_blank">http://freeipa-users.redhat.narkive.com/ez2uKpFS/authenticate-samba-3-or-4-with-freeipa</a> > It works perfectly. > > I'm using module ipasam.so I have manually scp to the samba server, > Samba is set to use kerberos + ldapsam via this ipasam module. > Following the instructions, I created a user role allowing service > principal to read ipaNTHash value from the LDAP. > ipaNTHash are generated each time a user changes his password. > Authentication works perfectly on Windows 7, 8 and 10. > > For more details, the previously linked thread is quite clear. > > Cheers > > -- > Youenn Piolet > <a href="mailto:piolet.y@gmail.com" target="_blank">piolet.y@gmail.com</a> > > > 2015-08-05 11:10 GMT+02:00 Matt . <<a href="mailto:yamakasi.014@gmail.com" target="_blank">yamakasi.014@gmail.com</a>>: > Hi Chris. > > Yes, Apache Studio did that but I was not sure why it complained it > was "already" there. > > I'm still getting: > > IPA Error 4205: ObjectclassViolation > > missing attribute "sambaGroupType" required by object class > "sambaGroupMapping" > > When adding a user. > > I also see "class" as fielname under my "Last name", this is not OK also. > > > > We sure need to make some howto, I think we can nail this down :) > > Thanks for the heads up! > > Matthijs > > 2015-08-05 7:51 GMT+02:00 Christopher Lamb <<a href="mailto:christopher.lamb@ch.ibm.com" target="_blank">christopher.lamb@ch.ibm.com</a>>: > > Hi Matt > > > > If I use Apache Directory Studio to add an attribute ipaCustomFields to > > cn=ipaConfig,cn=etc, the operation it performs is a modify, as shown > below: > > > > #!RESULT OK > > #!CONNECTION ldap://xxx-ldap2.my.silly.example.com:yyy > > #!DATE 2015-08-05T05:45:04.608 > > dn: cn=ipaConfig,cn=etc,dc=my,dc=silly,dc=example,dc=com > > changetype: modify > > add: ipaCustomFields > > ipaCustomFields: Samba Group Type,sambagrouptype,true > > > > After that I then have a visible attribute ipaCustomFields as expected. > > > > When adding the attribute, the wizard offered me "ipaCustomFields" as > > attribute type in a drop down list. > > > > Once we get this cracked, we really must write a how-to on the FreeIPA > > Wiki. > > > > Chris > > > > > > > > From: Christopher Lamb/Switzerland/IBM@IBMCH > > To: "Matt ." <<a href="mailto:yamakasi.014@gmail.com" target="_blank">yamakasi.014@gmail.com</a>> > > Cc: "<a href="mailto:freeipa-users@redhat.com" target="_blank">freeipa-users@redhat.com</a>" <<a href="mailto:freeipa-users@redhat.com" target="_blank">freeipa-users@redhat.com</a>> > > Date: <a href="tel:05.08.2015%2007" value="+33508201507" target="_blank">05.08.2015 07</a>:31 > > Subject: Re: [Freeipa-users] Ubuntu Samba Server Auth against > IPA > > Sent by: <a href="mailto:freeipa-users-bounces@redhat.com" target="_blank">freeipa-users-bounces@redhat.com</a> > > > > > > > > Hi Matt > > > > I also got the same result at that step, but can see nothing in Apache > > Directory Studio. > > > > As I am using existing Samba / FreeIPA groups migrated across, they > > probably were migrated with all the required attributes. > > > > Looking more closely at that LDIF: I wonder should it not be: > > > > ldapmodify -Y GSSAPI <<EOF > > dn: cn=ipaconfig,cn=etc,dc=domain,dc=tld > > changetype: modify > > add: ipaCustomFields > > ipaCustomFields: "Samba Group Type,sambagrouptype,true" > > EOF > > > > i.e. changetype: modify, instead of changetype add ? > > > > I don't want to play around with my prod directory - I will setup an EL > 7.1 > > VM and install FreeIPA 4.x and Samba 4.x That will allow me to play > around > > more destructively. > > > > Chris > > > > > > > > > > > > From: "Matt ." <<a href="mailto:yamakasi.014@gmail.com" target="_blank">yamakasi.014@gmail.com</a>> > > To: Christopher Lamb/Switzerland/IBM@IBMCH > > Cc: Youenn PIOLET <<a href="mailto:piolet.y@gmail.com" target="_blank">piolet.y@gmail.com</a>>, " > <a href="mailto:freeipa-users@redhat.com" target="_blank">freeipa-users@redhat.com</a>" > > <<a href="mailto:freeipa-users@redhat.com" target="_blank">freeipa-users@redhat.com</a>> > > Date: <a href="tel:05.08.2015%2001" value="+33508201501" target="_blank">05.08.2015 01</a>:01 > > Subject: Re: [Freeipa-users] Ubuntu Samba Server Auth > against IPA > > > > > > > > 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 < > <a href="mailto:christopher.lamb@ch.ibm.com" target="_blank">christopher.lamb@ch.ibm.com</a>>: > >> 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 <<a href="mailto:piolet.y@gmail.com" target="_blank">piolet.y@gmail.com</a>> > >> To: "Matt ." <<a href="mailto:yamakasi.014@gmail.com" target="_blank">yamakasi.014@gmail.com</a>> > >> Cc: Christopher Lamb/Switzerland/IBM@IBMCH, > >> "<a href="mailto:freeipa-users@redhat.com" target="_blank">freeipa-users@redhat.com</a>" <<a href="mailto:freeipa-users@redhat.com" target="_blank">freeipa-users@redhat.com</a>> > >> Date: <a href="tel:04.08.2015%2018" value="+33408201518" target="_blank">04.08.2015 18</a>: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 > >> > > > <a href="http://docs.fedoraproject.org/en-US/Fedora/17/html/FreeIPA_Guide/cifs.html" rel="noreferrer" target="_blank">http://docs.fedoraproject.org/en-US/Fedora/17/html/FreeIPA_Guide/cifs.html</a> > > >> 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 > >> <a href="mailto:piolet.y@gmail.com" target="_blank">piolet.y@gmail.com</a> > >> > >> > >> 2015-08-04 17:55 GMT+02:00 Matt . <<a href="mailto:yamakasi.014@gmail.com" target="_blank">yamakasi.014@gmail.com</a>>: > >> 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 > > <<a href="mailto:christopher.lamb@ch.ibm.com" target="_blank">christopher.lamb@ch.ibm.com</a> > >> >: > >> > 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 ." <<a href="mailto:yamakasi.014@gmail.com" target="_blank">yamakasi.014@gmail.com</a>> > >> > To: Christopher Lamb/Switzerland/IBM@IBMCH > >> > Cc: "<a href="mailto:freeipa-users@redhat.com" target="_blank">freeipa-users@redhat.com</a>" <<a href="mailto:freeipa-users@redhat.com" target="_blank">freeipa-users@redhat.com</a>> > >> > Date: <a href="tel:04.08.2015%2015" value="+33408201515" target="_blank">04.08.2015 15</a>: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 < > >> <a href="mailto:christopher.lamb@ch.ibm.com" target="_blank">christopher.lamb@ch.ibm.com</a>>: > >> >> Hi Matt > >> >> > >> >> From our smb.conf file: > >> >> > >> >> [global] > >> >> security = user > >> >> passdb backend = ldapsam:ldap://<a href="http://xxx-ldap2.my.silly.example.com" rel="noreferrer" target="_blank">xxx-ldap2.my.silly.example.com</a> > >> >> 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 ." <<a href="mailto:yamakasi.014@gmail.com" target="_blank">yamakasi.014@gmail.com</a>> > >> >> To: Christopher Lamb/Switzerland/IBM@IBMCH > >> >> Cc: "<a href="mailto:freeipa-users@redhat.com" target="_blank">freeipa-users@redhat.com</a>" <<a href="mailto:freeipa-users@redhat.com" target="_blank">freeipa-users@redhat.com</a>> > >> >> Date: <a href="tel:04.08.2015%2013" value="+33408201513" target="_blank">04.08.2015 13</a>: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 > >> >> > >> >> > >> > > >> > > >> > > >> > > >> > >> -- > >> Manage your subscription for the Freeipa-users mailing list: > >> <a href="https://www.redhat.com/mailman/listinfo/freeipa-users" rel="noreferrer" target="_blank">https://www.redhat.com/mailman/listinfo/freeipa-users</a> > >> Go to <a href="http://freeipa.org" rel="noreferrer" target="_blank">http://freeipa.org</a> for more info on the project > >> > >> > >> > > > > > > > > > > -- > > Manage your subscription for the Freeipa-users mailing list: > > <a href="https://www.redhat.com/mailman/listinfo/freeipa-users" rel="noreferrer" target="_blank">https://www.redhat.com/mailman/listinfo/freeipa-users</a> > > Go to <a href="http://freeipa.org" rel="noreferrer" target="_blank">http://freeipa.org</a> for more info on the project > > > > > > > > > > -- > Manage your subscription for the Freeipa-users mailing list: > <a href="https://www.redhat.com/mailman/listinfo/freeipa-users" rel="noreferrer" target="_blank">https://www.redhat.com/mailman/listinfo/freeipa-users</a> > Go to <a href="http://freeipa.org" rel="noreferrer" target="_blank">http://freeipa.org</a> for more info on the project > > > </div></div></blockquote></div> </div></div></div>