Re: [Samba] Samba 3 with OpenLDAP multimaster or Fedora-DS

2008-06-19 Thread Carlos Eduardo Pedroza Santiviago
Hello,

On Wed, Jun 18, 2008 at 2:16 PM, Charlie <[EMAIL PROTECTED]> wrote:
[...]
>
> At each site, we have a separate domain, a samba PDC/WINS server, a
> print server, multiple samba file servers, and multiple ethernet
> segments.  If four or five WAN links go down simultaneously it's
> possible that people at one site will not be able to change their
> passwords until connectivity is restored, but everything will still
> work fine (including network browsing).  If there was some reason
> connectivity could not be restored within 24 hours, the on-site staff
> would promote a local LDAP replica (the "site master") and I would
> manually merge any changes after the connectivity was restored with a
> little shell scripting.

Sure... since you have multiple domains, that's a different story,
multiple pdcs/dmbs, etc. I'm interested in experiences with only one
domain, across multiple offices, using samba dcs/openldap multimaster,
to see if it's a reliable solution.

>
> All our POSIX hosts and samba servers implement LDAP failover, so that
> I can take LDAP replicas in and out of service temporarily without
> worrying about breaking anything.  The giant HP-UX monsters use HP's
> ldap-ux, the linux systems use PADL's nss_ldap and pam_ldap.  Samba is
> compiled to use the OpenLDAP libraries (we use Red Hat packages as
> much as possible, and I build custom RPMs when Red Hat's packages are
> insufficient).  I have no kerberos but we have LDAP-integrated RADIUS
> in our switches and routers.
>

Sure, i also have 10 slaves.

> We have a lot of WAN links, to our own remote sites, and also to more
> than 50 other organizations that we serve.  Our LDAP infrastructure
> has been fully functional for a long time (since before syncrepl was
> invented) and is pretty mature.  Now that syncrepl seems to be stable
> technology, I am thinking about multi-mastering again, but I am not in
> a hurry to re-architect everything.  I will probably have to set up
> kerberos eventually and I guess I will revisit all aspects of
> infrastructure design at that time.
>
> A well-integrated LDAP directory can provide single sign-on to
> hundreds of applications at more than 50 sites with HIPAA-compliant
> audit traces and access controls.  Samba expands what you can do with
> LDAP even more, because samba allows arbitrarily defined actions to be
> triggered by network logon and file access events.
>

Yeah... we all love LDAP! :-)

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Re: [Samba] Samba 3 with OpenLDAP multimaster or Fedora-DS

2008-06-18 Thread Carlos Eduardo Pedroza Santiviago
Hi,

On Tue, Jun 17, 2008 at 5:39 PM, Charlie <[EMAIL PROTECTED]> wrote:
> Lots of folks have samba 3 running over OpenLDAP.  Syncrepl is what
> I'd use if I was setting it up today, but I have a very reliable and
> mature implementation already running slurpd, so I am going to stick
> with that for the moment.
[...]
>
> We have one PDC and WINS server per physical site, which is more
> reliable and fault-tolerant than anything else I've tried, but it does
> make LDAP configuration a bit dicey since the Samba Team doesn't yet
> understand why anyone would want to combine a unified authentication
> infrastructure with geographically localized network control.  Setting
> up domain trusts with our configuration is tricky.
>

Humm, so you're not using the same domain for the entire company? In
my situation, we have 5 remote offices, and all using the same domain,
and if for some unknown reason our links (yes, we do have redundant
links) go down, these offices should be able to work with minimal
interruption (by saying this i mean, users should be able to change
their passwords, machines also should be able to update their
accounts, etc).

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[Samba] Samba 3 with OpenLDAP multimaster or Fedora-DS

2008-06-16 Thread Carlos Eduardo Pedroza Santiviago
Hi,

I'd like to know if any of you have ever implemented Samba 3 with
OpenLDAP multimaster (using syncrepl, maybe) or Fedora-DS. The basic
idea would be:

- WAN link dies, the remote office's BDC would promote itself to PDC
(using some kind of monitoring script), and will start accepting
changes to the user base. Also, some change to the local WINS server
would be necessary.
- WAN link returns, the changes are replicated back to the original
PDC, and the WAN's PDC is demoted to BDC again, and changes again the
WINS database.

From what i've read, NT4 seems to do this "automagically", and i'm
having some complaints about that.

What do you guys think?

Best regards,
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Re: [Samba] Subversion VFS Module

2007-07-27 Thread Carlos Eduardo Pedroza Santiviago
Hi,

On 7/27/07, Adam Tauno Williams <[EMAIL PROTECTED]> wrote:
[...]
> > Is there any page where we can see the results of the Summer Of Code
> > Projects? I'm interested in the administrative logs project.
>
> See the archives of the Samba Technical list;  if I recall correctly
> there was some discussion about a logging project awhile ago.
>

Yup, i followed that too. But what i really want to know is if that
administrative project done by Michael Krax (IIRC), will ever hit the
official archive. There were some great modifications done by him,
that would help to audit the modifications done.

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Re: [Samba] Subversion VFS Module

2007-07-27 Thread Carlos Eduardo Pedroza Santiviago
Hi,

On 7/26/07, Gerald (Jerry) Carter <[EMAIL PROTECTED]> wrote:
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
>
> Christian Huldt wrote:
> > I read about a Subversion VFS Module
> > at http://www.samba.org/samba/projects/summercode06.html
> >
> > Is this still moving?
>
> Nope.
>

Is there any page where we can see the results of the Summer Of Code
Projects? I'm interested in the administrative logs project.

thank you,
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Re: [Samba] 3.0.24 and disappearing ACL entries

2007-05-07 Thread Carlos Eduardo Pedroza Santiviago

Hi,

On 5/1/07, Aaron Kincer <[EMAIL PROTECTED]> wrote:

I've been working at this for a few days now and I can't figure out what
is broken. Google turns up similar issues from years back, but I hope
this is a bug resurfacing. ACL entries are being deleted when files are
saved. Here is an example:



Any info on this? I'm having similar problems, when a user with the M$
Suite saves his files.

$ getfacl *
# file: teste.doc
# owner: cadu
# group: XXXEMP
user::rwx
group::rwx
group:XXXAED:rwx
group:XXXEXT:r-x
group:XXXGES:rwx
mask::rwx
other::---

# file: teste.ods
# owner: cadu
# group: XXXEMP
user::rwx
group::rwx
group:XXXAED:rwx
group:XXXEMP:rwx
group:XXXEXT:r-x
group:XXXGES:rwx
mask::rwx
other::---

After saving file "teste.doc", it removed the ACL for the EMP group.
That didn't happen when i saved "teste.ods", using OpenOffice suite.

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Re: [Samba] 3.0.23 ldapsam:trusted=yes problem

2007-03-19 Thread Carlos Eduardo Pedroza Santiviago

Hi,

On 3/15/07, Asier Baranguán <[EMAIL PROTECTED]> wrote:

Hi all!

I've a running Samba PDC (LDAP backend) with windows clients. All the users
are in the LDAP, including the 'guest' user. All except the 'root' user which
is a regular user. Then change in the smb.conf

ldapsam:trusted = yes
ldapsam:editposix = yes

and noticed some speed-up when listing groups, look file ownerships, and so
on. But I can't add machines to the domain: neither with the 'root' user,
neither some users with privileges to join computers.

If I comment the ldapsam:trusted/editposix everything is fine and machines get
added to teh domain. ¿Why? All the users are in the LDAP so ldapsam:trusted
should work :-?



IIRC, when you use the editposix flag, samba tries to manage all
user/groups functions and doesn't use the smbldap scripts you've
defnied. But i don't know if this is already finished. Maybe simo can
answer this?

For now, just use ldapsam:trusted, since it will speed things a lot.

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Re: [Samba] LDAP, checkpwnam and PDC

2006-12-04 Thread Carlos Eduardo Pedroza Santiviago

Hi,

On 12/4/06, Ben Wheare <[EMAIL PROTECTED]> wrote:

Hiya,

I'm trying to set up a Samba PDC with an LDAP backend.
I experienced problems joining machines to domains, the machine account
was created, but Windows said user name cannot be found.
I resolved this by adding ldap to /etc/nsswitch.conf, but this has the
side effect of allowing ldap users to login to the server via SSH.
Whilst I can understand the need for LDAP users to be accessible to the
system, i.e. checkpwnam etc for permisisons, I don't want users to be
able to login to anywhere except the client Windows 2000/XP boxes.

People (only 3) who can login via SSH already have "real" user accounts
in /etc/passwd etc.

Is there a way to stop this being allowed?



Check your sshd (/etc/ssh/sshd_config) configuration, specially the
AllowUsers and/or AllowGroups options.

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Re: [Samba] RE: AIX Testers Needed.

2006-10-10 Thread Carlos Eduardo Pedroza Santiviago

Hi,

I've installed the pware package in our testbed AIX 5.3. However, i am
unable to change permissions on my own home directory, when trying to
add a domain user to it.

I have the following situation:

- 1 SLES9 Samba/PDC with OpenLDAP (master)
- 1 AIX 5.3 updated (53-003 IIRC), using secldapclntd (AIX's native
LDAP client), and Samba 3.0.23c. This host was added as a domain
member.

I start nmbd, smbd and winbindd, but AFAICT, it cannot translate uid
<-> sid mappings.

Any clue? I'll generate a loglevel10 of this ASAP.

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[Samba] Re: AIX Testers Needed.

2006-09-28 Thread Carlos Eduardo Pedroza Santiviago

Hi,

On 9/12/06, William Jojo <[EMAIL PROTECTED]> wrote:



Hello AIX folks,


I am changing the packaging of Samba for AIX. Presently Samba is built with
a truckload of static libs and bound up in a package that has no other
support for the supporting infrastructure.


That's good news!



What I'd like to do instead is make as much of the package dependant upon
shared libs and to allow for completeness of the package. In other words,
BDB, OpenSSL, OpenLDAP, SASL, KRB5, libiconv and gcc shared libs are all
included as *complete* packages; you'll have an LDAP server, Kerberos
support, SSL and Berkeley tools for hot backups and recovery.



Great, i'll test here in a 5.3 server and give some feedback about its
behavior. Have you tried using it with Symas CDS?

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[Samba] Re: Samba, AIX and Winbind

2006-08-09 Thread Carlos Eduardo Pedroza Santiviago

[...]

- Has anyone been able to do something like this? I mean, using a
unique UID across multiple environments?


More on this:

$ ldapsearch -b ou=idmap,dc=domain -x
# extended LDIF
#
# LDAPv3
# base  with scope sub
# filter: (objectclass=*)
# requesting: ALL
#

# Idmap, DOMAIN
dn: ou=Idmap,dc=DOMAIN
objectClass: organizationalUnit
objectClass: sambaUnixIdPool
ou: Idmap
gidNumber: 10010
uidNumber: 10001

# S-1-5-21-112207604-471413004-518595180-18138, Idmap, domain
dn: sambaSID=S-1-5-21-112207604-471413004-518595180-18138,ou=Idmap,dc=domain
objectClass: sambaIdmapEntry
objectClass: sambaSidEntry
uidNumber: 1
sambaSID: S-1-5-21-112207604-471413004-518595180-18138

As i see above, when using winbind to map SID to UID, and using LDAP
as backend, it'll map every entry below ou=Idmap,dc=domain. But, why
doesn't it use the same uid for my user?
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[Samba] Samba, AIX and Winbind

2006-08-09 Thread Carlos Eduardo Pedroza Santiviago

Hi,

I'm having some problems in the following situation:

- a SLES9 PDC (Samba/OpenLDAP)
- a IBM NAS500 Gateway, supposed to be a storage with SMB features,
but Samba is far better than that

I've got Samba 3.0.23 working, and i can see my LDAP users/groups
(through aix native ldap client -- i mean, the "id" command returns
every user found in the base).

However, i'm not able to assign new permissions to my folders, since i
get this error:

create_canon_ace_lists: unable to map SID
S-1-5-21-112207604-471413004-518595180-18138 to uid or gid.

I was told that i needed to use winbindd, and that really worked
(thanks Idra), BUT, that raises another problem: since i have to
specify idmap ranges for uid/gid, i lost my unique uid stored in the
LDAP base.

I've tried to use idmap "backend = ldap:ldap://myserver";, but, i still
have to specify those ranges, otherwise i get this error:

[2006/08/09 10:49:59, 0] nsswitch/winbindd_util.c:winbindd_param_init(787)
 winbindd: idmap uid range missing or invalid
[2006/08/09 10:49:59, 0] nsswitch/winbindd_util.c:winbindd_param_init(788)
 winbindd: cannot continue, exiting.
[2006/08/09 10:49:59, 1] nsswitch/winbindd.c:main(986)
 Could not init idmap -- netlogon proxy only

Finally, Some questions:
- Why do i have to still specify idmap ranges when using backend = ldap?
- Does winbindd ldap support work with OpenLDAP?
- Has anyone been able to do something like this? I mean, using a
unique UID across multiple environments?

Thanks!
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Re: [Samba] LDAP Attributes

2006-07-14 Thread Carlos Eduardo Pedroza Santiviago

Hi,

[...]


I was asked to implement logon and logoff control in our network. I read
in the link below that those parameters are no used (unless not yet). Is
there any other way to do it? Or any hope that it will be implemented
soon?


http://samba.org/samba/docs/man/Samba-HOWTO-Collection/passdb.html

sambaLogonTimeInteger value currently unused.
sambaLogoffTimeInteger value currently unused.


[...]

Maybe this can help you:

http://lists.samba.org/archive/samba/2006-January/115883.html
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[Samba] Samba and CUPS

2006-07-05 Thread Carlos Eduardo Pedroza Santiviago

Hi again,

I'd like to know if it's possible to configure samba to not list classes
stored in CUPS? I've a lot of classes here, and listing printers shared on
my samba server takes some time... where it should list only the printer
queues and not printer queues plus classes.

Thanks.
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[Samba] Samba and CUPS

2006-07-03 Thread Carlos Eduardo Pedroza Santiviago

Hi,

I'd like to know if it's possible to configure samba to not list classes
stored in CUPS? I've a lot of classes here, and listing printers shared on
my samba server takes some time... where it should list only the printer
queues and not printer queues plus classes.

Thanks.
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[Samba] Auditing user/group management

2006-06-01 Thread Carlos Eduardo Pedroza Santiviago

Hi,

I'd like to know if samba offers any way to audit user/group management
tasks. I need to audit those events. AFAIK, i can change the smbldap-tools
scripts to do some debugging, but doing it from samba would be nice.

Is there any way? Maybe increasing the log level? How about some audit
option in the config file?

thanks.
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[Samba] Trust relationship and LDAP backend

2006-05-13 Thread Carlos Eduardo Pedroza Santiviago

Hi,

I have a domain using LDAP backend, and recently we've managed to establish
a trust relation with another domain in our network, which uses a pure NT4
server. After that, some accounts from the trusted domain started being
created in our base. The user created doesn't have the same attributes as a
valid user (he doesn't have sambaSamAccount, for example). But for auditing
purposes, this shouldn't happen.

Is this a normal behaviour?
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[Samba] Trust relationship and LDAP backend

2006-05-11 Thread Carlos Eduardo Pedroza Santiviago

Hi,

I have a domain using LDAP backend, and recently we've managed to establish
a trust relation with another domain in our network, which uses a pure NT4
server. After that, some accounts from the trusted domain started being
created in our base. The user created doesn't have the same attributes as a
valid user (he doesn't have sambaSamAccount, for example). But for auditing
purposes, this shouldn't happen.

Is this a normal behaviour?
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[Samba] Updating sambaLogonTime when user logs in

2006-01-04 Thread Carlos Eduardo Pedroza Santiviago
Hi,

I've made a quick and dirty Samba config. to update the sambaLogonTime
timestamp when user logs in (LDAP backend).

Here, i have an specific share that all users connect when they log in,
besides the netlogon. However i think you can use the netlogon to modify
it too (maybe add some verification in case of "Guest" connects, which
is left to you).

Basically, you have to add:

[netlogon]
...
root preexec = /usr/bin/updateLogonTime.sh "%u"
...

And updateLogonTime.sh:

__BEGIN__
#!/bin/bash

TIMESTAMP=$(date +%s)

/usr/bin/ldapctl YOURDOMAIN replace $1 sambaLogonTime "$TIMESTAMP"

__EOF__

Easy, huh?

ldapctl is a fucking awesome tool i found while surfing around. You can
grab it here:
http://sneakymustard.com/blog/code/python/ldapctl.shtml

In some organizations, the sambaLogonTime is required to met their
policy.

Of course, other modifications could be done as well.

cya,
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[Samba] sambaLogonHours again...

2005-11-20 Thread Carlos Eduardo Pedroza Santiviago
Hi all,

I've been playing around with the sambaLogonHours attribute to lock down
access from some users. This is the real scenario:

1. Admin user "ADM" wants to allow user "foo" only from 6am to 6pm, so
he opens his favourite tool usrmgr.exe and set this restriction for user
"foo".

2. Next day, some minutes before 8am user "foo" tries to log in, in his
supposed "allowed" time and gets an error, saying he's not allowed to
log in that time. An error is appended to the domain controller's logs.

So, we have a real problem here. Going further, "ADM" tries to discover
what could be wrong, and decides to check all the timezones. GMT-2 in
the server, GMT-2 in the client, GMT-2 in the "ADM"'s machine. Looks
fine.

Trying to "decrypt" the sambaLogonHours attribute, "ADM" finds out that
the restriction time was really stored in GMT format, and so, the user
"foo" will only be allowed to logon *after 2 hours* the restriction
imposed!

I've read the archives, some users had the same problem, and looks like
there's no known solution AFAIK.

Browsing the the samba code, auth_sam.c, logon_hours_ok(), seems that
the verification of the restriction is done checking the server's
localtime.

Changing the server's time solves the problem (of course), but that's
not the best solution IMHO.

Has anyone got a better soluction?

thanks,
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Re: [Samba] List all computers from WINS?

2005-10-03 Thread Carlos Eduardo Pedroza Santiviago
Em Oct 03, 2005 08:31 AM, Tomasz Chmielewski <[EMAIL PROTECTED]>
escreveu:

> Carlos Eduardo Pedroza Santiviago schrieb:
> > Hi,
> > 
> > I know NMBLOOKUP can query a WINS server about its entries by name,
> > or
> > IP. When using broadcast, i can specify "*" as the query filter.
> > However, i cannot get all entries from a WINS server using "*".
> > 
> > Is there any other way to accomplish this? Please note that using
> > broadcast is not a good solution. :)
> 
> generally, WINS entries are stored in wins.dat file.
> 
> perhaps viewing it is what you want?
> 

Sorry, i forgot to mention that my WINS server is Windows based. :-)

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[Samba] List all computers from WINS?

2005-10-03 Thread Carlos Eduardo Pedroza Santiviago
Hi,

I know NMBLOOKUP can query a WINS server about its entries by name, or
IP. When using broadcast, i can specify "*" as the query filter.
However, i cannot get all entries from a WINS server using "*".

Is there any other way to accomplish this? Please note that using
broadcast is not a good solution. :)

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[Samba] Samba and IBM TotalStorage NAS500

2005-09-08 Thread Carlos Eduardo Pedroza Santiviago
Hi,

Has anyone ever configured a NAS500 TotalStorage from IBM to do
pass-through authentication to Samba servers?

AFAIK, NAS500 only "speaks" NTLM, and Samba should support it. The other
problem is that i tried to mount its exported directories, using smbfs,
but i can't list its contents. With cifs file system, i wasn't able to
mount it.

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[Samba] Local groups support

2005-07-26 Thread Carlos Eduardo Pedroza Santiviago
Hi all,

Has anyone been able to get local groups support with a Samba Server through
winbindd? Specifically, i am able to store several SIDs in sambaSIDList, but i
can't get winbind working to retrieve (or expand) its members.
Is Winbindd supposed to work _only_ with NT servers?

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[Samba] sambaLogonHours - Really GMT?

2005-07-01 Thread Carlos Eduardo Pedroza Santiviago
Hi,

I'm using BRST timezone (Brazilian East), and AFAIK[1], sambaLogonHours stores
it in GMT timezone.

IIRC, the NT PDC is comparing with its local time. For example, if the user is
allowed to log between 6am to 6pm, it will work with BRST timezone, even
usrmgr.exe hours restriction is supposed to be in GMT time.

However, when trying to log on a Samba machine, with LDAP backend, it is
comparing with that time-3 (GMT-3). I'm starting to think that because of the
localization of the PDC NT (pt_BR), it is storing that time in BRST zone.

I've tried a lot of things, from changing the timezone to GMT, GMT-3, and even
messing with "time offset" in smb.conf. What am i missing?

Thanks.

[1]: http://lists.samba.org/archive/samba-technical/2004-December/038271.html

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Re: [Samba] Samba3 Limitations?

2005-03-18 Thread Carlos Eduardo Pedroza Santiviago
Hi,

Gerald (Jerry) Carter ([EMAIL PROTECTED]) escrito:
>
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
>
> Carlos Eduardo Pedroza Santiviago wrote:
>
> | - User Rights and Privileges: This is kinda new in latest
> | Samba release, 3.0.11, but doesn't implement yet
> | all NT4 funcionalities. Specifically here, they use the privileges
> | called "Log on as a service" and "Logon as a batch
> | job", and the others, too. I am not a NT4 master, but AFAIK,
> | this can be changed to local policies (in windows machines,
> | 2003 atm) insted of using the Domain ones. Am i right?
>
> Windows privileges are local to the machine on which they are assigned.
> The privlieges assigned on the Samba host have no relation to
> privileged on the local clients.

Yeah, but through "User Manager->Policies->User Rights". Aren't that rights
supposed to work with all domain computers?

>
> | - Local groups: AFAIK, NT4 Admins used them to ease the
> | administration of permissions ACLs, but how implement it
> | using Samba3+OpenLDAP? Or the only way is to change all
> | the local groups to domain groups and redo the acl stuff?
> | (the ntadmins will cry)
>
> Local groups on domain members ?  or domain local groups on
> the DC's.  I'm not sure exactly what you are asking for here.
> You can have domain local groups using the group mapping
> functionality, but IIRC domain local groups (in nt4) are only
> available between DC's.

Domain local groups, which could be created using User Manager? ("User->New
local group"). So samba implements that via group mapping (idmap with ldap
backend?)?

Thanks!

-- 
Carlos Eduardo Pedroza Santiviago - 
Tel: 0xx45 5206359/6608 Visite: http://www.psl-trinacional.org


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[Samba] Samba3 Limitations?

2005-03-18 Thread Carlos Eduardo Pedroza Santiviago
Hi,

Recently, i worked in a pilot project to migrate a NT4 Domain to Samba3 +
OpenLDAP. They have a quite large user base, approx. 2500 accounts, plus
approx. 1800 groups, which 200 are local groups.

Unfortunately, we faced some problems, and i'd like to know if anyone has
faced them too, and how overcame them:

- User Rights and Privileges: This is kinda new in latest Samba release,
3.0.11, but doesn't implement yet all NT4 funcionalities. Specifically here,
they use the privileges called "Log on as a service" and "Logon as a batch
job", and the others, too. I am not a NT4 master, but AFAIK, this can be
changed to local policies (in windows machines, 2003 atm) insted of using the
Domain ones. Am i right?

- Local groups: AFAIK, NT4 Admins used them to ease the administration of
permissions ACLs, but how implement it using Samba3+OpenLDAP? Or the only way
is to change all the local groups to domain groups and redo the acl stuff?
(the ntadmins will cry)

Thanks,

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