[Samba] Why isn't Samba honouring UNIX permissions? [NOT PROTECTIVELY MARKED]

Nigel.Pain at scotland.gsi.gov.uk Nigel.Pain at scotland.gsi.gov.uk
Thu Mar 4 06:17:06 MST 2010


Solaris 9 
Samba 3.4.5 

I know this isn't the sort of query that gets much response but I'd be
really grateful of any advice people can offer. 

I'm getting really fed up with Samba as I've never been able to make it
work properly. Either I'm missing something basic (probably) or it just
doesn't behave in the way I think it should!

The main issue I'm having is that it doesn't appear to honour the
permissions that I have set in Solaris. I'm using UNIX acls so a
directory can have a permissions set something like this:

$ getfacl OCEA 

# file: OCEA 
# owner: root 
# group: sdmu 
group::rwx              #effective:rwx 
group:ocea:r-x          #effective:r-x 

Now, under UNIX, a member of group sdmu should be able to read, write
and delete within the directory, a member of group ocea should only be
able to read and other users shouldn't be able to open it even. I would
expect the same to happen via Samba. However, any domain user that maps
to a local user can do anything they like within the directory.

I'm using Domain security but this happens with server security too. I
wanted to use ADS security but I'm coming up with the Solaris
NGROUPS_MAX problem (most of our domain users have in excess of 70 group
memberships). Here's the smb.conf:

        unix charset = LOCALE 
        workgroup = OURDOMAIN 
        realm = OURDOMAIN.GOV.UK 
        server string = OURSERVER 
        bind interfaces only = Yes 
        security = DOMAIN 
        password server = dc.ourdomain.gov.uk 
        log level = 2 
        log file = /usr/local/samba/var/log.%m 
        max log size = 10000 
        domain master = No 

        path = /testshare 
        read only = No 
        acl group control = Yes 
        create mask = 0775 
        directory mask = 0775 
        inherit permissions = Yes 
        inherit acls = Yes 

Many thanks. 

Nigel Pain 
The Scottish Government 
Corporate Systems Support 


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