samba - Oct 2023 - Permissions issue on domain member server (samba as an appliance)

Hey Rowland,

  Sorry, I'm thick. I understand why you would not want to create a linux
user called Administrator but then where will the credentials come from? In
my AD, I do not have a user called Administrator. I guess I must have a
user with RID 500 though, I'll look for that.

Thanks for your help,
Greg

On Sat, Oct 28, 2023 at 3:09?AM Rowland Penny via samba <
samba at lists.samba.org> wrote:
> On Fri, 27 Oct 2023 16:14:52 -0400
> Greg Dickie <greg at justaguy.ca> wrote:
>
> > Hey Rowland,
> >
> > Hmmm. I may have misunderstood. I don't believe it explicitly said
to
> > do that but I took it as that. Should I create a local Administrator
> > account instead?
> >
>
> The whole idea behind the user map on a Unix domain member is to map
> the Domain Administrator account (RID 500) to the Unix user 'root'.
> When you do something on Windows as 'Administrator' is done on Unix
as
> 'root'.
>
> I would never use 'Administrator' directly on Unix and here is why:
>
> I use the 'rid' idmap backend and if I run 'getent passwd
> administrator', I get:
>
> administrator:*:10500:10513::/home/administrator:/bin/bash
>
> As you can see 'Administrator' has the ID '10500', which
makes it a
> normal Unix user with no special powers. However, from Windows via
> Samba, the 'Administrator' ID is set to '0' by the user map
and I hope
> you realise what other Unix user has the ID '0'.
>
> If you haven't realised yet, no, do not create a local Administrator,
> for one thing, you already have one :-)
>
> Rowland
>
>
>
> --
> To unsubscribe from this list go to the following URL and read the
> instructions:  https://lists.samba.org/mailman/options/samba
>

-- 


Greg Dickie
just a guy
514-983-5400

Administrator is a built in account in the AD. When you provisioned the domain
with a password , that was Administrators password.

LP
On 29 Oct 2023 at 21:36 +0100, Greg Dickie via samba <samba at
lists.samba.org>, wrote:
> Hey Rowland,
>
> Sorry, I'm thick. I understand why you would not want to create a linux
> user called Administrator but then where will the credentials come from? In
> my AD, I do not have a user called Administrator. I guess I must have a
> user with RID 500 though, I'll look for that.
>
> Thanks for your help,
> Greg
>
> On Sat, Oct 28, 2023 at 3:09?AM Rowland Penny via samba <
> samba at lists.samba.org> wrote:
>
> > On Fri, 27 Oct 2023 16:14:52 -0400
> > Greg Dickie <greg at justaguy.ca> wrote:
> >
> > > Hey Rowland,
> > >
> > > Hmmm. I may have misunderstood. I don't believe it explicitly
said to
> > > do that but I took it as that. Should I create a local
Administrator
> > > account instead?
> > >
> >
> > The whole idea behind the user map on a Unix domain member is to map
> > the Domain Administrator account (RID 500) to the Unix user
'root'.
> > When you do something on Windows as 'Administrator' is done on
Unix as
> > 'root'.
> >
> > I would never use 'Administrator' directly on Unix and here is
why:
> >
> > I use the 'rid' idmap backend and if I run 'getent passwd
> > administrator', I get:
> >
> > administrator:*:10500:10513::/home/administrator:/bin/bash
> >
> > As you can see 'Administrator' has the ID '10500',
which makes it a
> > normal Unix user with no special powers. However, from Windows via
> > Samba, the 'Administrator' ID is set to '0' by the
user map and I hope
> > you realise what other Unix user has the ID '0'.
> >
> > If you haven't realised yet, no, do not create a local
Administrator,
> > for one thing, you already have one :-)
> >
> > Rowland
> >
> >
> >
> > --
> > To unsubscribe from this list go to the following URL and read the
> > instructions: https://lists.samba.org/mailman/options/samba
> >
>
>
> --
>
>
> Greg Dickie
> just a guy
> 514-983-5400
> --
> To unsubscribe from this list go to the following URL and read the
> instructions: https://lists.samba.org/mailman/options/samba

On Sun, 29 Oct 2023 16:35:14 -0400
Greg Dickie <greg at justaguy.ca> wrote:
> Hey Rowland,
> 
>   Sorry, I'm thick. I understand why you would not want to create a
> linux user called Administrator but then where will the credentials
> come from? In my AD, I do not have a user called Administrator. I
> guess I must have a user with RID 500 though, I'll look for that.
> 
If you look here:
https://wiki.samba.org/index.php/Setting_up_Samba_as_a_Domain_Member#Mapping_the_Domain_Administrator_Account_to_the_Local_root_User

It tells you how to set up the user.map on a Unix domain member (on a
Samba DC, the mapping is done for you in idmap.ldb).

Amongst the information notes is this:

If, for any reason, you change the domain Administrator account name,
you must use your new name for Administrator in the following instead
of Administrator.

Rowland