samba username mapping

[Franz F. Steininger]

Hello,

I have a problem with user mapping in samba.
security = server to a Win NT domain.
this is working fine
we have the same UID´s/account on unix as on windows,
but just a few people are registered as users on unix.
I want to preserve the usernames which are on both systems, and map the users just on the win domain to a special user on unix.

How can I configure the username.map to achieve this?

We are running samba 2.2.3a on a rp5470 for filetransfers between systems.

regards
Fra

[RAC_1]

Configuration file smb.conf has a parameter
mapfile = /tmp/mapfile.txt.

This just a text file and will have user name mappings from windows to unix users.

http://www.oreilly.com/catalog/samba/chapter/book/ch06.pdf

for details.

[Franz F. Steininger]

Hello RAC,

thanks for the link
I did try some combinations in the usermapping.
did not find a combination that is 1´st looking if account is also a native unix account. it just ended up every time with the usermapping for the others.
It should not be a solution, where every unix account has to be mapped and serviced manually in the mapfile.

Fra

[Geoff Wild]

We use username mapping...

In /etc/opt/samba/username.map

unixid = ntuser1, ntuser2, ntuser3

That will map those nt users to the unix id.

Then in smb.conf:

username map = /etc/opt/samba/username.map

Rgds...Geoff

[Darren Prior]

You can also specify groups as well as wildcards in the username map, see the O'Reilly Using Samba book or the smb.conf man page.

If you have a user on Windows that isn't on unix then you'll need to map that Windows user to some unix id - and that could involved a number of Windows users being mapped to one unix id (not great for determining file ownership) or a long list of names mapped from one to the other.

regards,

Darren.

[Franz F. Steininger]

my actual problem is, that I get all users mapped to my default user for people not registered with an unix account.

the mapping for this common user is OK, but this group overrides the native UID.

!%U = %u <- this is just a try that did not work
!sa000000 = sa00* <- the default map for just win users is OK

I get the unix users remapped to default user sa000000

regards
Franz

[Franz F. Steininger]

my real problem is, that also the unix users are remapped to the default user-ID sa000000.

I do not want their unix name remapped

!%U = %u <<<- is just a try and not working
!sa000000 = sa00* <<<- is OK, mapping to default

without usermapping the user-ID is OK, I get
SERVER\sa001234 for the correct unix user-id.
with usermap.conf I get SERVER\sa000000 which is the common(default) remapped user.

regards
Franz

[Geoff Wild]

For your real users, add them as well to username.map:

gwild = gwild
unixuser2 = unixuser2

etc..

That way they they won't get remapped.

If they need RW access to same share as the "common" user, then make sure they all belong to the same group and make the directory 660.


Rgds...Geoff

[Darren Prior · Accepted solution]

I think Geoff's answer is the way forward, as the %U variable isn't always used by Samba.

This may not be a neat solution if you have to add a lot of users to the username map file.

regards,

Darren.