[Samba] Retry: Mapping AD domain users to UNIX users

Bardo Wolf b.wolf at uib.de
Wed Jan 23 13:14:06 GMT 2008

perhaps it is not a good idea to use the same names for a Unix User and
the AD User.

If for example you have unix-user xyz with uid=7738

and an AD-User xyz so the AD-USer xyz gets via winbind perhaps uid=199300

What answer should
id xyz



Nigel.Pain at scotland.gsi.gov.uk schrieb:
> I posted this last week but haven't heard anything. I'm not sure if this
> is because nobody knows the answer (can't believe that!) or I'm missing
> something obvious in the documentation and people are thinking "Read The
> Fine Manual". Whatever the reason, if anyone has any insights into this
> problem I'd be very grateful for their comments.
> We're using Samba 3.0.23b (binaries downloaded from Sunfreeware) on
> Solaris 9 as a member server, using "security = DOMAIN" in an Active
> Directory 2003 domain. The server is primarily an application server,
> running SAS software, but we have a share to Windows to enable users to
> save programs and data from their Windows XP workstations. Historically
> we've been using PC Netlink, Sun's version of Lanman, but this isn't
> compatible with AD 2003 so we need to move to Samba.
> We're struggling to establish a mapping between domain user accounts and
> UNIX user accounts that are similarly named (the same naming convention
> is used for both). My understanding of Samba, albeit sketchy, was that
> it could automatically make a mapping between local and domain accounts
> of the same name. However, this doesn't appear to be happening. If I set
> a file's permissions for a specified user in Solaris it appears in the
> file's security within Windows, but the user is listed as a Unix User
> along the lines of:
> u123456 (Unix User\u123456)
> I was expecting that there should be an implicit mapping between u123456
> in Solaris and domain\u123456 but maybe I've got the wrong end of the
> stick. We need to maintain the local users so that we can control who
> has access to the server software, and we maintain password aging both
> on the server and the domain so maintaining a separate password database
> for Samba would be a complication. an Extract from nsswitch.conf and
> (edited) smb.conf and included below.
> As you will see from nsswitch.conf, we are using winbind. wbinfo will
> resolve any domain information and getent passwd will return domain user
> accounts.
> Many thanks in advance.
> nsswitch.conf:
> passwd:     files winbind
> group:      files winbind
> hosts:      files dns winbind
> smb.conf:
> [global]
> 	workgroup = our-domain-name
> 	netbios aliases = mc18unxa
> # dual nics: the netmask is correct for our network
> 	interfaces = xx.xx.xxx.xx/,
> yy.yy.yyy.yy/
> 	security = DOMAIN
> 	null passwords = Yes
> 	password server = *
> 	passdb backend = tdbsam
> 	lanman auth = No
> 	client NTLMv2 auth = Yes
> 	client lanman auth = No
> 	client plaintext auth = No
> 	log level = 1
> 	log file = /var/samba/log/log.%m
> 	max log size = 50000
> 	load printers = No
> 	dns proxy = No
> 	ldap ssl = no
> 	idmap uid = 10000-100000000
> 	idmap gid = 10000-100000000
> 	winbind enum users = Yes
> 	winbind enum groups = Yes
> 	winbind use default domain = Yes
> 	create mask = 0644
> 	directory mask = 0775
> 	hosts deny = none
> 	case sensitive = No
> 	preserve case = No
>       domain master = no
>       local master = no
>       preferred master = no
>       os level = 0
> [dosptn]
> 	path = /dosptn
> 	read only = No
> 	inherit permissions = Yes
> 	guest ok = Yes
> ----------------------------------------
> Nigel Pain
> The Scottish Government
> Corporate Systems Support
> Information Systems and Information Services (ISIS)
> Victoria Quay 
> EH6 6QQ 
> UK
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