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James Cort

2006-Jan-16 09:42 UTC

[Samba] Adding workstations to domain as non-root

Hi,

The Problem:

I have a samba domain using LDAP as the backend, complete with the 
IdealX LDAP scripts.

Most of my Unix boxes (certainly anything which does any Samba stuff) 
authenticates against the same LDAP backend, using it for groups and 
users.

I need to grant some people sufficient priviliges to add workstations 
to the domain, but I don't want to give them the root password in LDAP 
as doing so will also give them root access to the Unix boxes.

I would therefore like to configure the system such that users who are 
a member of a specific group (Domain Admins springs immediately to 
mind) are able to add workstations to the domain.

I have already added myself to the "Domain Admins" group:

# Domain Admins, Group, u4eatech.com
dn: cn=Domain Admins,ou=Group,dc=u4eatech,dc=com
objectClass: posixGroup
objectClass: sambaGroupMapping
gidNumber: 512
cn: Domain Admins
memberUid: Administrator
memberUid: jamesc
description: Netbios Domain Administrators
sambaSID: S-1-5-21-2044582568-1589646193-1504741369-512
sambaGroupType: 2
displayName: Domain Admins


And I've chown/chmod'ed the smbldap config files so members of the 
Domain Admins  group can read them:

elli sbin # ls -ail /etc/smbldap-tools/
total 27
238406 drwxr-xr-x   2 root root           192 Jan 11 16:16 .
  9120 drwxr-xr-x  42 root root          3160 Jan 12 09:31 ..
238451 -rw-r--r--   1 root root          7634 Jan 11 16:06 smbldap.conf
30283 -rw-r--r--   1 root root          7728 Jan 10 13:44 smbldap.conf.old
238421 -rw-r-----   1 root Domain Admins  438 Jan 11 08:52 smbldap_bind.conf


However, I can't add users using the smbldap-useradd script:

jamesc@elli ~ $ /usr/sbin/smbldap-useradd  -w "phobos$"
Could not find base dn, to get next uidNumber at 
/usr/sbin//smbldap_tools.pm line 995.

Looking at the OpenLDAP logs, it seems that smbldap-useradd is 
performing the search without first authenticating with the LDAP server:


Jan 16 09:24:19 cygnus_new slapd[12571]: conn=67383 fd=52 ACCEPT from 
IP=172.30.1.22:60342 (IP=0.0.0.0:389)
Jan 16 09:24:19 cygnus_new slapd[26453]: conn=67383 op=1 SRCH 
base="dc=u4eatech,dc=com" scope=2 deref=2 
filter="(&(objectClass=posixAccount)(uid=phobos$))"
Jan 16 09:24:19 cygnus_new slapd[26453]: conn=67383 op=1 SEARCH RESULT 
tag=101 err=0 nentries=0 textJan 16 09:24:19 cygnus_new slapd[16367]: conn=67383
op=2 SRCH
base="sambaDomainName=U4EATECH,dc=u4eatech,dc=com" scope=0 deref=2 
filter="(objectClass=sambaUnixIdPool)"
Jan 16 09:24:19 cygnus_new slapd[16367]: conn=67383 op=2 SEARCH RESULT 
tag=101 err=0 nentries=0 textJan 16 09:24:19 cygnus_new slapd[12571]: conn=67383
fd=52 closed

stephane.purnelle@corman.be

2006-Jan-16 10:04 UTC

head link

RE [Samba] Adding workstations to domain as non-root

I your log I see two problem or comment : 

- Have you configured idealx-tools (smbldap.conf & smbldap_bind.conf)
- Have you added in your ldap_tree the objectclass sambaUnixIdPool into 
the entry sambaDomainName="xxxxxxx" (it's the preference entry
from
idealx-howto)


-----------------------------------
St?phane PURNELLE                         stephane.purnelle@corman.be
Service Informatique       Corman S.A.           Tel : 00 32 087/342467

samba-bounces+stephane.purnelle=corman.be@lists.samba.org a ?crit sur 
16/01/2006 10:41:55 :
> Hi,
> 
> The Problem:
> 
> I have a samba domain using LDAP as the backend, complete with the 
> IdealX LDAP scripts.
> 
> Most of my Unix boxes (certainly anything which does any Samba stuff) 
> authenticates against the same LDAP backend, using it for groups and 
> users.
> 
> I need to grant some people sufficient priviliges to add workstations 
> to the domain, but I don't want to give them the root password in LDAP 
> as doing so will also give them root access to the Unix boxes.
> 
> I would therefore like to configure the system such that users who are 
> a member of a specific group (Domain Admins springs immediately to 
> mind) are able to add workstations to the domain.
> 
> I have already added myself to the "Domain Admins" group:
> 
> # Domain Admins, Group, u4eatech.com
> dn: cn=Domain Admins,ou=Group,dc=u4eatech,dc=com
> objectClass: posixGroup
> objectClass: sambaGroupMapping
> gidNumber: 512
> cn: Domain Admins
> memberUid: Administrator
> memberUid: jamesc
> description: Netbios Domain Administrators
> sambaSID: S-1-5-21-2044582568-1589646193-1504741369-512
> sambaGroupType: 2
> displayName: Domain Admins
> 
> 
> And I've chown/chmod'ed the smbldap config files so members of the 
> Domain Admins  group can read them:
> 
> elli sbin # ls -ail /etc/smbldap-tools/
> total 27
> 238406 drwxr-xr-x   2 root root           192 Jan 11 16:16 .
>   9120 drwxr-xr-x  42 root root          3160 Jan 12 09:31 ..
> 238451 -rw-r--r--   1 root root          7634 Jan 11 16:06 smbldap.conf
> 30283 -rw-r--r--   1 root root          7728 Jan 10 13:44 
smbldap.conf.old> 238421 -rw-r-----   1 root Domain Admins  438 Jan 11 08:52 
smbldap_bind.conf> 
> 
> However, I can't add users using the smbldap-useradd script:
> 
> jamesc@elli ~ $ /usr/sbin/smbldap-useradd  -w "phobos$"
> Could not find base dn, to get next uidNumber at 
> /usr/sbin//smbldap_tools.pm line 995.
> 
> Looking at the OpenLDAP logs, it seems that smbldap-useradd is 
> performing the search without first authenticating with the LDAP server:
> 
> 
> Jan 16 09:24:19 cygnus_new slapd[12571]: conn=67383 fd=52 ACCEPT from 
> IP=172.30.1.22:60342 (IP=0.0.0.0:389)
> Jan 16 09:24:19 cygnus_new slapd[26453]: conn=67383 op=1 SRCH 
> base="dc=u4eatech,dc=com" scope=2 deref=2 
> filter="(&(objectClass=posixAccount)(uid=phobos$))"
> Jan 16 09:24:19 cygnus_new slapd[26453]: conn=67383 op=1 SEARCH RESULT 
> tag=101 err=0 nentries=0 text> Jan 16 09:24:19 cygnus_new slapd[16367]:
conn=67383 op=2 SRCH
> base="sambaDomainName=U4EATECH,dc=u4eatech,dc=com" scope=0
deref=2
> filter="(objectClass=sambaUnixIdPool)"
> Jan 16 09:24:19 cygnus_new slapd[16367]: conn=67383 op=2 SEARCH RESULT 
> tag=101 err=0 nentries=0 text> Jan 16 09:24:19 cygnus_new slapd[12571]:
conn=67383 fd=52 closed
> 
> 
> 
> 
> -- 
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> instructions:  https://lists.samba.org/mailman/listinfo/samba

simo

2006-Jan-16 12:41 UTC

head link

[Samba] Adding workstations to domain as non-root

On Mon, 2006-01-16 at 09:41 +0000, James Cort wrote:> Hi,
> 
> The Problem:
> 
> I have a samba domain using LDAP as the backend, complete with the 
> IdealX LDAP scripts.
> 
> Most of my Unix boxes (certainly anything which does any Samba stuff) 
> authenticates against the same LDAP backend, using it for groups and 
> users.
> 
> I need to grant some people sufficient priviliges to add workstations 
> to the domain, but I don't want to give them the root password in LDAP 
> as doing so will also give them root access to the Unix boxes.
Set "enable privileges = yes" in smb.conf
Create a specific group for the users that you want to be able to add
the group.
Map the group with net groupmap

When done, use net rights grant to grant this group the
SeMacchineAccount privilege.

No need to chown the scripts, samba will take care of everything.

Simo.

-- 
Simo Sorce
Samba Team
email: idra@samba.org
http://samba.org/~idra

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