[Samba] net sam/samba ldap: Failed to add user 'xxx' with error: Group already exists.

Steven Enderle steven.enderle at empic.de
Tue May 18 04:47:38 MDT 2010


we are trying to set up Samba with LDAP Backend. Using the Samba
toolchain to add our existing users/groups, the net command seems to get
confused about what users and groups are, if both have the same name and
are used in the same context.

Here is what I tried:

-> Create the Domain Group
# net sam createdomaingroup duplicate -U Administrator%pwd
Created domain group duplicate with RID 1172

-> Create the User
# net rpc user add duplicate -U Administrator%pwd
Failed to add user 'duplicate' with error: Group already exists.

Other way around, adding first user then group, similar result:

-> Create the User
# net rpc user add duplicate2 -U Administrator%pwd
Added user 'duplicate2'.

-> Create the Domain Group
# net sam createdomaingroup duplicate2 -U Administrator%pwd
Created domain group duplicate2 with RID 1174

-> Add new User to Group
# net sam addmem duplicate2 duplicate2 -U Administrator%pwd
Can only add members to local groups so far, duplicate2 is a User

Samba seems to fail at differentiating groups and users of same name.

1) Is there a way to tell samba/net to add the user duplicate to group

2) Is there a dirty workaround that will get us running anyway?

3) What is the background that causes this problem? Is there something I
am missing?

Thanks for your help in advance.

samba version: 3.5.2-SerNet-Debian
smb.conf used:

server string = QNAP NAS
announce version = 5.1
workgroup = <hidden>
password server = localhost
disable netbios = yes
wins support = no
smb ports = 445
domain logons = no
domain master = no
local master = no
preferred master = no
template homedir = /home/%U
template shell = /bin/bash
os level = 65
winbind use default domain = yes
log level = 3
max log size = 2000
debug timestamp = yes
interfaces = lo eth0
bind interfaces only = true
hostname lookups = yes
log file = /var/log/samba/smbd.%m
passdb backend = ldapsam:ldap://localhost
encrypt passwords = yes
ldapsam:trusted = yes
ldapsam:editposix = yes
ldap admin dn = <hidden>
ldap user suffix = ou=people
ldap group suffix = ou=groups
ldap idmap suffix = ou=idmap
ldap machine suffix = ou=computers
ldap passwd sync = Yes
ldap suffix = <hidden>
ldap delete dn = Yes
ldap ssl = Off
idmap config <hidden>:default      = yes
idmap config <hidden>:backend      = ldap
idmap config <hidden>:ldap_base_dn = ou=idmap,<hidden>
idmap config <hidden>:ldap_user_dn = <hidden>
idmap config ER.EMPIC.DE:ldap_url     = ldap://localhost
idmap config ER.EMPIC.DE:range        = 10000 - 500000
idmap alloc backend = ldap
idmap alloc config : ldap_base_dn = ou=idmap,<hidden>
idmap alloc config : ldap_user_dn = <hidden>
idmap alloc config : ldap_url     = ldap://localhost
idmap uid = 10000 - 500000
idmap gid = 10000 - 500000
comment = My Share
path = /export
browseable = yes
public = yes
writable = yes
printable = no
create mask = 0765
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