[Samba] visibility of groups when multiple Samba servers use the same LDAP server
matthias.leopold at meduniwien.ac.at
Mon Feb 11 12:46:05 UTC 2019
Am 11.02.19 um 13:22 schrieb Rowland Penny via samba:
> On Mon, 11 Feb 2019 12:30:51 +0100
> Matthias Leopold via samba <samba at lists.samba.org> wrote:
>> we are using a _single_ LDAP server as backend for _multiple_ Samba
>> standalone file servers (security=user). This LDAP server serves
>> mainly other purposes and access for Samba is read only so the
>> situation is not optimal but "it works for us". Still I don't
>> understand one phenomenon concerning visibility of LDAP groups.
>> The LDAP configuration in smb.conf for all our Samba servers is
>> basically like this (with each server having it's own branch for
>> "ldap group suffix", that's the point):
>> passdb backend = ldapsam:ldap://ldap.domain.tld
>> ldap suffix = dc=domain,dc=tld
>> ldap user suffix = ou=people
>> ldap group suffix = ou=server01,ou=smb,ou=Groups
>> NSS uses LDAP via SSSD like this:
>> id_provider = ldap
>> ldap_uri = ldap://ldap.domain.tld
>> ldap_search_base = dc=domain,dc=tld
>> ldap_user_search_base = ou=People,dc=domain,dc=tld
>> ldap_group_search_base = ou=server01,ou=smb,ou=Groups,dc=domain,dc=tld
>> The sambaDomainName is stored in an entry in LDAP path
>> ou=smb,dc=domain,dc=tld. Each server has it's own entry, but all use
>> the same SID.
>> This setup is not exactly pretty, but it "works". Still, unexpectedly
>> Samba on server01 sees groups in other branches than
>> "ou=server01,ou=smb,ou=Groups" (with "net groupmap list").
>> - group is cn=testgroup,ou=server02,ou=smb,ou=Groups,dc=domain,dc=tld
>> - on server01 this group is visible with "net groupmap list
>> - "getent group testgroup" does not work (as expected)
>> Why is this?
> You are going to have to give us more info ;-)
> What OS's ?
> What version(s) of Samba ?
> Have there been any updates/upgrades to anything ?
thx for quick reply.
Samba is 4.8.3 on CentOS 7.
LDAP server is IBM Tivoli Directory Server on AIX.
The situation has always been like this, upgrades didn't change anything.
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