Hello, I'm running Samba 3.0.0 on a PDC server with LDAP. I tested the latest version (3.0.1) on a test server with the same config files. But I get the following message in my logs if /var/lib/samba/group_mapping.tdb 's mode is set to 600 (like it is set in my 3.0.0 server). [2003/12/29 17:59:51, 0] groupdb/mapping.c:init_group_mapping(139) Failed to open group mapping database [2003/12/29 17:59:51, 0] groupdb/mapping.c:get_group_from_gid(655) failed to initialize group mappingFailed to open group mapping database [2003/12/29 17:59:51, 0] groupdb/mapping.c:get_group_from_gid(655) failed to initialize group mappingFailed to open group mapping database [2003/12/29 17:59:51, 0] groupdb/mapping.c:get_group_from_gid(655) failed to initialize group mappingFailed to open group mapping database [2003/12/29 17:59:51, 0] groupdb/mapping.c:get_group_from_gid(655) failed to initialize group mappingget_alias_user_groups: gid of user p-dinhvan doesn't exist. Check your /etc/passwd and /etc/group files To avoid this messages, I need to chmod 666 the file. Doesn't seem to be normal, is it ? When I chmod 666 the group_mapping.tdb, I get another strange message in my logs (log level = 10) : [2003/12/29 18:08:59, 1] lib/smbldap.c:smbldap_retry_open(890) Connection to LDAP Server failed for the 1 try! [2003/12/29 18:08:59, 0] passdb/pdb_ldap.c:ldapsam_search_one_group(1649) ldapsam_search_one_group: Problem during the LDAP search: LDAP error: (Insufficient access) ldapsam_search_one_group: Query was: ou=groups,dc=linux,dc=strg,dc=arte, (&(objectClass=sambaGroupMapping)(gidNumber=4294967295)) [2003/12/29 18:08:59, 2] passdb/pdb_ldap.c:ldapsam_search_one_group(1636) ldapsam_search_one_group: searching for:[(&(objectClass=posixGroup)(gidNumber=4294967295))] [2003/12/29 18:08:59, 0] lib/smbldap.c:smbldap_open(801) smbldap_open: cannot access LDAP when not root.. The gidNumber seems ... big... the last user manipulated by samba is p-dinhvan, who has : gidNumber: 100 sambaSID: S-1-5-21-2533171995-41200505-3792937173-4156 uidNumber: 1578 sambaPrimaryGrouSID: S-1-5-21-2533171995-41200505-3792937173-513 This message doesn't seem to make problems for the user's logon. I found nothing answering to this problem in the lists archives... Thank you PS : sorry for my poor english -- Pierre Dinh-van