Hi, I running samba-3.0.13-1 on RH9 (openldap-2.0.27-8,krb5-1.2.7-10,nss_ldap-202-5) and configured as show below, my intention is only to make IDMAP storage in LDAP using winbind. I've looked on SAMBA3 by example book and relatives official guide on the site. First I have try to run samba and winbind retriving users and groups from ADS and storing them in winbindd_idmap.tdb and winbindd_cache.tdb files and it seems to work fine. After I have introduce the LDAP backend and relative configuration as shown below, but I have received the errors at the bottom of the message. Why it doesn't work? I found only example that show domains with only one prefix could I wrong the ldap configuration? Thanks. Marco. /etc/samba/smb.conf netbios name = XXXX03 os level = 16 wins server = XXX.XXX.XXX.XXX socket options = IPTOS_LOWDELAY TCP_NODELAY SO_KEEPALIVE unix charset = LOCALE workgroup = WORKGROUP realm = PREFIX1.PREFIX2.COM security = ADS password server = kdc01.sinter.gkn.com encrypt passwords = yes winbind use default domain = Yes winbind separator = / winbind enum users = Yes winbind enum groups = Yes ldap ssl = No ldap admin dn = cn=Manager,dc=prefix1,dc=prefix2,dc=com ldap idmap suffix = ou=Idmap ldap suffix = dc=prefix1,dc=prefix2,dc=com idmap backend = ldap:ldap://localhost idmap uid = 10000-40000 idmap gid = 10000-40000 hide unreadable = Yes template homedir = /data/user/%U template shell = /bin/false use sendfile = Yes /etc/nsswitch.conf passwd: compat ldap shadow: compat ldap group: compat ldap hosts: files dns wins /etc/ldap.conf host 127.0.0.1 base dc=prefix1,dc=prefix2,dc=com binddn cn=Manager,dc=prefix1,dc=prefix2,dc=com bindpw secret pam_password exop nss_base_passwd ou=People,dc=prefix1,dc=prefix2,dc=com?one nss_base_shadow ou=People,dc=prefix1,dc=prefix2,dc=com?one nss_base_group ou=Group,dc=prefix1,dc=prefix2,dc=com?one ssl no /etc/openldap/idmap.ldif dn: dc=prefix1,dc=prefix2,dc=com objectClass: dcObject objectClass: organization dc: prefix1.prefix2 o: xxx description: xxx dn: cn=Manager,dc=prefix1,dc=prefix2,dc=com objectClass: organizationalRole cn: Manager description: Directory Manager dn: ou=Idmap,dc=prefix1,dc=prefix2,dc=com objectClass: organizationalUnit ou: idmap /etc/krb5.conf [logging] default = FILE:/var/log/krb5libs.log <FILE:/var/log/krb5libs.log> kdc = FILE:/var/log/krb5kdc.log <FILE:/var/log/krb5kdc.log> admin_server = FILE:/var/log/kadmind.log <FILE:/var/log/kadmind.log> [libdefaults] ticket_lifetime = 24000 default_realm = PREFIX1.PREFIX2.COM dns_lookup_realm = false dns_lookup_kdc = false [realms] PREFIX1.PREFIX2.COM = { kdc = KDC01.PREFIX1.PREFIX2.COM } [domain_realm] .prefix1.prefix2.com = PREFIX1.PREFIX2.COM prefix1.prefix2.com = PREFIX1.PREFIX2.COM [kdc] profile = /var/kerberos/krb5kdc/kdc.conf [appdefaults] pam = { debug = false ticket_lifetime = 36000 renew_lifetime = 36000 forwardable = true krb4_convert = false /var/spool/samba/log.winbindd [2005/03/30 17:53:26, 0] sam/idmap.c:idmap_init(138) idmap_init: failed to initialize remote backend! [2005/03/30 17:53:26, 1] nsswitch/winbindd.c:main(897) Could not init idmap -- netlogon proxy only [2005/03/30 17:54:34, 1] nsswitch/winbindd_user.c:winbindd_fill_pwent(50) error getting user id for sid S-1-5-21-597916725-1483147915-620655208-19426 [2005/03/30 17:54:34, 1] nsswitch/winbindd_user.c:winbindd_fill_pwent(50) error getting user id for sid S-1-5-21-597916725-1483147915-620655208-19426