We are splitting our users into 2 domains(DOMAINA and DOMAINB (changed for security reason)). I am having problems getting users who log into their workstation on DOMAINA to access a samba share on DOMAINB. We are using W2K3 servers as our AD with LDAP. Samba shares on are CentOS5.1 servers. I Can anyone point me to some docs on how to set this up? I have been rumbling through google for the past 2 weeks and haven't found very many links that have been helpful. We have set up interdomain trusts on the Windows side. When I try to access a samba share from a windows box on DOMAINA to a samba share on DOMAINB I get this in the samba log: [2008/11/20 09:53:18, 1] auth/auth.c:check_domain_match(172) check_domain_match: Attempt to connect as user username from domain DOMAINA denied When I do a wbinfo -m both domains are listed. wbinfo -m DOMAINA DOMAINB wbinfo --sequence DOMAINA : DISCONNECTED DOMAINB : 82408 smb.conf workgroup = DOMAINB security = ads realm = DOMAINB.COM allow trusted domains = no rid:DOMAINB=10000-100000000idmap uid = 10000-100000000 idmap gid = 10000-100000000 winbind enum users = yes winbind enum groups = yes winbind nested groups = no winbind use default domain = yes winbind separator = + template shell = /bin/bash template homedir = /home/%U krb5.conf [libdefaults] default_realm = DOMAINB.COM [realms] DOMAINB.COM = { admin_server = servername.domainb.com kdc = servername.domainb.com } DOMAINA.COM = { admin_server = servername.domaina.com kdc = servername.domaina.com kdc = servername2.domaina.com } [domain_realms] .domainb.com = DOMAINB.COM domainb.com = DOMAINB.COM .domaina = DOMAINA.COM domaina.com = DOMAINA.COM .kerberos.server = DOMAINA.COM nsswitch.conf passwd: files winbind shadow: files winbind group: files winbind protocols: files winbind services: files winbind netgroup: files winbind automount: files winbind hosts: files dns wins Thanks in advanced! j _________________________________________________________________ Windows Live Hotmail now works up to 70% faster. http://windowslive.com/Explore/Hotmail?ocid=TXT_TAGLM_WL_hotmail_acq_faster_112008