Hello, i have the following problem with samba 3.0.11: Two servers in different domains (one member of domain a, the other backup domain controller of domain b). Between the pdc?s of the domain a and b an interdomain trust was established. For certain posixgroups a groupmapping configured. Unter Windows NT the mapped groups are visible and i am able to add them to the rights configuration of the share. Under Windows NT two shares were configured: Share 1: In the case the user is added to the shared with read-access rights the user can view the content of the share. Share 2: In the case the a group with the user is added, the access to the content ist denied although i can connect to the share. ./smbclient -U <username> -d 4 -W rbb \\\\<memberserver of domain a>\\<sharename>$ pm_process() returned Yes added interface ip=172.16.9.20 bcast=172.16.9.255 nmask=255.255.254.0 added interface ip=127.0.0.1 bcast=127.255.255.255 nmask=255.0.0.0 Client started (version 3.0.11). Connecting to 172.16.8.34 at port 445 error connecting to 172.16.8.34:445 (Connection refused) Connecting to 172.16.8.34 at port 139 session request ok Serverzone is -7200 Password: Domain=[Domain A] OS=[Windows NT 4.0] Server=[NT LAN Manager 4.0] session setup ok tconx ok smb: \> ls NT_STATUS_ACCESS_DENIED listing \* 42911 blocks of size 8388608. 32128 blocks available Total bytes listed: 0 smb: \> Can anyone help me ? Bye Joerg