Running samba3.4.3, I notice the net command has address resolution problems but not for all sub-commands. Bad: bin/net -s /home/martin/smb.conf -I172.21.0.156 -Ulab/dev%dev rpc share list Connection to localhost failed (Error NT_STATUS_CONNECTION_REFUSED) Good: bin/net -s /home/martin/smb.conf -I172.21.0.156 -Ulab/dev%dev rpc group None boinc_admins boinc_projects boinc_users Debugger Users ... If I repeat the first command after changing -I (explicit IP address) to -S (servername) then I get success: bin/net -s /home/martin/smb.conf -S172.21.0.156 -Ulab/dev%dev rpc share list IPC$ D$ ADMIN$ H$ C$ Should I go ahead and submit a bug? Thanks // Martin