nautilus is using libsmbclient, which is a part of Samba. mount.cifs is unrelated to Samba; the mount utilities itself are a part of the cifs-utils package, the actual implementation lives in the kernel.
** Package changed: samba (Ubuntu) => linux (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in Ubuntu. https://bugs.launchpad.net/bugs/946953 Title: 'Permission denied' when mounting a windows share on an EMC array To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/946953/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs