I'm trying to set up a samba server with access for users in the Linux (RHEL 6) "wheel" group. I am basing smb.conf off of the example here where it goes through the [accounting] example. In my smb.conf I have

[tmp]
    comment = temporary files
    path = /var/share
    valid users = @wheel
    read only = No
    create mask = 0664
    directory mask = 02777
    max connections = 0

(rest of the output from $ testparm /etc/samba/smb.conf is here). And

groups `whoami`

returns user01 : wheel.

When I use the following command from another machine (Mac OS) as the Linux user (user01):

$ smbclient -L NETBIOSNAME/tmp

it asks for a password, I hit return without a password, and get:

Enter user01's password:
Anonymous login successful
Domain=[DOMAIN] OS=[Unix] Server=[Samba 3.6.9-151.el6_4.1]
Sharename       Type      Comment
    ---------       ----      -------
    tmp             Disk      temporary files
    IPC$            IPC       IPC Service (Samba Server Version 3.6.9-151.el6_4.1)

But when I try

$ smbclient //NETBIOSNAME/tmp

I try entering the password I use for the Linux login, and get a bunch of stuff logged, including

check_sam_security: Couldn't find user 'user01' in passdb.
...
session setup failed: NT_STATUS_LOGON_FAILURE

(I can give more logging information if it would be helpful.)

I can't find a reference to more steps I need to add group users in the resource. Should I be manually adding samba users from the group somehow?

Thank you