samba without authorization

cd

$sudo vi /etc/samba/smb.conf

and set interfaces to lo and your local network interface. In my case: eth1.

interfaces = lo eth1
bind interfaces only = true

Now, it is time to smoothen samba default security by changing the security variable: security and make sure it is set to share instead of user and that guest account is enabled:

security = share
...
...
guest account = nobody

Now, we can create a share to be accessible to guest users:

[Guest Share]
        comment = Guest access share
        path = /path/to/dir/to/share
        browseable = yes
        read only = yes
        guest ok = yes

You can now test that your configuration is good using testparm:

$ testparm

If everything is fine, it is time to reload samba service to have your new configuration taken into account:

$sudo /etc/init.d/samba reload

http://www.debuntu.org/samba-how-to-share-files-for-your-lan-without-userpassword/