HOWTO Ubuntu share without authentication

Wiki Ubuntu Edgy

Install:
Samba package on Gutsy
sudo apt-get install samba

Configure:
sudo mkdir /home/public
sudo chmod 777 /home/public/
sudo cp /etc/samba/smb.conf /etc/samba/smb.conf_backup
sudo gedit /etc/samba/smb.conf

Find this line 

...
;  security = user
...

Replace with the following line 

  security = share

Append the following lines at the end of file 

[public]
comment = Public Folder
path = /home/public
available = yes
browsable = yes
guest ok = yes
public = yes
writable = yes
create mask = 0777
directory mask = 0777
force user = nobody
force group = nogroup

Save the edited file  

sudo testparm
sudo /etc/init.d/samba restart