samba: files written to public share belong to nobody

Question

I have setup a samba share like this:

    [shared]
    path = /home/shared/
    comment = shared
    public = yes
    writable = yes
    printable = no

I can access it from windows, but when I upload files to it, the files I uploaded have the following permission:

-rwxr--r-- 1 nobody nobody 899381 Mar  7 11:59 letter17.rtf

What I would like to see is that, when a user accesses this share, the user acts as if he was a particular user of the samba server(say dave). So that he has access to files that 'dave' has access to, and the files he uploaded belongs to 'dave'.
which option do I use to achieve this?

Answer 1

add this line to the [Global] section of smb.conf

guest account = dave