On 1/29/2017 11:25 AM, John Darrah wrote:
    On 1/29/2017 12:25 AM, R. Ramesh wrote:
        I recently upgraded my debian jesse to 8.6. All of a sudden
        all samba guest access to this box stopped working. I did not
        update smb.conf file any time before or after. I vaguely
        remember that there was a flash of notes flying by when samba
        was upgraded, but do not recall what it is. BTW, I can mount
        if I provide an actual valid user with password. Only guest
        access does not work. Linux host 3.16.0-4-686-pae #1 SMP
        Debian 3.16.36-1+deb8u2 (2016-10-19) i686 GNU/Linux
        Samba Version: 2:4.2.14+dfsg-0+deb8u2
        Guest access to the following share fails after the upgrade:
        [data]
             path = /data
             create mask = 0755
             directory mask = 0755
             public = yes
             browseable = yes
             writable = yes
             guest ok = yes
        If it is not too much trouble, please copy me your responses
        Thanks
        Ramesh
    Check to see that smb.conf was not replaced. If it was, the
    previous version will be called smb.conf.dpkg-dist or
    smb.conf.ucf-dist. You will have to compare them with your
    smb.conf file and merge any differences.
    -- john
Also check the following in [global] settings:
Change:
    map to guest = Bad User
to:
     map to guest = nobody
-- john