Yeah, used it for years. Just make sure you're not opening the Samba ports to the world - I mean, those ports aren't open on my router firewall but I still restrict the Samba ports to 192.168.1.* anyway on the Ubuntu firewall and Samba still required user authentication. More on reddit.com

It's a recent change to Windows systems, described at https://learn.microsoft.com/en-us/troubleshoot/windows-server/networking/guest-access-in-smb2-is-disabled-by-default#symptoms There are two solutions available to you: Add your Samba credentials to the Windows Credential Manager. This requires a fix on every client Change map to guest = bad user in your Samba configuration to map to guest = never. This requires a fix on every server and is the (more) correct option Importantly, it's nothing to do with SMB1 vs later versions. In your Samba smb.conf you shouldn't need to specify either server min protocol or server max protocol. Just leave them at the implied default values More on reddit.com

Okay, this is a config for a simple single server that's not a member of an AD domain and is doing it's own internal username/password verification. It's taken from my home server, but it should be relevant for your needs. Some of the entries should no longer be needed (TCP_NODELAY for example) however I'm a believer of "if it aint broke..." You'll want to modify the share sections for what your shares are, and also modify the security modes etc to something a bit more secure once you've confirmed it's working. Also don't forget to run "smbpasswd" for each user that you want authenticated access for... [global] workgroup = CORP netbios name = FILESERVER server string = Linux Samba File Server map to guest = Bad User null passwords = Yes guest account = guest wins support = Yes client NTLMv2 auth = Yes log file = /var/log/samba/log.%m max log size = 50 socket options = TCP_NODELAY IPTOS_LOWDELAY disable spools = Yes show add printer wizard = No preferred master = No domain master = No idmap uid = 15000-20000 idmap gid = 15000-20000 winbind use default domain = Yes dont descend = ./lost+found use sendfile = yes hide unreadable = yes hide files = /lost+found/ cache directory = /var/run/samba/locks/cache directory name cache size = 500 os level = 0 [Homes] comment = Home Directories read only = No hide files = /.*/lost+found/ browseable = No browsable = No [Fileshare] comment = A basic file share path = /srv/fileshare write list = user1, user2, user3, @group1, @group2 force create mode = 0666 force security mode = 0666 force directory mode = 0777 force directory security mode = 0777 guest ok = Yes hide special files = Yes hide files = /.*/lost+found/ dont descend = /lost+found More on reddit.com

The following is a minimal configuration for a Samba standalone server that only allows guest access: [global] map to guest = Bad User log file = /var/log/samba/%m log level = 1 [guest] # This share allows anonymous (guest) access # without authentication! comment = Shared folder path = /home/Shared read only = no guest ok = yes guest only = yes su systemctl restart smb More on reddit.com