Nautilus and SMB1

[Colin Law]

On 25 November 2017 at 02:11, Karl Auer <kauer at biplane.com.au> wrote:
> My Synology NAS allows control of which version of SMB it uses. When I
> tell it not to support SMB1, Nautilus stops working, and cannot mount
> shares off the NAS.
>
> I've researched the issue, and while I can find heaps of Samba-related
> tips, nothing about Nautilus.
>
> I used the Synology web interface to set the server protocol range to
> SMB2/SMB2: Nautilus could not mount shares.
>
> The Synology is using Samba under the hood. I edited its smb.conf
> directly and set "protocol=SMB2" and rebooted the Synology to make sure
> that all connections were closed. According to Wireshark, Nautilus was
> still using SMB1 (header marker byte 0xFF) thereafter.
>
> Edited smb.conf some more, this time setting "client min protocol" to
> SMB2 and leaving the server min/max at SMB2/SMB2. Nautilus could not
> mount shares ("Oops, something went wrong").

Were you doing that on the NAS or on the Ubuntu machine? I have not
come across this myself but google suggests the solution may be, on
the PC, in /etc/samba/smb.conf in the [global] section to put
client max protocol = SMB3
which allows the PC to use up to smb3. Note max protocol, not min protocol.

Colin