[Samba] Allow only one computer SMB v1

Rowland Penny rpenny at samba.org
Tue Jun 29 20:29:53 UTC 2021

On Tue, 2021-06-29 at 16:18 -0400, Nick Couchman wrote:
> If I understand the question correctly, I believe Stephen is asking
> if you could limit support for SMBv1 to a single client, allowing
> only that client to talk to the Samba server with SMBv1, while
> forcing all other computers to talk with SMBv2/3, etc.
> My thought is you could possibly do this using the include directive
> in the smb.conf file to include a per-machine configuration file,
> perhaps based on IP address. Something like this:
> include = /etc/samba/clients/%I.conf
> You could then have a configuration file specifically for that
> machine that would lower the SMB protocol level down to 1, and all
> other machines could use the default.
> I might be off on that, it isn't something I've tried, but Samba's
> support for configuration includes and variable substitutions gives
> you some very flexible, very powerful options.

Yes, but if all the other computers were using SMBv2 (at a minimum) how
could they 'talk' to the computer that only used SMBv1 and how could it
'talk' to them ?

Look at it this way, there are 20 people in a room, 19 only speak
English and one only speaks French (or any language that isn't a
variant of English), 19 people will understand each other, but the one
person that doesn't speak English will not understand the other 19 and
they will not understand the one.


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