samba - Nov 2019 - Is it possible to re-share a SMB2 filesystem for SMB1 clients?

Hi everyone,

I'm having the following situation:

I need to migrate all SMB file services to a new appliance that only 
supports the SMB2+ protocol. Unfortunately, there are still some very 
old Linux clients ("modinfo cifs" says version 1.60) that do only
speak
SMB1 and need to access these shares after the migration.

Is it possible to have a Linux with a modern Samba implementation 
"re-sharing" the SMB2 shares for SMB1 clients?

Kind regards!
Alex

What is the appliance ?????? Some appliances will have a web-based 
interface where you can set sharing parameters.? if this is a 
Linux-based appliance you may even be able to ssh in and edit the samba 
config files.




On 11/20/19 12:07 PM, Alexander via samba wrote:
> Hi everyone,
>
> I'm having the following situation:
>
> I need to migrate all SMB file services to a new appliance that only 
> supports the SMB2+ protocol. Unfortunately, there are still some very 
> old Linux clients ("modinfo cifs" says version 1.60) that do only
> speak SMB1 and need to access these shares after the migration.
>
> Is it possible to have a Linux with a modern Samba implementation 
> "re-sharing" the SMB2 shares for SMB1 clients?
>
> Kind regards!
> Alex
>

On Wed, 2019-11-20 at 18:07 +0100, Alexander via samba
wrote:
> Hi everyone,
> 
> I'm having the following situation:
> 
> I need to migrate all SMB file services to a new appliance that only 
> supports the SMB2+ protocol. Unfortunately, there are still some very 
> old Linux clients ("modinfo cifs" says version 1.60) that do only
speak
> SMB1 and need to access these shares after the migration.
> 
> Is it possible to have a Linux with a modern Samba implementation 
> "re-sharing" the SMB2 shares for SMB1 clients?
The best suggestion with existing code is to have a VM that hosts a
current version of Samba (still supporting SMB1) and mounts a SMB2
share with mount.cifs. 

The other option, subject to development funding, if there is
sufficient demand, is that perhaps some folks in your situation could
revive the SMB2 proxy backend for the 'NTVFS' file server, which
currently has an SMB1 proxy.  That partially complete code was only
removed recently and perhaps could be brought back up to a level for
production use. 

This may be of some value for folks who are in your situation and help
us drop the SMB1 code in smbd.

Andrew Bartlett

-- 
Andrew Bartlett                       http://samba.org/~abartlet/
Authentication Developer, Samba Team  http://samba.org
Samba Developer, Catalyst IT          http://catalyst.net.nz/services/samba