samba - Oct 2014 - Samba client 3.6.5 fails sending to MAC 0S 10.9.x Maverick server

I have been searching for weeks for information to our problem, trying to
connect our smbclient 3.6.5 to a MAC running 10.9.5 server, and I finally came
across the reason. It appears with Maverick, Apple will only accept SMB2 signed
signatures. The problem with the 3.6.5 client is, it never supported SMB2, thus
will not write the SMB2 signatures. I can add "client signing =
disabled" to the smb.conf file, but I don't want to restrict for all
servers, a device may talk to. Is there any workaround for 3.6.5, so I can be
flexible depending on the server ? Any help would be appreciated, even from
Apple if anyone has a contact. I've tried several, but have not received a
response.

Regards,
Mike

On Wed, Oct 29, 2014 at 06:23:26PM +0000, Tompkins, Michael
wrote:
> I have been searching for weeks for information to our problem, trying to
connect our smbclient 3.6.5 to a MAC running 10.9.5 server, and I finally came
across the reason. It appears with Maverick, Apple will only accept SMB2 signed
signatures. The problem with the 3.6.5 client is, it never supported SMB2, thus
will not write the SMB2 signatures. I can add "client signing =
disabled" to the smb.conf file, but I don't want to restrict for all
servers, a device may talk to. Is there any workaround for 3.6.5, so I can be
flexible depending on the server ? Any help would be appreciated, even from
Apple if anyone has a contact. I've tried several, but have not received a
response.
The 4.1.x client fully supports SMB2 signatures.

Did you back-port all the client code to 3.6.5 ?

You might want to extend the back-port to include
the SMB2 client signing.

Jeremy.