[Samba] Samba client doesn't work SMB2 with MAC 0S 10.9.5

Tompkins, Michael Michael.Tompkins at xerox.com
Tue Sep 30 04:16:46 MDT 2014

Jeremy, we have implemented your updates for to support SMB2 in both 3.6.5 and 4.0.7. That is working fine for both, with the exception of MAC OS 10.9..5 servers. There is a lot of discussion on the web about the problems, and most people talk about a workaround to dummy down to SMB1(NT1), which really is not a desirable option, especially for FIPS support. Was there a specific fix to so the smbclient and the MAC OS 10.9.5 server work together?  That's the information we are looking for.

- Mike

-----Original Message-----
From: Jeremy Allison [mailto:jra at samba.org] 
Sent: Monday, September 29, 2014 3:13 PM
To: Tompkins, Michael
Cc: Ralph Böhme; samba at lists.samba.org; USA Xerox Samba
Subject: Re: [Samba] Samba client doesn't work SMB2 with MAC 0S 10.9.5

On Mon, Sep 29, 2014 at 05:29:44PM +0000, Tompkins, Michael wrote:
> It is when our smbclient tries to connect to a MAC OS 10.9.5 samba server ?
> It seems they now have implemented their own SMB2 stack, in 10.9 which 
> does not play well with Microsoft’s implementation. The current 
> workaround is only to use SMB1 which is slow and has security issues. 
> In 4.0.7 we can set client max protocol to NT1, but in 3.6.5 client, it does not support client max protocol.

Mike, I fixed this for you for 4.1.x, creating the infrastructure layer to allow the unchanged smbclient code to use SMB2/2 under the covers.

In order to get a back port to 3.6.x, this is when Xerox needs to pay a contractor I'm afraid (or do the engineering work yourself, which I'll be happy to help with :-).

There are limits to what can be supported for free from the Team, and this is over that limit, sorry.


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