[Samba] SMBx differences re Win10 in Samba4 NT4 DC

Rowland Penny rowlandpenny241155 at gmail.com
Mon Aug 31 18:02:30 UTC 2015

On 31/08/15 18:12, soonerdave wrote:
> Given an existing NT4 Samba 4 DC, a recently upgraded Win10 machine can no
> longer access NETLOGON to authenticate to the network. This lead to the
> research revealing that my Samba4 PDC SMB.CONF must be changed to limit MAX
> PROTOCOL = NT1 to avoid negotiating a version of SMB2 from Win10 that Samba4
> can't resolve.
> Doing this broke authentication via other resources that no longer support
> NT1, so am I correct in inferring that the only option at this point to get
> Win10 domain logins with a later version of SMB (greater than NT1) is by
> upgrading the domain to a full Samba AD DC?
> Lastly, could someone help me understand the subtlety between the dialect of
> SMB2/SMB3 Samba supports versus the variety Win10 is trying to negotiate,
> and why there is the disconnect? Put a different way, I don't understand
> exactly why Win10/Samba can't negotiate down to an SMB level both can use
> (well, one greater than NT1, I guess)

I think you are asking the wrong people, Samba came up with a way to use 
a windows 10 machine with an NT4-style domain, if I understand it right, 
you cannot do this with a windows NT4 domain.


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