[Samba] Windows 10 cannot connect without SMB1

[K. R. Foley]

On 3/1/21 11:52 AM, Rowland penny via samba wrote:
> On 01/03/2021 17:18, K. R. Foley wrote:
>>
>> On 3/1/21 11:06 AM, Rowland penny via samba wrote:
>>> On 01/03/2021 16:29, K. R. Foley wrote:
>>>>
>>>> Is there a way to run a command  on the server (ie. smbclient) that 
>>>> will tell what protocols are supported?
>>>>
>>>
>>> Easiest way would be to run on the DC:
>>>
>>> smbclient -L localhost -N
>>>
>>> The last line of the output should be:
>>>
>>> SMB1 disabled -- no workgroup available
>>>
>>> I wonder if your problem is down to a lack of encryption ? Try 
>>> adding 'smb encrypt = enabled' to the smb.conf on the DC.
>>>
>>> After this, I am running out of ideas.
>>>
>>> Rowland
>>>
>>>
>> Yes. I had already tried that. See below.
>>
>> [root at ss-prod kr]# smbclient -L localhost -N
>>
>> Anonymous login successful
>>
>>     Sharename       Type      Comment
>>     ---------       ----      -------
>>     sysvol          Disk
>>     netlogon        Disk
>>     IPC$            IPC       IPC Service (Samba 4.11.13)
>> SMB1 disabled -- no workgroup available
>
>
> Well at least it shows that your DC is not using SMBv1, so why does 
> your Windows client think it is ?
>
>>
>>
>> Additionally, I also tried adding 'smb encrypt = enabled'. No change.
>
> It was just a thought.
>
> I think this is looking like a dns problem on your Windows client or 
> at least a Windows problem. You have this in the log you posted:
>
> NetUseAdd to \\ss-prod.local.richardshapiro.com\IPC$ returned 384
>
> IPC$ is a hidden Samba share that is required for Samba to function 
> and '384' means it isn't secure.
>
> Try running this on the DC: smbclient //ss-prod/IPC$ -UAdministrator
>
> After entering the password, you should find yourself at a prompt:
>
> Try "help" to get a list of possible commands.
> smb: \>
>
> Press 'q'  to exit
>
> Rowland
>
This works. So that would seem to imply that the server works with SMB2, 
since the default client protocol is  SMB2_02, right?

kr