[Samba] Windows 10 cannot connect without SMB1

[Rowland penny]

On 28/02/2021 03:47, K. R. Foley via samba wrote:
> Hi,
>
> I cannot get Windows 10 to connect to my Samba server without SMB1.
>
>
> I get the following error when I try to join Windows 10 client to 
> Samba 4.11.13 AD. I get the following error on the client:
>
> "The following error occurred attempting to join the domain 
> 'local.richardshapiro.com':
>
> You can't connect to the file share because it's not secure. This 
> share requires the obsolete SMB1 protocol, which is unsafe and could 
> expose your system to attack. Your system requires SMB2 or higher. For 
> more info on resolving this issue, see 
> https://go.microsoft.com/fwlink/?linkid=852747"
>
>
> I get  the following on the server:
>
> "Feb 27 20:43:06 ss-prod smbd[7323]: [2021/02/27 20:43:06.043958, 0, 
> pid=7323, effective(0, 0), real(0, 0)] 
> ../../source3/smbd/negprot.c:593(reply_negprot)
> Feb 27 20:43:06 ss-prod smbd[7323]:  negprot got no protocols"
>
>
> If I enable SMB1 on the Windows  10 client it can join the domain just 
> fine. Without SMB1, it fails every time. I have tried numerous Samba 
> configuration options on the Samba server, but none work.
>
> Server info:
>
> CentOS Linux release 7.9.2009
>
> [root at ss-prod packages]# uname -a
> Linux ss-prod.rsa.richardshapiro.com 3.10.0-1160.15.2.el7.x86_64 #1 
> SMP Wed Feb 3 15:06:38 UTC 2021 x86_64 x86_64 x86_64 GNU/Linu
>
> Samba 4.11.13 built from source
>
> I have tried numerous options on the server:
>
>         server max protocol = SMB2
>         #min protocol = SMB2
> #       min protocol = SMB2
> #       server min protocol = NT1
>         #server min protocol = SMB2_10
>         #server max protocol = SMB3
>         #protocol = SMB
>
>
> Shouldn't 4.11.13 support SMB2 or higher?
>
It does, can you post your smb.conf

Rowland