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June 2020

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From:
Mark Rousell <[log in to unmask]>
Reply To:
Mark Rousell <[log in to unmask]>
Date:
Thu, 11 Jun 2020 20:52:57 +0000
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(I've been forced to post this via the Outlook.com web UI. It's vile. Sorry.)

On 11/06/2020 15:34, Larry Linder wrote:
> When I did a search on the internet for the problem.  There were a
> number of reports from other distributions of linux 6.10 with the same
> problem.
>
> I tried their recommended fix but did not work.
> They added aline into smb.conf.
>    client max protocol = NT1  
>
> They also indicated that windows 10 had an issue with samba.  Several of
> our laptops running a stripped Windows 10 can see the server but not
> now.

I don't know if this will be helpful to you here and now but here goes. I believe that the "client max protocol = NT1" line limits the SMB version to 1. However, SMB1 is now deprecated in Windows 10[1]. So, with a current default Windows 10 configuration combined with "client max protocol = NT1" in your smb.conf files, your Linux and Windows boxes won't be able to talk to each other. Furthermore, Samba itself is in the process of deprecating SMB1 with a view to removing it entirely in due course, if I remember correctly.

Ideally you should force a higher version of SMB in Samba such as SMB2 or SMB3 (as long as all your Linuxes have an up to date Samba).

Alternatively you can force install SMB1 in your Windows 10 boxes but this is definitely not recommended[2].

To re-enable SMB1 in Windows 10, use the 'Turn Windows features on or off' tool to re-enable it. You can separately enable or disable SMB1 client and server modes in W10. You can also do it at the command line via PowerShell if you wish (Google for instructions).




Footnotes:-
1: 'SMBv1 is not installed by default in Windows 10 version 1709, Windows Server version 1709 and later versions' <https://urldefense.proofpoint.com/v2/url?u=https-3A__docs.microsoft.com_en-2Dus_windows-2Dserver_storage_file-2Dserver_troubleshoot_smbv1-2Dnot-2Dinstalled-2Dby-2Ddefault-2Din-2Dwindows&d=DwIFAw&c=gRgGjJ3BkIsb5y6s49QqsA&r=gd8BzeSQcySVxr0gDWSEbN-P-pgDXkdyCtaMqdCgPPdW1cyL5RIpaIYrCn8C5x2A&m=8tLnfJdnm9I4uvfP0XWTx2vI6oQ360TWyjNQPr79ins&s=iCgCozNHNCB_hwQriLYkqLecMsc4Z7tzZUXEHVHmeuE&e= >

2: 'Stop using SMB1' <https://urldefense.proofpoint.com/v2/url?u=https-3A__techcommunity.microsoft.com_t5_storage-2Dat-2Dmicrosoft_stop-2Dusing-2Dsmb1_ba-2Dp_425858&d=DwIFAw&c=gRgGjJ3BkIsb5y6s49QqsA&r=gd8BzeSQcySVxr0gDWSEbN-P-pgDXkdyCtaMqdCgPPdW1cyL5RIpaIYrCn8C5x2A&m=8tLnfJdnm9I4uvfP0XWTx2vI6oQ360TWyjNQPr79ins&s=sP26YsxMu-qx_Qpp1rWgedjD4rWIksHVf2_hcM1b-xw&e= >

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