samba - Jul 2021 - CIFS share disconnects on Linux client, but is still accessible via SMBCLIENT

Thanks. I added *vers=1.0 *to the mount line in fstab and it doesn't 
help. Of course I can't be sure SMB1 is actually being used. And isn't 
SMB1 insecure?

In fact, with no "vers=" option or with "vers=2.0" or with
"vers=1.0"
the share mounts fine at boot. But it disappears after around 20 
minutes. Yet it remains accessible via smbclient...


On 15/07/2021 15:26, L.P.H. van Belle wrote:
> You might need to provide the option vers=1.0 option to the mount command
to force version SMB1
>
> Greetz,
>
> Louis
>
>> -----Oorspronkelijk bericht-----
>> Van: samba [mailto:samba-bounces at lists.samba.org] Namens
>> Lestrad via samba
>> Verzonden: donderdag 15 juli 2021 14:46
>> Aan: samba at lists.samba.org
>> Onderwerp: [Samba] CIFS share disconnects on Linux client,
>> but is still accessible via SMBCLIENT
>>
>> Hello. My Wandboard running Arch Linux ARM mounts a cifs
>> share hosted on
>> a Windows 7 machine at boot. After a certain amount of time the
>> connection to the share is lost. I can cd to the mount point
>> directory,
>> but when I run ls I get the error message: "cannot open
>> directory '.':
>> Host is down". If I unmount the mount directory and try to
>> remount the
>> share, I get a "mount error(2): No such file or directory"
error.
>>
>> However, I can still connect to the share using smbclient. And if I
>> reboot the Linux box the share again mounts with no problem.
>> But after a
>> time it becomes inaccessible again.
>>
>> I've tried several different things on the Windows machine,
including
>> enabling and disabling SMB v1 and trying all the possible
>> settings for
>> the NIC (Intel with the latest driver) and for Windows share
>> permissions. But the problem must involve Linux, since the
>> share remains
>> available via smbclient and mounts with no problem when I
>> reboot. I've
>> updated samba to the latest version and enabled winbind. I'm not
sure
>> what else to try.
>>
>> Any help would be appreciated. I can provide any information anyone
>> might need.
>>
>> TIA
>> Les
>>
>> Arch Linux ARM version 5.7.2-1-ARCH
>> samba v 4.12.3
>> CIFS v 2.26
>> mount.cifs v 6.10
>>
>>
>> -- 
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>>
>
>

On Fri, 2021-07-16 at 16:04 +0200, Gene Poole via samba
wrote:
> Thanks. I added *vers=1.0 *to the mount line in fstab and it doesn't 
> help. Of course I can't be sure SMB1 is actually being used. And
> isn't 
> SMB1 insecure?
> 
> In fact, with no "vers=" option or with "vers=2.0" or
with
> "vers=1.0" 
> the share mounts fine at boot. But it disappears after around 20 
> minutes. Yet it remains accessible via smbclient...
> 
It might help if you posted your smb.conf and mount command.

Rowland