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Re: mount.cifs not working anymore

On Tue, 7 Nov 2017 17:57:06 +0100
Erwan David <erwan@rail.eu.org> wrote:

> I am not sure I tested it since I upgraded from Jessie to stretch :
> I have the following entry in my fstab
> //mafreebox.freebox.fr/Disque\040Dur /mnt/Fbx cifs 
> noauto,users,rw,credentials=/etc/fbx-passwd,uid=erdavid      
> 0               0
> It used to work, now it says :
> @bibi:~ % mount /mnt/Fbx
> mount error(112): Host is down
> Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
> Using smb:// in dolphin works, so the smb server is still working.
> What can be the reason ?

I believe it is a matter of SMB protocol, modern versions of samba
refusing to use the insecure protocol 1 unless kicked hard. You can
force it to do so, with vers=1.0 as an option in /etc/fstab, though you
should probably switch your samba shares to a later protocol. It was
SMB1.0 which wannacry exploited.

If they're still on wheezy (samba 2.3) this is not possible, it cannot
use protocol 2.0 or later. I'm preparing to upgrade a wheezy server, so
I'm in the position of trying to get a very mixed network to still see
samba 2.3 while being ready for jessie, then stretch servers with
minimal mucking about. A real can o' worms...


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