[HOW TO] Fix authentication problem for older clients in XigmaNAS

[isoellias]

Hello,
I would like to contribute to the forum with this little How To.
When you set up a default samba share, it may not be accessible to other platforms. Type FreeBSD client, Linux or even some older Windows.

Error:

Client FreeBSD:

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mount_smbfs -I <ip-host> -U <user> //<netbios-name>/<share> /mnt/bkp
Password: ********
mount_smbfs: unable to open connection: syserr = Authentication error

Client Linux

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mount -v -t cifs //<ip-host>/<share> /mnt/bkp -o username=<user>, password=<*******>, noperm
mount error 13 = Permission denied
Refer to the mount.cifs (8) manual page (e.g.man mount.cifs)

This must be due to the evolution of the smb protocol. Because of this, older systems may not support "NTLMv2" authentication.

To remedy this problem add these two parameters to: "Additional Parameters [Global]" (SERVICES>CIFS/SMB)

xigmanas_smb_ntlmv2.PNG

Thankful!

[sleid]

README XigManas:

cifs/smb note:
==============
From Samba 4.5.0 and up the default value for the "ntlm auth" option is changed from "yes" to "no".
This may have impact on very old clients which doesn't support NTLMv2 yet.
Only if you really need NTLMv1 Authentication you can set in Services > CIFS/SMB > Settings on
Additional Parameters: "ntlm auth = yes".

[isoellias]

Good Morning!
Thank you for your contribution in bringing this official information.
I believe that just putting this flag "ntlm auth = yes" already shows result. Because it is likely that more modern customers will use "NTLMv2".
Thankful.

[sleid]

2018 december