Dell Unity: Cómo deshabilitar el protocolo SMB2 en el servidor NAS de CIFS.

Summary: 1. Deshabilite el protocolo SMB2 en el servidor NAS de CIFS. 2. Habilite el protocolo SMB3 solo en el servidor NAS de CIFS.

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Instructions

Desde Unity OE 5.4, se introdujo un nuevo parámetro "cifs.smb2.smb3only" para habilitar/deshabilitar el protocolo SMB2 en el servidor NAS de CIFS.

1. Cuando se configura cifs.smb2.smb3only=0 (valor predeterminado), el protocolo SMB2 está habilitado en el servidor NAS de CIFS. El cliente NAS de CIFS se puede acceder mediante el cliente SMB2 y el cliente SMB3.

root@vsa0 spa:/cores/service/user# svc_nas nas01 -param -f cifs -i smb2.smb3only -v

nas01 :
name                    = smb2.smb3only
facility_name           = cifs
default_value           = 0
current_value           = 0
configured_value        = 0
param_type              = NAS server
user_action             = none
change_effective        = immediate
range                   = (0,1)
description             = Specifies if SMB2 2XX dialects are disabled.

detailed_description
This parameter allows the disabling of SMB2 2XX dialects (SMB2.0/SMB2.0.2, SMB2.1 and SMB2.2). SMB2 is not disabled by default, as the default value is set to 0. Note: The SMB clients must disconnect all the SMB server shares in order to negotiate the appropriate dialect after modifying this parameter.

2. Cuando se configura cifs.smb2.smb3only=1 (valor predeterminado), el protocolo SMB2 se deshabilita en el servidor NAS de CIFS. Solo el cliente SMB3 puede acceder al servidor NAS de CIFS.

root@vsa0 spa:/cores/service/user# svc_nas nas01 -param -f cifs -i smb2.smb3only -v

nas01 :
name                    = smb2.smb3only
facility_name           = cifs
default_value           = 0
current_value           = 0
configured_value        = 0
param_type              = NAS server
user_action             = none
change_effective        = immediate
range                   = (0,1)
description             = Specifies if SMB2 2XX dialects are disabled.

detailed_description
This parameter allows the disabling of SMB2 2XX dialects (SMB2.0/SMB2.0.2, SMB2.1 and SMB2.2). SMB2 is not disabled by default, as the default value is set to 0. Note: The SMB clients must disconnect all the SMB server shares in order to negotiate the appropriate dialect after modifying this parameter.

3. Cómo modificar cifs.smb2.smb3only

root@vsa0 spa:/cores/service/user# svc_nas nas01 -param -f cifs -m smb2.smb3only -v 1

nas01 : done

Nota: Este es un parámetro en el nivel del servidor NAS y, una vez que se cambie, entrará en vigor de inmediato.

 

 

 

Affected Products

Dell EMC Unity Family |Dell EMC Unity All Flash

Products

Dell EMC Unity Hybrid, Dell Unity Operating Environment (OE), Dell EMC UnityVSA Professional Edition/Unity Cloud Edition
Article Properties
Article Number: 000313042
Article Type: How To
Last Modified: 29 Apr 2025
Version:  1
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