Dell Unity:CIFS NASサーバーでSMB2プロトコルを無効にする方法。
Summary: 1.CIFS NASサーバーでSMB2プロトコルを無効にします。 2.SMB3プロトコルはCIFS NASサーバーでのみ有効にします。
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Instructions
Unity OE 5.4から、CIFS NASサーバーでSMB2プロトコルを有効/無効にするために、新しいパラメーターcifs.smb2.smb3onlyが導入されました。
1. set cifs.smb2.smb3only=0(デフォルト)の場合、SMB2プロトコルはCIFS NASサーバーで有効になります。CIFS NASサーバーには、SMB2クライアントとSMB3クライアントからアクセスできます。
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. 「cifs.smb2.smb3only=1」(デフォルト)と設定すると、SMB2プロトコルはCIFS NASサーバーで無効になります。CIFS NASサーバーにはSMB3クライアントのみがアクセスできます。
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.cifs.smb2.smb3onlyを変更する方法
root@vsa0 spa:/cores/service/user# svc_nas nas01 -param -f cifs -m smb2.smb3only -v 1
nas01 : done
メモ: これはNASサーバー レベルのパラメーターであり、変更するとすぐに有効になります。
Affected Products
Dell EMC Unity Family |Dell EMC Unity All FlashProducts
Dell EMC Unity Hybrid, Dell Unity Operating Environment (OE), Dell EMC UnityVSA Professional Edition/Unity Cloud EditionArticle Properties
Article Number: 000313042
Article Type: How To
Last Modified: 29 Apr 2025
Version: 1
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