NTLM client authentication is done using a challenge response protocol based on shared knowledge of a user-specific secret based on a password. If a user creates an SMB connection using a local Windows user account, authentication …

2024年7月5日 · Domain Controller may record following event ID 5838 as Error. The Netlogon service encountered a client using RPC signing instead of RPC sealing. We can run below command on Domain Controller to check for event ID 5838. How to workaround impact seen after applying CVE-2022-38023 on domain controllers after June 13 2023.

ntlm 客户端身份验证可使用质询响应协议来完成，该协议基于密码共享用户特定的机密信息。 如果用户使用本地 Windows 用户帐户创建 SMB 连接，则 CIFS 服务器会使用 NTLMv2 在本地完成身份验证。

Before users can create SMB connections to access data contained on the SVM, they must be authenticated by the domain to which the SMB server belongs. The SMB server supports two authentication methods, Kerberos and NTLM (NTLMv1 or NTLMv2). Kerberos is the default method used to authenticate domain users.

2021年8月24日 · Our security team wants to turn off NTLM on our NetApp NAS. From reading the KB below and verifying, our setting is set at the default which accepts everything listed from the article. We want to allow NTLMv2 and Kerberos.

In summary, an SMB client prefers Kerberos when supported and properly configured; otherwise, it uses NTLM authentication. To limit the SMB server to only use Kerberos, it is possible to limit it via the LM-COMPATABILITY setting.

NetApp recommends using the NTLM authentication function with CIFS workgroups to maintain your organization's security posture. To validate the CIFS security posture, NetApp recommends using the vserver cifs session show command to display numerous posture-related details, including IP information, the authentication mechanism, the protocol ...

6 天之前 · Clients requiring NTLM authentication lose access to ONTAP Expand/collapse global location ... NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the ...

解决方法 1 ： NetApp 建议升级到 8.2.5P5 引入了一个新选项，用于支持安全 Netlogon （ cifs.netlogon.secure_channel.enable ） 此选项的范围为 vFiler 。

ntlm身份验证失败、 internal_error 域控制器会发送tcp重置以响应smb协商协议请求。 示例： 从Vserver/SVM到域控制器(DC)的数据包跟踪摘录 1.