Steelhead Appliance Installation and Configuration Guide
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Disabling SMB Signing
Installing and Configuring the Steelhead Appliance
Important:
If your deployment requires SMB signing, you can optimize signed CIFS messages by selecting Enable
SMB Signing
in the Optimization - CIFS page. Before you enable SMB Signing, make sure you disable
Optimize Connections with Security Signatures
. For detailed information about enabling SMB signing,
including procedures for your Windows server, see the Steelhead Management Console User’s Guide.
Disabling SMB Signing Using Active Directory
If the Secure-CIFS feature does not disable SMB signing, you must revise the default SMB registry
parameters. SMB signing is controlled by the following registry parameters:
enablesecuritysignature (SSEn)
requiresecuritysignature (SSReq)
The registry settings are located in:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lanmanserver\parameters
The following table summarizes the default SMB signing registry parameters.
With these default registry parameters, SMB signing is negotiated in the following manner:
SMB/CIFS exchanges between the Client/Workstation and the Member Server are not signed.
SMB/CIFS exchanges between the Client/Workstation and the Domain Controller are always signed.
Machine Role
SSEn
SSReq
Client/Workstation
ON
OFF
Member Server
OFF
OFF
Domain Controller
ON
ON