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Dell PowerStore Configuring Multiprotocol File Sharing

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Security on file system objects

In a multiprotocol environment, security policy is set at the file system level, and is independent for each file system. Each file system uses its access policy to determine how to reconcile the differences between NFS and SMB access control semantics. Selecting an access policy determines which mechanism is used to enforce file security on the particular file system.

The default setting of native security maintains two separate sets of permissions for each file and the protocol that is used to access the file determines which permission set is checked. If the SMB protocol is used, ACLs are checked. If the NFS protocol is used, NFSv3 mode bits or NFSv4 ACL are checked.

NOTE:Client access using the SMB1 protocol is disabled by default, due to potential security vulnerabilities. If client access using SMB1 is required, you can enable it by modifying the cifs.smb1.disabled parameter. It is recommended to use SMB2 at a minimum for enhanced security and increased efficiency.

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