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Copy file name to clipboardExpand all lines: articles/azure-netapp-files/configure-unix-permissions-change-ownership-mode.md
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title: Configure Unix permissions and change ownership mode for Azure NetApp Files NFS and dual-protocol volumes | Microsoft Docs
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description: Describes how to set the Unix permissions and the change ownership mode options for Azure NetApp Files NFS and dual-protocol volumes.
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title: Configure Unix permissions and change ownership mode for Azure NetApp Files NFS and dual-protocol volumes
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description: Learn how to set the Unix permissions and the change ownership mode options for Azure NetApp Files NFS and dual-protocol volumes.
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services: azure-netapp-files
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author: b-hchen
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ms.service: azure-netapp-files
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ms.topic: how-to
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ms.date: 02/28/2023
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ms.date: 04/25/2025
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ms.author: anfdocs
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---
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# Configure Unix permissions and change ownership mode for NFS and dual-protocol volumes
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## Change ownership mode
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The change ownership mode (**`Chown Mode`**) functionality enables you to set the ownership management capabilities of files and directories. You can specify or modify the setting under a volume's export policy. Two options for **`Chown Mode`** are available:
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The change ownership mode (**`Chown Mode`**) functionality enables you to set the ownership management capabilities of files and directories. You can specify or modify the setting under a volume's export policy. Two options for **`Chown Mode`** are available:
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*`Restricted` (default) - Only the root user can change the ownership of files and directories.
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*`Unrestricted` - Non-root users can change the ownership for files and directories that they own.
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## Considerations
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* The Unix permissions you specify apply only for the volume mount point (root directory).
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* You can modify the Unix permissions on the source volume *but not on the destination volume* that is in a cross-region replication configuration.
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* You can modify the Unix permissions on the source volume *but not the destination volume* that is in a replication configuration.
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## Steps
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## Set Unix permissions for new volumes
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1. You can specify the **Unix permissions** and change ownership mode (**`Chown Mode`**) settings under the **Protocol** tab when you [create an NFS volume](azure-netapp-files-create-volumes.md) or [create a dual-protocol volume](create-volumes-dual-protocol.md).
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The following example shows the Create a Volume screen for an NFS volume.
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The following example shows the Create a volume screen for an NFS volume.
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2. For existing NFS or dual-protocol volumes, you can set or modify **Unix permissions** and **change ownership mode** as follows:
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## Set Unix permissions for existing volumes
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1. To modify Unix permissions, right-click the **volume**, and select **Edit**. In the Edit window that appears, specify a value for **Unix Permissions**.
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For existing NFS or dual-protocol volumes, you can set or modify **Unix permissions** and **change ownership mode** as follows:
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2. To modify the change ownership mode, click the **volume**, click **Export policy**, then modify the **`Chown Mode`** setting.
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1. To modify Unix permissions, right-click the **volume**, and select **Edit**. In the Edit window that appears, specify a value for **Unix Permissions**.
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2. To modify the change ownership mode, select the **volume**, click **Export policy** then modify the **`Chown Mode`** setting.
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