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# SMB/CIFS

ownCloud can connect to Windows file servers or other SMB-compatible servers with the SMB/CIFS backend.

Note

ownCloud’s SMB/CIFS backend requires either the libsmbclient-php module (version 0.8.0+) or the smbclient command (and its dependencies) to be installed on the ownCloud server. We highly recommend libsmbclient-php, but it isn’t required. If installed, however, smbclient won’t be needed. Most Linux distributions provide libsmbclient-php and, typically, name it `php-smbclient`.

You also need the Samba client installed on your Linux system. This is included in all Linux distributions; on Debian, Ubuntu, and other Debian derivatives this is `smbclient`. On SUSE, Red Hat, CentOS, and other Red Hat derivatives it is `samba-client`. You also need `which` and `stdbuf`, which should be included in most Linux distributions.

You need the following information:

- Folder name for your local mountpoint.
- Host: The URL of the Samba server.
- Username: The username or domain/username used to login to the Samba server.
- Password: the password to login to the Samba server.
- Share: The share on the Samba server to mount.
- Remote Subfolder: The remote subfolder inside the Samba share to mount (optional, defaults to /). To assign the ownCloud logon username automatically to the subfolder, use `$user` instead of a particular subfolder name.
- And finally, the ownCloud users and groups who get access to the share.

Optionally, you can specify a `Domain`. This is useful in cases where the SMB server requires a domain and a username, and an advanced authentication mechanism like session credentials is used so that the username cannot be modified. This is concatenated with the username, so the backend gets `domain\username`

See Configuring External Storage (GUI) for additional mount options and information.

See External Storage Authentication mechanisms for more information on authentication schemes.

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