1 <?xml version="1.0" encoding="iso-8859-1"?>
2 <!DOCTYPE refentry PUBLIC "-//Samba-Team//DTD DocBook V4.2-Based Variant V1.0//EN" "http://www.samba.org/samba/DTD/samba-doc">
3 <refentry id="vfs_snapper.8">
6 <refentrytitle>vfs_snapper</refentrytitle>
7 <manvolnum>8</manvolnum>
8 <refmiscinfo class="source">Samba</refmiscinfo>
9 <refmiscinfo class="manual">System Administration tools</refmiscinfo>
10 <refmiscinfo class="version">&doc.version;</refmiscinfo>
15 <refname>vfs_snapper</refname>
17 Expose snapshots managed by snapper as shadow-copies
23 <command>vfs objects = snapper</command>
28 <title>DESCRIPTION</title>
30 <para>This VFS module is part of the
31 <citerefentry><refentrytitle>samba</refentrytitle>
32 <manvolnum>8</manvolnum></citerefentry> suite.</para>
35 The <command>vfs_snapper</command> VFS module exposes snapshots
36 managed by snapper for use by Samba. This provides the ability
37 for remote SMB clients to access shadow-copies via Windows
38 Explorer using the "previous versions" dialog.
42 Snapshots can also be created and remove remotely, using the
43 File Server Remote VSS Protocol (FSRVP). Snapshot creation and
44 deletion requests are forwarded to snapper via DBus.
48 This module is stackable.
53 <title>CONFIGURATION</title>
56 The underlying share path must have a corresponding snapper
57 configuration file. The snapshot directory tree must allow
58 access for relevant users.
62 <smbconfsection name="[share]"/>
63 <smbconfoption name="vfs objects">snapper</smbconfoption>
67 For remote snapshot creation and deletion, Samba's FSRVP
68 server must be configured in the [global] section:
72 <smbconfsection name="[global]"/>
73 <smbconfoption name="registry shares">yes</smbconfoption>
74 <smbconfoption name="include">registry</smbconfoption>
79 <title>PERMISSIONS</title>
81 Snapper stores snapshots under a .snapshots subdirectory. This
82 directory must permit traversal for any users wishing to access
83 snapshots via the Windows Explorer previous versions dialog.
84 By default, traversal is forbidden for all non-root users.
85 Additionally, users must be granted permission to list snapshots
86 managed by snapper, via snapper's ALLOW_USERS or ALLOW_GROUPS
87 options. Snapper can grant these users and groups .snapshots
88 traversal access automatically via the SYNC_ACL option.
91 Remote snapshot creation and deletion is only permitted by Samba
92 for Active Directory administrators, backup operators, or users
93 explicitly granted SeBackupPrivilege. Snapper must also permit
94 creation and deletion for the appropriate user, via snapper's
95 ALLOW_USERS or ALLOW_GROUPS options.
98 The DiskShadow.exe FSRVP client initially authenticates as the
99 Active Directory computer account. This account must therefore
100 be granted the same permissions as the user account issuing the
101 snapshot creation and deletion requests.
106 <title>VERSION</title>
109 This man page is part of version &doc.version; of the Samba suite.
114 <title>AUTHOR</title>
116 <para>The original Samba software and related utilities
117 were created by Andrew Tridgell. Samba is now developed
118 by the Samba Team as an Open Source project similar
119 to the way the Linux kernel is developed.</para>