| 1 | '\" t
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| 2 | .\" Title: vfs_snapper
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| 3 | .\" Author: [see the "AUTHOR" section]
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| 4 | .\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
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| 5 | .\" Date: 10/25/2016
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| 6 | .\" Manual: System Administration tools
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| 7 | .\" Source: Samba 4.4
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| 8 | .\" Language: English
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| 9 | .\"
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| 10 | .TH "VFS_SNAPPER" "8" "10/25/2016" "Samba 4\&.4" "System Administration tools"
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| 11 | .\" -----------------------------------------------------------------
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| 12 | .\" * Define some portability stuff
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| 13 | .\" -----------------------------------------------------------------
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| 14 | .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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| 15 | .\" http://bugs.debian.org/507673
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| 16 | .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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| 17 | .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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| 18 | .ie \n(.g .ds Aq \(aq
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| 21 | .\" * set default formatting
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| 27 | .\" -----------------------------------------------------------------
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| 28 | .\" * MAIN CONTENT STARTS HERE *
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| 29 | .\" -----------------------------------------------------------------
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| 30 | .SH "NAME"
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| 31 | vfs_snapper \- Expose snapshots managed by snapper as shadow\-copies
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| 32 | .SH "SYNOPSIS"
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| 33 | .HP \w'\ 'u
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| 34 | vfs objects = snapper
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| 35 | .SH "DESCRIPTION"
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| 36 | .PP
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| 37 | This VFS module is part of the
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| 38 | \fBsamba\fR(8)
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| 39 | suite\&.
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| 40 | .PP
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| 41 | The
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| 42 | vfs_snapper
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| 43 | VFS module exposes snapshots managed by snapper for use by Samba\&. This provides the ability for remote SMB clients to access shadow\-copies via Windows Explorer using the "previous versions" dialog\&.
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| 44 | .PP
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| 45 | Snapshots can also be created and remove remotely, using the File Server Remote VSS Protocol (FSRVP)\&. Snapshot creation and deletion requests are forwarded to snapper via DBus\&.
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| 46 | .PP
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| 47 | This module is stackable\&.
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| 48 | .SH "CONFIGURATION"
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| 49 | .PP
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| 50 | The underlying share path must have a corresponding snapper configuration file\&. The snapshot directory tree must allow access for relavent users\&.
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| 51 | .sp
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| 52 | .if n \{\
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| 53 | .RS 4
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| 54 | .\}
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| 55 | .nf
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| 56 | \fI[share]\fR
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| 57 | \m[blue]\fBvfs objects = snapper\fR\m[]
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| 58 |
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| 59 | .fi
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| 60 | .if n \{\
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| 61 | .RE
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| 62 | .\}
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| 63 | .PP
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| 64 | For remote snapshot creation and deletion, Samba\*(Aqs FSRVP server must be configured in the [global] section:
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| 65 | .sp
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| 66 | .if n \{\
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| 67 | .RS 4
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| 68 | .\}
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| 69 | .nf
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| 70 | \fI[global]\fR
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| 71 | \m[blue]\fBrpc_daemon:fssd = fork\fR\m[]
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| 72 | \m[blue]\fBregistry shares = yes\fR\m[]
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| 73 | \m[blue]\fBinclude = registry\fR\m[]
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| 74 |
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| 75 | .fi
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| 76 | .if n \{\
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| 77 | .RE
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| 78 | .\}
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| 79 | .SH "PERMISSIONS"
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| 80 | .PP
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| 81 | Snapper stores snapshots under a \&.snapshots subdirectory\&. This directory must permit traversal for any users wishing to access snapshots via the Windows Explorer previous versions dialog\&. By default, traversal is forbidden for all non\-root users\&. Additionally, users must be granted permission to list snapshots managed by snapper, via snapper\*(Aqs ALLOW_USERS or ALLOW_GROUPS options\&. Snapper can grant these users and groups \&.snapshots traversal access automatically via the SYNC_ACL option\&.
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| 82 | .PP
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| 83 | Remote snapshot creation and deletion is only permitted by Samba for Active Directory administrators, backup operators, or users explicitly granted SeBackupPrivilege\&. Snapper must also permit creation and deletion for the appropriate user, via snapper\*(Aqs ALLOW_USERS or ALLOW_GROUPS options\&.
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| 84 | .PP
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| 85 | The DiskShadow\&.exe FSRVP client initially authenticates as the Active Directory computer account\&. This account must therefore be granted the same permissions as the user account issuing the snapshot creation and deletion requests\&.
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| 86 | .SH "VERSION"
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| 87 | .PP
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| 88 | This man page is correct for version 4\&.3\&.0 of the Samba suite\&.
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| 89 | .SH "AUTHOR"
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| 90 | .PP
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| 91 | The original Samba software and related utilities were created by Andrew Tridgell\&. Samba is now developed by the Samba Team as an Open Source project similar to the way the Linux kernel is developed\&.
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