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== ShadowCopy ==
== ShadowCopy ==
ShadowCopy takes a snapshot of ibays and user home folders at scheduled intervals and allows network users to restore previous versions of files via the Windows Explorer file properties page.
This Howto is based on information contained in [[bugzilla:1549]].
This works for Windows XP and above.
To obtain a client for Windows 2000SP3+ download from [http://technet.microsoft.com/en-gb/windowsserver/bb405951.aspx here].
To obtain a client for Windows 2000SP3+ download from [http://technet.microsoft.com/en-gb/windowsserver/bb405951.aspx here].
==='''Configuration'''===
===RPM version requirements===
This functionality is included in e-smith-samba since version 1.14.0-20.
To check the installed rpm version
To check the installed rpm version
On a SME Server 7.3 server this gives
On a SME Server 7.3 server this gives
e-smith-samba-1.14.1-3.el4.sme
e-smith-samba-1.14.1-3.el4.sme
so the installed rpm is more recent than that required (e-smith-samba-1.14.0-20)
so the installed rpm is more recent than that required.
===Configuration===
====Enabling and disabling====
Initially disable ShadowCopy for specific ibays or users you don't wish to take snapshots for
Initially disable ShadowCopy for specific ibays or users you don't wish to take snapshots for
eg
eg
Then enable and expand templates
Then enable and expand templates
config setprop smb ShadowCopy enabled
config setprop smb ShadowCopy enabled
signal-event ibay-modify Primary
config setprop smb WideLinks on
signal-event ibay-modify
=====WideLinks=====
Samba 3.5 changed the default for WideLinks to no, this tightens security to prevent symbolic links seeing outside the directory root. ShadowCopy itself will work without this setting, but will require shell access to restore files..
====Adding ibays and users to your server====
Add ibays and users to your sme server in the normal way. If ShadowCopy is enabled, then by default the newly added ibays and users will be included in ShadowCopy behaviour, so you must specifically exclude them from ShadowCopy behaviour using the disable commands mentioned above on a per ibay and user basis.
====Snapshots====
You need to schedule shadow copy to take snapshots.
You need to schedule shadow copy to take snapshots.
You can do this manually from the command prompt
You can do this manually from the command prompt
At the command prompt do
At the command prompt do
/etc/e-smith/events/actions/shadow-copy-rotate
/etc/e-smith/events/actions/shadow-copy-rotate
{{Note box|You will need enough free disk space to take a copy of the entire /home/e-smith/files directory plus any changes that take place.}}
{{Note box|You will need enough free disk space [and backup capacity] to take a copy of the entire /home/e-smith/files directory plus any changes that take place.}}
A suitable cron job that runs the script every hour from 10am to 5pm on weekdays would contain the following:
====Setup Cron====
A cron job that runs the script every hour from 10am to 5pm on weekdays would contain the following. Adjust to suit your requirements.
Create a file
Create a file
/etc/init.d/crond restart
/etc/init.d/crond restart
====Location of ShadowCopy files====
NB. Users recover files with windows explorer.
ShadowCopy files are located in:
The ShadowCopy files are located in:
/home/e-smith/files/.shadow/1
/home/e-smith/files/.shadow/1
/home/e-smith/files/.shadow/2
/home/e-smith/files/.shadow/2
Note that a new snapshot is only taken if files have changed.
Note that a new snapshot is only taken if files have changed.
===Bugs===
If you find a problem report it to the bug tracker at bugs.contribs.org
==='''References:'''===
===References===
[[bugzilla:1549]]
[[bugzilla:1549]]
[[bugzilla:6858]] Wide Links
[http://forums.contribs.org/index.php?topic=39954.0 Shadow Copy topic in the Contribs forums]
[http://forums.contribs.org/index.php?topic=39954.0 Shadow Copy topic in the Contribs forums]
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[[Category:Contrib]]
[[Category:Howto]]
[[Category: Backup]]
[[Category:Backup]]
[[Category:Administration:File and Directory Access]]
