this link has been added to the Tips and tricks portion of the wiki.
but
does anyone else see this as a complicated workaround? i read through the
windowsxp setup and it is not trivial. what i mean is, repeating that
process on any number of laptops would be a hassle.
i wonder if it might be more efficient to just have an ssh script on the
windows machine that would login and launch a backup which the windows
machine gets on the network?? i think it may be a simpler solution.
any thoughts?
On 10/13/07, Stephen Joyce <[EMAIL PROTECTED]> wrote:
>
> Full details with apps and scripts at
> http://www.physics.unc.edu/~stephen/on-demand-backuppc/
>
> I'll add this to the wiki when I have time.
>
> Cheers, Stephen
> --
> Stephen Joyce
> Systems Administrator P A N I C
> Physics & Astronomy Department Physics & Astronomy
> University of North Carolina at Chapel Hill Network Infrastructure
> voice: (919) 962-7214 and Computing
> fax: (919) 962-0480 http://www.panic.unc.edu
>
> If it wasn't backed up, then it wasn't important.
>
> On Tue, 9 Oct 2007, Stephen Joyce wrote:
>
> > Hi,
> >
> > I needed a way for to conveniently backup my users' laptops. Some of
> these
> > are rarely, if ever, on our LAN. So, I implemented an on-demand backup
> > solution using Unison (rsync like directory sync util with gui) and
> > BackupPC.
> >
> > laptop ---------> "cache" disk -------------> "archive" disk
> > ^ ^
> > | |
> > Unison on- BackupPC checks
> > demand over for new files in
> > SSH tunnel cache hourly
> >
> > When a user initiates an on-demand backup via unison, the connection is
> > over SSH (fewer potential firewall issues). After Unison finishes, a
> flag
> > is set on the cache disk to indicate to BackupPC that fresh files exist.
> > BackupPC checks for this "freshness flag" instead of performing a ping
> of
> > the client. If new/fresh files exist on the cache, then an rsync based
> > backup is performed (of the host's directory of the cache disk) and the
> > flag removed. (There's a lot more logic and checks to prevent
> simultaneous
> > operations that I'm omitting here.)
> >
> > This setup allows mobile users to backup and restore files from the most
> > recent backup (the one on the cache disk) using the Unison gui. If an
> older
> > version of a file is needed, the user can log into the BackupPC server's
> > CGI and retrieve it from a prior backup.
> >
> > This provides a near-optimal solution, I think, for laptop backups. The
> > very first backup of a laptop may take a few minutes if there is a lot
> of
> > data (so should occur on the local LAN if possible), but future backups
> for
> > most users take under 5 minutes!
> >
> > If anyone is interested in my exact setup (pre and post dump scripts,
> > backuppc config, client backup script, etc) please let me know. If
> there's
> > sufficient interest I'll clean them up a bit, removing the site-specific
> > bits, and post them to the web.
> >
> > Cheers, Stephen
> > --
> > Stephen Joyce
> > Systems Administrator P A N I
> C
> > Physics & Astronomy Department Physics &
> Astronomy
> > University of North Carolina at Chapel Hill Network
> Infrastructure
> > voice: (919) 962-7214 and
> Computing
> > fax: (919) 962-0480
> http://www.panic.unc.edu
> >
> > Don't look back. The lemmings are gaining on you.
> >
> >
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> >
> > --
> >
> >
>
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