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Tarsnap on remote/web servers



I've been using Tarsnap to back up my laptop (perfect, except for a little problem where Dropbox appears to be modifying metadata, causing Tarsnap to re-archive files).

I'm now considering using Tarsnap on a remote web/application server of mine.

I've seen horror stories posted to pastebin about hackers who break into a server nuke it, then use login credentials found on the server to reach wherever the server's backups are stored, and nuke those too.

Is there a way to limit Tarsnap so I have a key on the web server that allows tarsnap to create archives but not to delete them?

John

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John Mark Schofield
http://schof.org
jms@schof.org
(310) 751-0022