Times Enemy wrote:
> Greetings.
> 
> What is the preferred and secure method for using BackupPC to place
> backups, or a copy of the backups, on a remote server?
> 
> The goal is to have the local BackupPC ready for most recoveries, and a
> remote, off-site copy if something happens to the local set.
> 

There are several approaches.  The easiest, if you have enough internet 
bandwidth is to have a completely independent instance running 
elsewhere, perhaps with a VPN tunnel to be able to access the targets. 
Another is to rsync the archive filesystem to a remote machine 
periodically. However, the number of hardlinks in the archive make this 
a problem.  Using rsync 3.x on machines with lots of RAM will help but 
it may still take too long to be practical.

You can also do some kind of filesystem copy to external drives that are 
  rotated offsite.  You still have the issue with hard links so you need 
an image type copy for this.  I do it with a RAID1 set where a 3rd 
member is periodically added, re-synced, and rotated off site. This only 
requires stopping backuppc and unmounting the filesystem momentarly 
while the drive is removed, but the copy keeps the machine busy enough 
for about 2 hours that running backupps wouldn't be practical anyway. 
You could also use LVM snapshots to get about the same effect.

-- 
   Les Mikesell
    lesmikesell AT gmail DOT com

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