Backing up programs

[Dany]

Francisco Reyes wrote:

>On Wed, 31 Dec 2003, Dany wrote:
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>>On my file server I have 2 drives.
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>I also have two drives on each of my machines. One for backup.
>I also keep several days worth of backups in case I corrupt a file.
>Overall I think I have the data part of the backup covered properly,
>although I plan to backup some directories every few hours instead of
>daily.
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>>- Unison :  2-way synchronization using rsync/ssh, multi platform
>>graphical interface.
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>I use unison to backup data from a remote machine to my local machine,
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>>- rsync :  typical rsync that will mirror the source to the destination
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>Why use both unison and rsync? Unison can do the same as rsync.
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Because it's one-way, so no worries about conflicts. I know I'm not 
supposed to change the destination files but I like to use a one-way 
backup solution.

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>>- rsync-backup : it's based on rsync but you get the advantage of
>>incremental backups so you can restore from a specific date. You can
>>also purge the backup by removing old stuff.
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>Will look it up.
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I made two mistakes in my description.

First the tool is call  rdiff-backup (and not rsync-backup which also 
exists) :  http://rdiff-backup.stanford.edu/index.html
Secondly, for the OS, I also use rdiff-backup and not rsync so I have a 
fast, space efficient, incremental backup of the OS too !

PS:  On the same web page you will also find a link to another tool call 
duplicity (http://rdiff-backup.stanford.edu/duplicity.html).  You can do 
remote backup but in that case the image can be stored on a remote FTP 
server and encrypted with GPG... sweet if you're planning to use the 
disk space of your ISP for backups!

Cheers
Dany

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>>A couple of cron jobs take care of the different backups at night.
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>Same thing here, except that I plan to do some dierctories more often (ie
>emails).
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>>I don't know if that answers to your question but I thought that could
>>give you some ideas.
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>Didn't really answer what I asked, but all suggestions/feedback/comments
>on how other people are doing things are always welcome. It helps to see
>other possible solutions to what one is doing. I am a firm believer in
>learning from the experience of others if they are willing to dedicate the
>time to share their experience with me. :-)
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