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Re: [Duplicity-talk] Operation of verify command


From: Kenneth Loafman
Subject: Re: [Duplicity-talk] Operation of verify command
Date: Sat, 11 Dec 2010 07:07:12 -0600

Yes, I'm reading.  Will get to the bottom of this.

...Ken

On Sat, Dec 11, 2010 at 6:37 AM, <address@hidden> wrote:
You got a point.

It's documented, duplicity complains if it is not there. But it shouldnt be needed.
Ken are you reading?

ede/duply.net

On 11.12.2010 12:55, Chris Poole wrote:
> One final question then:
>
> The verify command grabs a volX.difftar.gpg file from the backup
> location, checks the files inside against the hashes made at backup
> time, then removes the volX.difftar.gpg file, and grabs the next one.
>
> So why do we need to give it a target directory? Can't it just put the
> files it downloads in /tmp or somewhere, given that it's going to
> remove them straight after?
>
>
> On Fri, Dec 10, 2010 at 1:33 PM, Chris Poole <address@hidden> wrote:
>>> read here, that should resolve your question
>>> https://answers.launchpad.net/duplicity/+question/116587
>>
>> Thanks, I hadn't noticed that.
>>
>> So when files are added to the backup fileset, a hash is taken. This
>> is stored in some other file that also gets encrypted and backed up.
>>
>> The verify command downloads the complete fileset and the file with
>> the hashes stored, and computes the hashes in each volume file again,
>> comparing them with the ones taken at the original backup time.
>>
>> If all is the same, the verify command passes.
>>
>> I'm happy with this, but occasionally would feel more secure by
>> checking the backed up fileset with the local fileset that they're
>> from. I've written a script to do this, essentially just using
>> md5deep. For some reason, I makes me feel more safe.
>>
>> Thanks.
>>


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