Duplicacy: cross-platform cloud backup tool based on lock-free deduplication (opens in new tab)

(github.com)

48 pointsacrosync10y ago29 comments

29 comments

23 comments · 7 top-level

de_dave10y ago· 4 in thread

  During beta testing only binaries are available.

Why?! Surely this is the optimum time to provide source code, given the amount of trust one has to place in these things to not lose/misplace your data.

Titanous10y ago

Especially when crypto is involved. Given the large number of completely broken cryptosystems, making this open source will give it a fighting chance to not be entirely broken.

eis10y ago

Anything that handles critical data and sends it encrypted to third parties needs to be open source in this day and age or wont be used by people who take their data serious. Actually it doesn't even need to be sent to third parties to hit the open source requirement. Having crypto involved like you said is reason enough.

acrosyncOP10y ago

We're going to make this free for personal uses but not sure at this time what licensing model we should adopt.

ssatta10y ago

As long as 'free for personal use' means 'closed source' then at least I would have a hard time trusting a tool backing up personal files into public cloud storage without transparency about how the crypto is implemented. I suspect that may also be the case for much of your 'personal use' target audience.

1 more reply

Gazooo10y ago· 4 in thread

How is this different than http://duplicity.nongnu.org/ ??

acrosyncOP10y ago

There is a section comparing Duplicacy with others: https://github.com/gilbertchen/duplicacy-beta#comparison-wit...

kirushik10y ago

BTW, why does your comparison table says "Full Snapshot: No" for duplicity? One can definitely use `duplicity full` to explicitly ask for a full backup.

1 more reply

harwoodr10y ago

Well, since it isn't open source - how does it compare with crashplan (another closed source, data deduplicating, free for personal use, cross platform backup solution...)

1 more reply

sschueller10y ago

There is also http://www.duplicati.com/

BetaCygni10y ago· 3 in thread

Attic + s3cmd sync works fine for me. At least, well enough that I won't be using a closed-source solution. If this is released as open source, great!

eis10y ago

Unfortunately Attic seems to be abandoned (last commit 10 months ago). But there is a fork called Borg Backup that is actively maintained.

mahyarm10y ago

With s3cmd, don't you have to have a local copy of the backup somewhere although? So you have the content and the backup at the same spot, you can't directly backup to a remote server that way.

BetaCygni10y ago

Yes, you need to have a local backup. I actually prefer that, it's another backup location for when files are accidentally (or deliberately) deleted or damaged.

aorth10y ago· 3 in thread

I've been using Tarsnap for personal, encrypted, deduplicated backups for a few years. It's not shiny, but it works fantastically.

https://www.tarsnap.com/

dexterdog10y ago

But it is obscenely expensive. 1TB would cost you $256/month plus $256 to to your initial backup and another $256 if you ever need to restore.

eis10y ago

I wish there was a version that one can run on their own servers.

simonebrunozzi10y ago

I'm a big fan of Tarsnap and, of course, of Colin Percival.

linuxready10y ago· 1 in thread

Very interesting. Is it using VSS to backup on Windows ? Otherwise I don't see how it can really achieve a complete correct backup on Windows.

The best cross-platform backup tool I have found is Burp. However it doesn't backup to cloud.

acrosyncOP10y ago

Yes, there is a -vss option for the backup command.

olalonde10y ago· 1 in thread

Wish I had seen this a few days earlier before throwing together my own AWS backup scripts (https://github.com/olalonde/offsite-aws-backup). Does this also support database backups?

acrosyncOP10y ago

It should. The variable-size chunking algorithm works well with database files.

jmtd10y ago

Obligatory obnam plug: http://obnam.org

j / k navigate · click thread line to collapse

29 comments

23 comments · 7 top-level

de_dave10y ago· 4 in thread

  During beta testing only binaries are available.

Why?! Surely this is the optimum time to provide source code, given the amount of trust one has to place in these things to not lose/misplace your data.

Titanous10y ago

Especially when crypto is involved. Given the large number of completely broken cryptosystems, making this open source will give it a fighting chance to not be entirely broken.

eis10y ago

acrosyncOP10y ago

We're going to make this free for personal uses but not sure at this time what licensing model we should adopt.

ssatta10y ago

1 more reply

Gazooo10y ago· 4 in thread

How is this different than http://duplicity.nongnu.org/ ??

acrosyncOP10y ago

There is a section comparing Duplicacy with others: https://github.com/gilbertchen/duplicacy-beta#comparison-wit...

kirushik10y ago

BTW, why does your comparison table says "Full Snapshot: No" for duplicity? One can definitely use `duplicity full` to explicitly ask for a full backup.

1 more reply

harwoodr10y ago

Well, since it isn't open source - how does it compare with crashplan (another closed source, data deduplicating, free for personal use, cross platform backup solution...)

1 more reply

sschueller10y ago

There is also http://www.duplicati.com/

BetaCygni10y ago· 3 in thread

Attic + s3cmd sync works fine for me. At least, well enough that I won't be using a closed-source solution. If this is released as open source, great!

eis10y ago

Unfortunately Attic seems to be abandoned (last commit 10 months ago). But there is a fork called Borg Backup that is actively maintained.

mahyarm10y ago

With s3cmd, don't you have to have a local copy of the backup somewhere although? So you have the content and the backup at the same spot, you can't directly backup to a remote server that way.

BetaCygni10y ago

Yes, you need to have a local backup. I actually prefer that, it's another backup location for when files are accidentally (or deliberately) deleted or damaged.

aorth10y ago· 3 in thread

I've been using Tarsnap for personal, encrypted, deduplicated backups for a few years. It's not shiny, but it works fantastically.

https://www.tarsnap.com/

dexterdog10y ago

But it is obscenely expensive. 1TB would cost you $256/month plus $256 to to your initial backup and another $256 if you ever need to restore.

eis10y ago

I wish there was a version that one can run on their own servers.

simonebrunozzi10y ago

I'm a big fan of Tarsnap and, of course, of Colin Percival.

linuxready10y ago· 1 in thread

Very interesting. Is it using VSS to backup on Windows ? Otherwise I don't see how it can really achieve a complete correct backup on Windows.

The best cross-platform backup tool I have found is Burp. However it doesn't backup to cloud.

acrosyncOP10y ago

Yes, there is a -vss option for the backup command.

olalonde10y ago· 1 in thread

Wish I had seen this a few days earlier before throwing together my own AWS backup scripts (https://github.com/olalonde/offsite-aws-backup). Does this also support database backups?

acrosyncOP10y ago

It should. The variable-size chunking algorithm works well with database files.

jmtd10y ago

Obligatory obnam plug: http://obnam.org

j / k navigate · click thread line to collapse