Déjà Dup, an easy backup tool! Déjà vu?

Déjà Dup
Déjà Dup

Déjà Dup is a Gnome-based backup tool that aim for easiness. It provides transparent encryption of your data, can store to an external hard disk or a remote storage (SSH server or Amazon S3) and offers schedule backup.

The tool is extremely simple to use. It offers two big buttons, one for manual backup and one for restoring. Those two functions are accessible in the menu too, as well as preferences and help. That is all.

So how does it work?
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What is cloud computing?

Original author: AJ Ashton | License: CC Public Domain
What is?
For a short and quick answer, cloud computing is moving your computer experience from your desktop to the internet (the cloud!).

From the consumer of computing services perspective, it means having those services accessible from the internet:

  • Online application (e.g. Google Mail, Google Docs, etc.) ;
  • Online storage (e.g. S3Fox + Amazon S3, Flickr, Apple MobileMe, etc.) ;
  • Online services (e.g. Google Maps, Airline reservation, etc.).

From an IT person or software developer perspective, it means that you deploy your application on a (potential virtual) infrastructure or platform on the internet:

  • Virtual infrastructure or grid (e.g. Sun Grid, Amazon EC2, though both have their own specificities) ;
  • Platform (e.g. Google Apps Engine) ;
  • Identity verification, storage, payments, etc.