When comparing Déjà Dup vs Attic, the Slant community recommends Déjà Dup for most people. In the question“What are the best backup programs for Linux?” Déjà Dup is ranked 4th while Attic is ranked 15th. The most important reason people chose Déjà Dup is:
The program's interface has 4 tabs - overview, storage, folders and schedule. You select where to back up in "storage", what folders to back up and ignore in "folders" and how often to back up in "schedule." Overview displays all these settings and offers a choice of backing up and restoring.
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Pros
Pro Straightforward interface
The program's interface has 4 tabs - overview, storage, folders and schedule. You select where to back up in "storage", what folders to back up and ignore in "folders" and how often to back up in "schedule." Overview displays all these settings and offers a choice of backing up and restoring.
Pro Can back up to any server that Nautilus can connect to
You can connect to both physically connected devices as well as devices that are available over FTP, SSH, as long as Nautilus can connect to them.
Pro Available on Ubuntu by default
For people using Ubuntu, this is already installed.
Pro Good deduplication
Attic avoids duplication of data in its backups.
Pro Optional encryption of data
Backup data can be encrypted using 256-bit AES encryption and data integrity and authenticity is verified using HMAC-SHA256.
Cons
Con Backend provider choices recently removed
As of version 42, support for backup to Amazon S3, Google Cloud Storage, Openstack Swift, Rackspace, etc has been removed entirely. Google Drive is the default and seemingly only option.
Con No way to set limitations on how much disk space the application should use
The program will use up all available disk space for backups. There's not way to set limitations.
Con No way to set a specific backup time for automatic backups
You can only set the backups to be daily, weekly or monthly without the ability to tell what time the backups should happen.
Con Discontinued
Attic has been discontinued in favor of Borg.
Con No GUI
Only available as a command line tool.