Category: Files.fm Backup

Background In Duplicati 1.3 backups were done and stored the following way: There was always a full backup followed by incremental backups. The latest incremental backup was based on all previous backups. To restore latest files, all backup files were required. Files were written into compressed archives which were encrypted afterwards. The archives of incremental…

Duplicati Restore Process If you have read the How the backup process works document, you might be wondering how the restore process uses the stored data to restore your files. This document explains this process, using the Duplicati.CommandLine.RecoveryTool.exe process as the starting point, so we can skip the complications added by the local database. Unless you are curious about…

Introduction Duplicati is an open source backup application, that has no server-side components and thus it can support a wide variety of cloud-based storage providers. This also means, Duplicati has to handle large latencies, disconnects and it can only add and delete files but not modify existing files. Duplicati copes with it by using a…

Strong Encryption Duplicati uses strong AES-256 encryption to protect your backups. It is designed following the TNO principle: Trust No One. For instance, all data is encrypted locally before it is transferred to the remote storage system. The password/key to your backup never leaves your computer. Instead of AES-256 you can use a local GPG…

If warning or error notifications are shown while the software is running, they must be examined and analyzed in detail to resolve the cause of the problem. There can be multiple causes of warnings or errors for example invalid computer settings, internet connection problems, incorrectly entered information while creating backup, lack of administrator permission, unable to…

The Windows Drive Letter Problem If you are a Windows user, you may have noticed that the drive letter Windows assigns can change from time to time. This happens because Windows picks the next available letter and assigns it to the drive. This is problematic for Duplicati backups, as it expects the backup data to…