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Restic

Restic is open-source backup and recovery software for data protection. The software uses the Content Defined Chunking (CDC) method to de-duplicate data before encryption, minimizing storage space and improving security. Restic supports multiple backends for storing backups, including local filesystems, SFTP servers, REST services like AWS S3 or Backblaze B2. It enables users to manage an unlimited number of snapshots without performance degradation by implementing a copy-on-write strategy that only adds new chunks when files change between versions. The tool also provides verification capabilities to check the integrity of repositories and allows users to restore previous versions of backed-up data selectively.

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