Comodo Online Backup Alternatives for Linux

CrashPlan provides comprehensive and secure backup solutions for individuals, businesses, and enterprises, offering flexible options including offsite, onsite, and cloud-based storage to ensure data protection and recovery.

Duplicati is a robust, free, and open-source backup client that securely stores encrypted, compressed, and incrementally updated backups on various cloud storage services, remote servers, or local drives. It's designed for both technical users and those who prefer a guided configuration.

Areca Backup is a free, open-source file backup tool developed in Java. It provides powerful backup capabilities including incremental, differential, and delta backups, with support for encryption, compression, and various storage destinations like FTP and local drives. Designed for personal use, it offers flexibility through backup profiles and command-line access.

Jungle Disk is a comprehensive online backup software service offering cloud backup, sync, and security solutions for businesses and individuals. It provides reliable data protection with features like end-to-end encryption and flexible storage options, including support for Amazon S3.