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cv4pve-node-protect is a backup utility developed by Corsinvest Srl, currently available at version 2.1.1, with a total of four released versions documented in the catalog. The software belongs to the backup and disaster recovery category, with a specific focus on virtualisation infrastructure administration. Its purpose is to safeguard the configuration of Proxmox VE nodes by creating archives of their configuration files over SSH, without requiring any agents to be installed on the target systems. The tool connects to one or more nodes in a single run, packages the user-selected paths into a separate tar.gz archive per node, and organises the resulting archives into timestamped folders, making it straightforward to identify and retrieve backups from a particular point in time. A configurable retention policy is applied automatically, ensuring that older archives are pruned according to the rules defined by the administrator and that storage consumption remains under control without manual intervention. Authentication is flexible: connections can be established using SSH keys or passwords, with support for reading the password from a file, and a custom SSH port can be specified per host to accommodate environments where nodes are not reachable on the default port. Because only standard SSH access is required, the software integrates cleanly into existing Proxmox VE deployments without modifying the managed nodes. Typical use cases include the routine protection of hypervisor host configurations, the preparation for system recovery after hardware failure or misconfiguration, and the scheduled, multi-node backup of entire Proxmox VE clusters from a single central location. Administrators responsible for maintaining Proxmox-based infrastructure can use cv4pve-node-protect as a lightweight, scriptable component of their broader backup strategy, complementing virtual machine backups with dedicated protection of the underlying node configuration.
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