Synopsis # rsync is a fast and versatile file-copying tool used to synchronize files and directories between local and remote systems. It performs delta-based file transfers, making it especially efficient for backups and large data synchronization tasks. Though not included in the OpenBSD base system, rsync is available via packages and integrates well with ssh(1) for secure transport. This chapter documents the installation, configuration, and usage of rsync on OpenBSD in both client and se...