Howtoforge published a tutorial about installing UrBackup server and client on Ubuntu 20.04.
How to Install UrBackup Server and Client on Ubuntu 20.04
UrBackup is an open-source and client/server backup system for Linux operating systems. It supports both file and image backups in a live system without interrupting current processes. It provides a web-based interface to manage all backups. It is cross-platform and can be installed on Windows, FreeBSD, Linux, and many Linux-based NAS operating systems.
