Well, I don't know such an app. But that can be done pretty easily, by installing an FTP server on every machine (or setting up a CIFS folder) and configure man

Well, I don't know such an app. But that can be done pretty easily, by installing an FTP server on every machine (or setting up a CIFS folder) and configure manually every computer to backup on the others... Then, if you provide more information (environement, OS, hardware, number of machines to backup, volume of data), maybe someone would come up with something to help you ?