Exercise In this exercise we all need to work together. We have four virtual systems (ubuntu, redhat, fedora, suse). Each user must configure his AFD to send all data coming into the directory ~/data/wmo to the next 'higher' user. That is usr1@ubuntu sends to usr2@ubuntu. And usr2 sends to usr3@ubuntu. The last ubuntu user then sends to usr1@redhat. Aim is to create a big loop so the last user on suse must send the file to usr1@ubuntu.