The reason we append your username to your .war file before it's deployed is because otherwise we would have conflicts. Say one user deployed test.war and a second user then also deployed test.war the first one would be overwritten and suddenly user1.heliohost.org/test/ would change to someone else's site. To prevent this we append the username to the front of the file. test.war becomes user1_test.war or user2_test.war depending on who deploys it. Sometimes this name change causes issues within the .war file when it's hard coded to only work with one name. To get around this issue we recommend writing your .war so it will work with any name, but if that isn't possible for you just simply name it vukosyst_web.war yourself. If your .war file already has your username and an underscore in front it won't be added again.
When you create a full backup anything in /home/vukosyst/ will be backed up as well. That is the directory that .war files are uploaded to prior to deployment.
The settings above are incorrect. Port is 21, encryption is Plain FTP / None. FTP over TLS is not supported on Johnny. If you need security, use SFTP instead, host is johnny.heliohost.org, port is 1373.