hi guys, I am using this howto as the basis of my backup: http://wiki.hetzner.de/index.php/Backup2l Anyone else doing something similar? I have some questions concerning backup2l maybe someone can answer them. First of all here is how I understood backup2l. I backs up the locations I specify (i.e. /usr /var /etc ) into a format I specify (i.e. tar.gz ) stores them locally, encrypts the files for the transfer, puts them on the remote server via ncftp and then deletes the encrypted version of the files. Can someone after reading that howto and maybe the manpage (which I did by the way ;-) explain how exactly the next differential backup is done? I mean does it do a complete backup, compare to the one still locally stored and just transfers the diff oder does it somehow only do a diff backup, maybe it sotred information about the full backup somewhere and uses this data to compare? Do I have to keep one backup on the Hard disk all the time? it looks to me like 1 backup is always kept on hd. also severall months ago when doing my first tests I had it running so that if one backup from lets say 2 weeks ago was outdated and deleted a new one was performed I mean there was only a deletion taking place when there was a new backup ready so that I had a minimum of backups I specified in the config. At the moment when backups reach a certain age like specified by me, all old ones will be deleted and I am left with only one full backup (the latest one).. maybe someone can share his configuration with me or give me some hints.