I have this situation I'd like help on : during a project development we are granting someone FTP access to a subdirectory on our Linux server. However for several reasons we'd like to be aware of all activity in that workspace and also have a backup solution, so that for example if a file is uploaded and then removed we'd still be aware of that and have a copy of the file. I had in mind to use rsync and/or a tool detecting changes inside that dir, but I'm not sure how that would translate ?
Making a copy of the dir to another directory with a timestamp every minute would not be too rational even though disk space is not an issue...Could that idea be combined with a "change detection" tool (tripwire ?) triggering the backup/copy only when changes occur ?