So like my title says I am looking for some backup software. Free or paid I just need it to do what I need. If it can work with unraid that would be awesome, If not I will run it in a VM but here is what I am looking to do. I have 2 network folders that I need backed up. One is on a production machine with the folder shared to the network and the other is a Readyshare folder that is shared from a hard drive connected to the NAS port on my router. What I would like to do is back this data up and store it on my unraid server in case either of these locations become compromised. But With the back up I would like it to not overwrite the previous back up for an a period of time so that if there were changes made to a file that were in error or if something were deleted in error I can open a backup copy from say yesterday and restore what is wrong. or Restore a excel file that was incorrectly edited, saved and backed up.. This is why I don't want it to overwrite at least the last 2 - 3 back ups. Can anyone help with a solution to this.. I have looked into things like dropbox, syncthing and others but they simply sync, not backup. I seen craahplan but it looks like folks are getting away from that.. Thanks everyone who replies.