Порты суперпользователя IPv6

You might look through the list of backup software at https://github.com/kahun/awesome-sysadmin#backups; for Linux clients, I've had good luck with rsync (just mirror) or rsnapshot (deltas over time via hard link tree, but probably overkill if you just want a simple rsync mirror for crashplan to work on); on the Windows side I've less experience, though perhaps a Samba share and robocopy might do the trick?