Just found another cool thing in mac:
on localhost:631 hangs CUPS, printer server, that is used to send documents to print via lan. On web page there is just small page with description, documentation (for users, admins and devs), as well as list of previous jobs. Unfortunately, it doesn’t store original printed files (which was the reason ,that I originally looked for), but it still was a little unexpected.
Next thing I will look for all open ports and see, what they are really conceal."