I tried all 4 both on the pi (as well as my main computer, I was curious). The first 3 return “could not resolve host” immediately, and the 4th takes 2-3 minutes to time out. Interestingly, the same results happen on my desktop computer - on which Plexamp works.
If I curl the 4th address without the port listed, I get to a page from my router (pfsense) talking about a possible dns rebind attack. The prefix on the 4th address is my WAN IP.
