Looking at the logs of my local DNS server, my Linux computer has been looking up 191.0.0.10.in-addr.arpa every few seconds. It also looks up ipv4only.arpa, but less frequently. As far as I know, arpa domains are apart of the DNS system itself? Is this normal?
Oh wait, I just realized that the IP is reversed from what the domain says. I thought it was 191.0.0.10.
10.0.0.191 is actually the IP address to the computer sending the queries.