localhost is always 127.0.0.1, right? Nope, can also be ::1 if your system only has IPV6 (apparently). Asking a DNS server for an A record for localhost should give you back 127.0.0.1 right? Nope – it varies wildly! 8.8.8.8 gives me an NXDOMAIN which means it tells you straight up THIS DOMAIN DOES NOT EXIST! Which is true, since localhost isn’t a domain. But if you ask the same thing of any dnsmasq server, it’ll tell you localhost is 127.
