Re:Engineer distributes resume via IPv6 traceroute
by yyyk on Friday August 26, 2022 @06:27PM
(#32613453)
>If you had a block of 20 IPv4 addresses, I don't see anything stopping you from doing the exact same thing.
A block isn't necessary at all, even on IPv4. Traceroute can easily show internal address or just be lied to. Just recently we've seen a different example of this on HN:
Re:Engineer distributes resume via IPv6 traceroute
by stonekyx on Friday August 26, 2022 @10:35PM
(#32615061)
IP addresses can be lied about, but reverse DNS still needs your ownership of those IP addresses if I understand it correctly. One would need the provider of those IP addresses to setup PTR records for them.
All kidding aside, IPv6 isn't even required for their website or this traceroute trick. He just set up an in-addr.arpa reverse DNS zone to reverse resolve particular IP addresses to specific values. If you had a block of 20 IPv4 addresses, I don't see anything stopping you from doing the exact same thing.