How to mask reverse lookup for domains?

Question

is there a way to block reverse lookup sites so people can't see the other sites hosted on an IP?

Thanks.

score 1 · Answer 1 · answered Mar 07 '12 at 00:33

1

No, there isn't. Even if you block than through DNS, other people can still perform forward lookups and identify the same IP for multiple hosts.

answered Mar 07 '12 at 00:33

Daniel Pittman

3,758

score 1 · Answer 2 · answered Mar 07 '12 at 02:18

Reverse lookups are ultimately the same as forward lookups in that you can't find the records if they aren't published. It would be up to your DNS provider to remove the records from the reverse zone.

For example, 192.168.1.x are generally in the 1.168.192.in-addr.arpa zone. Thus, 192.168.1.5 is looked up as the 5 record in 1.168.192.in-addr.arpa. So, to not have 192.168.1.5 be resolvable, you would make sure 1.168.192.in-addr.arpa does not have a PTR record for 5 pointing at the name.

So basically, talk to whoever controls the DNS servers for the IP addresses in question and ask them to remove the entries.

How to mask reverse lookup for domains?

2 Answers2