Resolv.getname

rubyonrails-talk
1

Hi,

I have been using Resolv.getname to verify that a callback has come from our secure payments processor.

If I do: nslookup 155.136.68.24

I get:

Non-authoritative answer: 24.68.136.155.in-addr.arpa name = wcc2.worldpay.com.

However if I do: Resolv::getname('155.136.68.24')

I get: irb(main):005:0> Resolv.getname('155.136.68.24') Resolv::ResolvError: no name for 155.136.68.24

Can anyone shed any light or suggest a better way of verifying the ip address?

Cheers George