[plug] reverse DNS and IP lookup

[Leon Brooks]

Mike Holland wrote:

> What linux tools will do reverse DNS lookup on an IP address?
>  And if DNS fails, is there an on-line database to say who has been
> allocated a given address?

nslookup 139.130.89.1 tells you gw.wel7.Perth.telstra.net but you can 
use any DNS tool (e.g. dnsquery) by looking up the full name of the 
reverse address, in this case 1.89.139.130.in-addr.arpa, which will 
yield (if defined) a PTR record containing the name.


As for online databases, try http://ipindex.dragonstar.net/

-- 
It's bad luck to be superstitious. -- Andrew W. Mathis