IP address + domain name

Question

I have an IP address, xx.xx.xx.xx, for which ping works. But when I do an nslookup for that IP address it is failing. Is there a way to find the domain name of the machine with the IP address xx.xx.xx.xx?

score 4 · Answer 1 · answered Jan 05 '10 at 13:08

4

The machine will not necesserily have a domain name.
Try traceroute

answered Jan 05 '10 at 13:08

alemjerus

141
3

score 3 · Answer 2 · edited Sep 05 '11 at 23:22

The only way to do this is via a reverse DNS lookup. However, if you are saying that nslookup is failing then (unless there is a local issue with you having bad DNS servers listed on your local machine), then a reverse lookup will not work.

The various tools that other posters have mentioned, all ultimately do exactly the same the nslookup will do from your machine. They do a reverse DNS lookup via the "in-addr.arpa" address range (this is a special domain reserved in DNS for reverse lookups).

score 2 · Answer 3 · answered Jan 05 '10 at 13:08

2

You need to use a "reverse DNS lookup". Try this one online, or Google further for other options.

answered Jan 05 '10 at 13:08

David M

354
2
6

score 1 · Answer 4 · answered Jan 05 '10 at 13:09

1

Yep, it's called Reverse DNS! Perhaps try: http://remote.12dt.com/

Also consider DNSStuff: http://www.dnsstuff.com/ great website for troubleshooting DNS issues.

answered Jan 05 '10 at 13:09

Noon Silk

161
3

I doubt this will work. nslookup is doing exactly this type of reverse lookup when yu type in an ip address. Unless there is a local issue on the client with DNS entries, it will yield the same results. – Jan 05 '10 at 13:19

score 0 · Answer 5 · answered Jan 05 '10 at 14:03

In order for an IP address to resolve to a hostname, a PTR record must exist in DNS. For example:

234.9.96.65.in-addr.arpa. 3570  IN      PTR     h00c0f06bacf1.ne.client2.attbi.com.

The ISP that owns the netblock including your IP (or its delegated zone authority) must set this up.

IP address + domain name

5 Answers5