When I follow the dnsstuff link that John gave:
http://www.dnsstuff.com/tools/ptr.ch?ip=216.88.36.96
I get varied results. Sometimes, it does come back with a revdns and
sometimes not. I have attached the results from 2 attempts. Run it a few
times and see the difference.
Scott, is there a difference in the way dnsstuff checks from one attempt to
another?
Todd
Title: Reverse DNS Lookup
Reverse DNS for 216.88.36.96
Country: UNITED STATES
How I am searching:
Searching for 96.36.88.216.in-addr.arpa PTR at f.root-servers.net: Got referral to HENNA.ARIN.NET. (zone: 216.in-addr.arpa.)
Searching for 96.36.88.216.in-addr.arpa PTR at HENNA.ARIN.NET.: Got referral to NS1.SAVVIS.NET. (zone: 88.216.in-addr.arpa.)
Searching for 96.36.88.216.in-addr.arpa PTR at NS1.SAVVIS.NET.: Reports MNR1.MICRONEIL.COM.
Answer:
216.88.36.96 PTR record: MNR1.MICRONEIL.COM. [TTL = 86400 seconds]
(C) Copyright 2000-2002 Computerized Horizons
Title: Reverse DNS Lookup
Reverse DNS for 216.88.36.96
Country: UNITED STATES
How I am searching:
Searching for 96.36.88.216.in-addr.arpa PTR at c.root-servers.net: Got referral to BUCHU.ARIN.NET. (zone: 216.in-addr.arpa.)
Searching for 96.36.88.216.in-addr.arpa PTR at BUCHU.ARIN.NET.: Got referral to NS2.SAVVIS.NET. (zone: 88.216.in-addr.arpa.)
Searching for 96.36.88.216.in-addr.arpa PTR at NS2.SAVVIS.NET.: Reports that no PTR records exist.
Answer:
No PTR records exist for 216.88.36.96. [Neg TTL=86400 seconds]
Details:
NS2.SAVVIS.NET. (an authoritative nameserver for 88.216.in-addr.arpa.) says that there are no PTR records for 216.88.36.96.
To get a PTR record, you should speak to your ISP. You could also contact [EMAIL PROTECTED], who is in charge of the 88.216.in-addr.arpa. zone.
(C) Copyright 2000-2002 Computerized Horizons
