• United States

Reverse DNS

Apr 19, 20042 mins
Enterprise Applications

Do you have a step-by-step paper for setting up reverse DNS? We host our own Web page, but DNS is handled by ZoneEdit .ARIN. ARIN is the master authority for assigning IP address ranges to ISPs. You can go to ARIN and do a whois search to see if what is known about the public IP range you’re on.DNS Stuff to make sure that the reverse DNS is responding correctly. There another tool by the name of NetScanTools that will let you get in under the hood with DNS to make sure it is working correctly as well.

– Via the internet

I will give you the general idea. Exact steps are unique to the combination of DNS servers you use and the ISP you’re on. First find out if your ISP has “registered” your IP range as being assigned specifically to you or if it’s kept in the general pool assigned to them by 

The next step is to talk to the tech support folks at the ISP to see what they need to do and how they can work with you on handling reverse DNS requests. They should be able to delegate reverse DNS lookups to any server you request. Worst case, they can create a reverse DNS zone on their servers and populate it with the records you need. Since you’re using a third party to handle your DNS services, you will need to contact it to see what it needs to do to respond to reverse DNS inquiries, if your ISP is able to forward those requests.

In a situation in which you handle your own DNS services, create a reverse lookup zone on the DNS server. Depending on the software you run on the DNS server, it should be able to create a reverse lookup record anytime you create an A record for a host. Worst case is that you have to manually create the reverse lookup record after the A record is created. Once you have everything in place, you can use a Web site such as