Dear DNS Coach,
What is a PTR Record used for?
First of all, let’s discuss what a PTR Record (or Pointer Record) is before we go into what it is used for.
A PTR Record is used to map a network interface (or IP) to a host name. These records are most often used for reverse DNS.
Reverse DNS (rDNS) is the method of resolving an IP address into a domain name, just as DNS resolves domain names into associated IP addresses.
[ This is what it looks like when you add a PTR Record in DNS Made Easy ]
The end result of this record is that: 192.168.1.10/27.in-addr.arpa. points to mail.example.com.
Don’t forget to submit your own DNS questions by tweeting us on Twitter @DNSMadeEasy! DNS Coach is here every Wednesday to help you better understand what we love to do here at DNS Made Easy.
So, ask away!
Sincerely,
DNS Coach
For more information, view our tutorials at:
http://help.dnsmadeeasy.com/managed-dns/records/pointer-ptr-record/
Also published on Medium.
