Mar 28, 2019
rDNS is Reverse DNS.
rDNS operates in the exact opposite direction of DNS, it converts IP addresses into domains.
What do we need rDNS for?
One great use of rDNS is for e-mail servers. Example:
mail.yourdomain.cominto 172.22.0.1, in order to send information back to the server.
mydomain.comhas security measures.. It wants to make sure 172.22.0.1 really is mail.yourdomain.com, so it performs a rDNS lookup.
mail.yourdomain.com, so it sends it's data.
How do I modify rDNS records for my IP(s)?
The control panel enables the customer to modify rDNS entries directly to their IP address(s), via http://one.limestonenetworks.com/dns/reversedns.html.