PTR records are often called Reverse DNS records. A Pointer record (PTR) resolves an IP address to a fully-qualified domain name (FQDN) as an opposite to what A record does.
PTR records are mainly used to check if the server name is actually associated with the IP address from where the connection was initiated.
Here's how it's supposed to work. Suppose your IP address is 1.2.3.4:
1.2.3.4 --- PTR Record ---> hostname.domain.com
hostname.domain.com --- A-Record ---> 1.2.3.4
By default, you cannot add an addon or a parked domain on our shared servers without changing the...
DNS setup allows you to create a DNS hostname. After you create a DNS hostname, you get access to...
OnApp DNS Zone feature allows you to manage your and your clients' domain DNS. Each time DNS...
To edit your DNS domain: Go to your Control Panel's Settings menu, and click the DNS Setup...
You can change which service your domain uses for its website and email by managing its DNS...
