RDNS (Reverse DNS) resolves an IP address to a domain name. To find rDNS for an IP address, you can use the command nslookup. nslookup IP_ADDR_HERE In the above screenshot, IP address 51.38.246.115 have reverse DNS set to ok.serverok.in You also need to verify the hostname points to IP address. Many server providers check this … Read more
Reverse-DNS/PTR is used by mail servers. It is used to map an IP address to FQDN or hostname. To find Reverse DNS record for an IP address, run nslookup IP_ADDR_HERE In this example IP 51.38.246.115 have a Reverse DNS record ok.serverok.in Using dig You can also use dig command to find PTR record for an … Read more
Reverse DNS record or PTR Record is generally used by mail servers. Usually, the server’s hostname (FQDN – Fully Qualified Domain Name) is used as a reverse DNS record. How to verify rDNS How to set Reverse DNS (rDNS/PTR Record) for IP in Vultr VPS How to set Reverse DNS on Amazon EC2. Remove Email … Read more