Dynamic DNS, or DDNS, is a method of updating a name server in the Domain Name System (DNS) automatically, even in real time. This service is particularly useful when an Internet service provider (ISP) changes the IP address. Dynamic DNS can update the new IP address without any human intervention, making it highly beneficial and widely used. Read more interesting details about Dynamic DNS!
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rDNS, or Reverse DNS, is a process that identifies the domain name associated with an IP address (IPv4 or IPv6). That is the reverse of Forward DNS, which seeks to match a domain name to its corresponding IP address. The use of PTR records is necessary for the successful completion of rDNS. Typically, rDNS is employed to verify that an IP address belongs to a particular domain name, thus helping to prevent spam and fraudulent emails. Discover additional information about rDNS!
DNS propagation refers to a time period required for the updated DNS records to be refreshed entirely over every web server. Unfortunately, changes don’t happen immediately. The reason for that is because nameservers keep the DNS data in their cache memory for a particular amount of time (TTL) until they check for modifications in the information and refresh. Therefore, you have to ensure you have planned the DNS record modifications for your domain name well. That way, you won’t notice any downtime. Find out more information about DNS propagation and how it works!