What is Dynamic DNS? How does it work and how to setup DDNS?

What is a Dynamic DNS?

Dynamic DNS is a service that automatically and periodically updates your DNS’s A (IPv4) or AAAA (IPv6) records when your IP address changes. These IP changes are made by your Internet provider.

Dynamic DNS

 

How does Dynamic DNS work?

The Dynamic DNS monitors the IP address for changes. When the address changes (which it will if you have a dynamic IP address), the DDNS (or DynDNS) service updates your new IP address.

Why is it useful?

It can be very useful for people who want to host their website, access CCTV cameras, VPN, app or game server from their home computer. It is cheaper than to have a static public IP and by setting up Dynamic DNS, you will avoid the need to update all of your records whenever your IP changes manually. Also, static IP address is not always an option; it depends on your Internet provider.

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Monitoring your DNS, should you do it?

DNS provides, have excellent security measures to protect your DNS and deliver outstanding performance. The paid plans include DNS Failover & Monitoring, DNSSEC, many nameservers, and even more Anycast DNS locations. With so many safety measures should you be monitoring your DNS or should you just leave it without supervision?monitoring

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Types of DNS records

Do you know what types of DNS records are out there? If you don’t know them all, don’t worry, we will explain them all in brief. By identifying them, you can easily manage your DNS plan in the best possible way.

DNS records

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Reverse DNS and PTR record

What is Reverse DNS?

You probably know already what is a forward DNS. It links the hostname/domain to the IP address. Now think from the opposite direction. Reverse DNS, also known as rDNS is doing the mirror action, using the IP address to find the hostname/domain. You might be surprised that this is actually needed, but it has significant application. It is very useful for e-mail verifications B2B and troubleshooting.

ReverseDNS

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