Tag: Internet Protocol

Is IPv6 the Way of the Future?

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With the explosive growth of connected devices, IPv4’s limitations are becoming more apparent, leading to the development of IPv6, the successor protocol. So, let’s explain what it is, why it was developed, and whether it truly represents the future of the Internet.

What is IPv6?

IPv6, or Internet Protocol version 6, is the latest version of the Internet protocol used to assign unique addresses to devices so they can communicate on the network. The most significant difference between IPv4 and IPv6 is the size of the address space.

While IPv4 uses a 32-bit system that supports about 4.3 billion unique addresses, IPv6 uses a 128-bit system, allowing for an astronomical number of addresses — approximately 340 undecillion. This makes it capable of handling the immense growth of internet-connected devices in the future.

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What does Reverse DNS mean?

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Reverse DNS is an absolutely beneficial instrument for every business. It will convert the IP address into the domain name. But what makes you think you’d want that? Let’s take a closer look at Reverse DNS to comprehend it better.

PTR record – definition

The PTR is a DNS record type that we use for Reverse DNS to connect IP addresses (both IPv4 and IPv6) to the domain name. For example, when receiving mail servers want to know where an email came from, they execute a rDNS lookup and seek for PTR records. The PTR records will ensure that the IP address is actually associated with the domain name.

The purpose of Reverse DNS

Reverse DNS, also known as rDNS, is a querying technique used by DNS (Domain Name System) to do a particular sort of query with an IP address (IPv4 or IPv6) as an input and a name record as an output (A record or AAAA record). It’s termed reverse because it works in the same way as a forward DNS lookup, which connects an IP address to a domain name.

If you wish to check a specific host, you can use rDNS. Each host connected to a network has an IP address as an identification. You can readily see the IP address, but you can also execute a reverse DNS lookup to view the domain name and decide whether or not to trust it.

Check out the different Reverse DNS service plan possibilities.

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