IPv4 Archives - Mark Waters

Why is the PTR record so important?

by MarkMay 30, 2022May 30, 20220

PTR record is not one of the most popular DNS record types, but it is absolutely important. Why? We will explore this and its main purpose in this article. So, let’s start.

PTR record: Meaning

The reverse equivalent of an A record is known as a PTR record. The PTR record maps an IP address to a hostname, whereas the A record translates a domain name to an IP address. As a result, the Pointer record assures that your IP address connects to your host in an official manner.

If you’re utilizing both internal and external mail servers, you’ll need to set up the Pointer record. This record improves the reliability of sending servers by allowing the receiving end to verify your IP address’s hostname. It’s a great strategy to defend yourself from all kinds of spammers.

(more…)

What is IPv6 used for?

by MarkApril 16, 2021January 9, 20240

So, you want to know when and why should you use IPv6? You came to the right place. Let’s see why is better and for what to use it.

What is IPv6?

IPv6 is the 6th version of the IP, the internet protocol. The IPs are a combination of rules the device must follow in order to send and receive data from a host to the destination. We need to have identifiable hosts with their locations – IP addresses and a route for the communication.

(more…)