Tag: IPv6

How to set up PTR records

Posted on by Sam

In DNS management, forward lookups—such as A and CNAME records—are widely known and regularly configured. However, reverse DNS using PTR (Pointer) records is just as critical, especially for email servers, security protocols, and audit logging. This guide provides a technical walkthrough on how to correctly set up PTR records and ensure DNS consistency across your infrastructure.

What Is a PTR Record?

A PTR record maps an IP address back to a hostname. Unlike an A record, which resolves a domain name to an IP, a PTR record performs a reverse lookup: it answers the question, “Which domain corresponds to this IP address?”

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8 Fundamental DNS Terms You Need to Know

Posted on by Sam

The Domain Name System (DNS) is a crucial component of the internet’s infrastructure, ensuring that web browsers can locate and access websites by translating human-readable domain names into IP addresses. Understanding DNS is essential for anyone involved in web development, network administration, or even just managing a website. Here are eight fundamental DNS terms you need to know, explained in detail.

Advanced DNS terms you should know

1. Domain Name

A domain name is the web address you type into a browser’s address bar to visit a website, such as example.com. It’s a human-readable identifier that is easier to remember than an IP address. Domains are structured hierarchically:

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Is IPv4 on its way out?

Posted on by Sam

The world of networking has long been dominated by IPv4 (Internet Protocol version 4). However, as we progress further into the 21st century, the question arises: Is IPv4 on its way out? This discussion is increasingly relevant with the rise of IPv6 (Internet Protocol version 6) and the growing demands of our hyper-connected world.

The Rise and Reign of IPv4

IPv4, developed in the 1980s, has been the backbone of the internet for decades. It uses a 32-bit address scheme allowing for approximately 4.3 billion unique addresses. At the time of its creation, this seemed more than sufficient. However, the explosive growth of internet-connected devices quickly changed the landscape.

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5 DNS record types everyone should know

Posted on by Sam

Today we will talk more about the DNS record types. They are fundamental if you want your Domain Name System to work properly. Its primary function is to store critical DNS information.

So, let’s now take a deep look at the first 5 that everyone should know.

A record

Perhaps one of the most popular DNS record types is the A record, also called the address record. Its objective is to associate a domain name with an IP address (IPv4 address). Therefore, the A record must accurately display the correct IP address when a user requests a domain name.

Check out additional types of DNS records!

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