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Tag: DNS record

TTL Definition & Best Practices

In the complex realm of Domain Name System (DNS), Time to Live (TTL) plays a pivotal role in determining how long DNS records are cached by various systems across the internet. Understanding TTL is essential for optimizing DNS performance and ensuring efficient resolution of domain names to IP addresses. This blog post explores the definition of Time to Live in DNS, its significance, and best practices for effective management.

What is TTL in DNS?

Time to Live (TTL) in the context of DNS refers to the duration for which a DNS record can be cached by resolvers, servers, and clients before it expires and needs to be refreshed from the authoritative DNS server. It is measured in seconds and is included in DNS resource records to indicate how long the information should be considered valid.

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6 Critical DNS records You Need to Know

DNS records are an essential component of the internet infrastructure. They are responsible for resolving domain names into IP addresses that computers can use to communicate with each other. Without DNS records, navigating the web would be a lot harder. In this blog post, we’ll look at six critical DNS records you need to know. So, let’s start!

A Record (Address Record)

The A record is the most basic DNS record. It maps a domain name to an IP address. Whenever a user enters a domain name into their browser, the browser sends a request to the DNS server to resolve the domain name into an IP address using the A record. This record serves to point a domain name to a domain name’s IP address, allowing users to access a website.

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Dynamic DNS – Who can benefit from it?

What is the concept (purpose) of Dynamic DNS?

You must first grasp DNS in order to comprehend what Dynamic DNS (DDNS) is. It is a mechanism that associates a domain name, such as squadrainformatica.com, with an IP address (92.38.169.175).

The same idea is applied by Dynamic DNS but to a WAN IP that changes over time or is “dynamic.” Since having a fixed WAN IP address that never changes is expensive, the majority of household broadband plans do not contain a static WAN IP.

In other words, even if you write down or memorize your current WAN IP address, you generally shouldn’t rely on it to dial your home phone. This is because when you do, that address might have changed to someone else’s home network.

To solve this problem, we use DDNS. It links your current WAN IP address, whatever it may be at any given moment, with a reliable domain name of your choice.

As a result, you don’t even need to know your home network’s IP address to access it using that label (domain name) from anywhere in the world.

Check out an amazing Dynamic DNS service plans available!

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Authoritative DNS server – Why is it important?

Do you want to know why an authoritative DNS server is essential? Great. You are in the right place. Why? Because in this article today, we will explore exactly that and other exciting things about it.

Explanation of authoritative DNS server 

A DNS server that both maintains the original Resource Records and the Zone for the DNS Namespace domain is known as an authoritative DNS server. The information for name resolution of the DNS Namespace domain that it stores originated from reliable DNS servers. The last informational source for name resolution for the DNS zones they hold is an authoritative DNS server.

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