Monthly Archives: August 2023

What are the most common DNS record types?

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In the realm of the Internet and network infrastructure, Domain Name System (DNS) plays a pivotal role in ensuring seamless navigation and accessibility. As a student deeply immersed in the complexities of network management, I find it essential to comprehend the most common DNS record types. These records constitute the backbone of how the Internet translates human-readable domain names into IP addresses, and vice versa.

A Records (Address Records)

The A Record, or Address Record, is responsible for mapping a domain name to an IPv4 address. This is what helps browsers and other internet services to translate a URL like ‘www.example.com’ into an address that the computer can understand.

DNS record types – How many are they?

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DNS Cache: How to Clear It and Why You Should

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When you browse the internet, your computer relies on a Domain Name System (DNS) to translate human-friendly domain names like “www.example.com” into machine-readable IP addresses. This translation process is crucial for accessing websites and online services effectively. To speed up this translation and improve browsing efficiency, your computer stores DNS information in temporary storage called the DNS cache.

What is DNS Cache?

The DNS cache is a local database that contains recent DNS lookup results. When you visit a website for the first time, your computer queries a DNS resolver to find the corresponding IP address. The resolver then responds with the IP address, and your computer stores this information in its DNS cache.

The next time you visit the same website or any other domain hosted on the same IP address, your computer can quickly retrieve the information from its local cache. This avoids the need to send a new DNS query, reducing the time it takes to load the website.

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