December 30, 2024

Tag: Domain Name System

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Understanding DNS Flood Attack: What Is It and How to Protect Against It

Markby Mark0

In today’s digital age, cybersecurity threats continue to evolve, targeting critical components of online infrastructure. One such threat is the DNS flood attack, a type of Distributed Denial of Service (DDoS) attack aimed at overwhelming Domain Name System (DNS) servers. This blog post will explore what DNS flood attacks are, how they work, and what can be done to protect against them.

What Is a DNS Flood Attack?

A DNS (Domain Name System) flood attack is a type of DDoS attack that specifically targets DNS servers, flooding them with a massive amount of requests in a short period. DNS servers are responsible for translating domain names (like example.com) into IP addresses that computers use to locate and communicate with each other. By overwhelming these servers with a flood of requests, attackers aim to disrupt the DNS system, rendering websites and other online services inaccessible to legitimate users.

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DNS

GeoDNS: Meaning & Advantages

Markby Mark0

First congrats. If you are googling GeoDNS, you are just one step away from giving excellent service to your clients. Let’s explore in detail what GeoDNS is and what its advantages are.

What does GeoDNS mean?

GeoDNS service is a premium DNS service that includes GeoDNS servers. These servers can check the DNS query of the clients. See their IP address, and based on the IP tables they use, they can redirect the clients to the closest web servers near them. The GeoDNS servers can do it by having multiple A or AAAA records and providing the right one that best suits the client’s query.

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DNS

DNS resolution explained

Markby Mark0

How is it possible that we never learn a single IP address of a site, yet we can browse the Internet without any problems? What magical process transforms simple-to-write domain names into IP addresses and makes it so easy for us humans? It is called DNS resolution!

What is the DNS resolution?

DNS resolution is the process that DNS uses to resolve domain names to their IP addresses. It starts with a simple client’s DNS query for a domain name that later goes through a DNS recursive resolver, different DNS servers on different levels (Root, TLD, and authoritative servers) and brings back the IP address of the domain in the form of an A or AAAA record.

What to do if DNS resolution is not working?

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