DNS attacks are a type of cybercrime that takes advantage of flaws in the Domain Name System. Because the DNS system is such an essential element of the internet infrastructure while still having several security flaws, this is a severe cybersecurity risk.
There are many types of DNS attacks, but this post will focus on a few of the most common ones. Cybercriminals, for instance, can use DNS’s core features to amplify DDoS attacks. DNS spoofing, for example, is an attack vector that tampers with DNS entries in order to reroute internet users to specified websites. So let’s explore them in more detail.
DNS propagation refers to the process of updating and distributing all of the new changes and modifications that you make in your Domain Name System (DNS) to the rest of the entire network.
When you own an online business, or perhaps, you are administrating a network, you are aware that that requires a lot of adjustments on your DNS. For instance, sometimes, you have to create, delete, or modify a DNS record, or replace an IP address. Additionally, actions such as changing the TTL (time-to-live) values, redirecting your visitors to a precise subdomain, or adding an SSL certificate also require your intervention. That is just a small part of the various different changes that could appear regarding your DNS.
The DNS cache is a temporary cache memory for storing DNS records of previously queried domain names. A lot of devices hold such memory mechanisms, such as DNS recursive servers, computers, tablets, mobiles, etc.
DNS records are an essential part of managing a DNS. Every one of them has a specific and very important functionality. To achieve a perfectly working DNS, it is crucial to know what is their main purpose. Here we have 5 most commonly used DNS records that are good to know for a start. Let’s see which are they and what they do!