Monthly Archives: April 2024

Getting Familiar with Private DNS server

A private DNS server is a dedicated server that hosts DNS services exclusively for a specific organization or network. Unlike public DNS servers operated by internet service providers (ISPs) or third-party providers like Google DNS, private DNS servers are deployed within closed environments, such as corporate networks or private networks, to manage internal DNS resolution.… Read More »

What are DNS records, and why are they important?

DNS records are essential components of the DNS (Domain Name System) infrastructure, which maps human-readable domain names to numerical IP addresses used by computers to identify each other on the internet. DNS records store various types of information associated with a domain, such as IP addresses, mail server preferences, and domain ownership details. They play… Read More »

Understanding the threat of DNS cache poisoning

DNS cache poisoning is a cyber attack that exploits vulnerabilities in the Domain Name System (DNS) to redirect users to malicious websites or intercept sensitive information. In this attack, the cybercriminal manipulates the DNS cache of a recursive resolver to associate legitimate domain names with malicious IP addresses. As a result, unsuspecting users are directed… Read More »

DDoS attacks: Definition & Details

DDoS, or Distributed Denial of Service, attacks are malicious attempts to disrupt the normal functioning of a targeted server, service, or network by overwhelming it with a flood of traffic. These attacks typically involve multiple compromised computers, known as botnets, coordinated to send an overwhelming amount of requests to the target. The massive volume of… Read More »

What is the purpose of DNS zone transfer?

DNS zone transfer serves to replicate DNS data across multiple DNS servers. It allows secondary DNS servers to obtain updated information from a primary DNS server. This process ensures consistency and reliability within a DNS infrastructure. By allowing secondary servers to synchronize data, zone transfer enhances fault tolerance and improves the overall performance of the… Read More »