Category: DNS Disruptions

In modern IT infrastructures, virtualization has become the standard for deploying, managing, and scaling applications and services. From hypervisor-based systems to fully containerized environments and cloud-native platforms, virtualization offers significant advantages in flexibility, resource efficiency, and automation. However, this shift from static, physical networks to highly dynamic virtual environments introduces a unique set of challenges…

As enterprises embrace multi-cloud strategies to gain flexibility, optimize cost, and avoid vendor lock-in, the underlying infrastructure becomes increasingly complex. At the center of this complexity lies DNS, the essential system that connects users, applications, and services through human-readable names. In a multi-cloud environment, where workloads are distributed across providers such as AWS, Microsoft Azure,…

DNS queries are often overlooked as a rich source of forensic evidence during network investigations, yet they provide critical insights into both user activity and malicious behavior. As the foundational service that resolves domain names into IP addresses, DNS is involved in nearly every internet transaction. Whether a user visits a website, a system attempts…

DNS-based Blackhole Lists, or DNSBLs, are critical components in the global fight against spam, malicious emails, and other forms of unwanted or harmful internet traffic. These lists allow mail servers to query real-time databases that track IP addresses associated with spam or abusive behavior. If an incoming message originates from an IP found on a…

Ransomware has evolved into one of the most disruptive and financially damaging threats in the cybersecurity landscape, targeting organizations of all sizes and across every sector. These attacks often start with a seemingly innocuous event—a user clicking a link, a macro-enabled document being opened, or a software vulnerability being exploited—but what follows is a well-orchestrated…

The Domain Name System plays an indispensable role in the fabric of the internet, translating human-readable domain names into IP addresses that facilitate all forms of online communication. Because of its ubiquity and centrality, DNS is also a high-value target for a broad spectrum of cyber threats ranging from service disruption to espionage. The stateless…

In corporate environments where security, compliance, and productivity are paramount, the ability to control and monitor internet access is a foundational aspect of IT governance. DNS policies serve as one of the most effective tools for enforcing safe browsing, acting as a first line of defense in the enterprise network. By leveraging the inherent role…

MX records, or Mail Exchange records, are a critical component of the Domain Name System, responsible for directing email traffic to the appropriate mail servers for a given domain. When configured correctly, MX records ensure that inbound email is routed efficiently and reliably to its destination. However, when MX records are misconfigured, missing, outdated, or…

In the world of DevOps, where speed, consistency, and automation are essential to the delivery of reliable software, DNS hostnames play a pivotal yet sometimes underestimated role. As infrastructure becomes increasingly dynamic through the adoption of containers, microservices, and ephemeral environments, managing DNS hostnames effectively becomes critical to maintaining seamless connectivity, service discovery, and configuration…

As digital privacy becomes a growing concern for individuals, organizations, and governments alike, the role of DNS resolvers in protecting or exposing user data has come under intense scrutiny. At the heart of this debate is the question of who should operate the recursive DNS resolvers that end users rely on and whether centralizing these…