Category: Networking

Zero Trust is a security model based on maintaining strict access controls and not trusting anyone by default, even those already inside the network perimeter. What is Zero Trust security?…

Domain Name System (DNS) Hierarchy. Caches, Resolvers, Root, TLD, and Authoritative Name Servers explained for DNS requests.

Data loss prevention (DLP) is a set of tools and processes used to ensure that sensitive data is not lost, misused, or unauthorized access. DLP software classifies regulated, confidential, and…

URL filtering enables companies to block individual web pages and files to restrict what content their employees can access over company networks. URL filtering restricts what web content users can access.…

DNS filtering defined DNS filtering (or DNS block) describes a cybersecurity measure used to stop internet users from accessing unapproved websites on a server. Organizations use DNS blocking to secure…

Back in the day, people would gather to play networked games and “Geek Out.” This might also resemble some offices in the early days. It reminds me of “the old…

A secure web gateway (SWG) blocks or filters out harmful content and prevents data leakage. All employee Internet traffic passes through the SWG. What is a secure web gateway (SWG)?…

DNS amplification is a DDoS attack that leverages DNS resolvers to overwhelm a victim with traffic. What is a DNS amplification attack? This DDoS attack is a reflection-based volumetric distributed denial-of-service (DDoS)…

What is time-to-live (TTL) in networking? Time to live (TTL) refers to the amount of time or “hops” that a packet is set to exist inside a network before being…

What is the Internet Control Message Protocol (ICMP)? The Internet Control Message Protocol (ICMP) is a network layer protocol used by network devices to diagnose network communication issues. ICMP is used primarily…