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With two-factor authentication (2FA), users must prove their identity through two different means before being granted access. What is two-factor authentication? Two-factor authentication, abbreviated as 2FA, is an authentication process…
Attackers can poison a DNS cache by tricking DNS resolvers into caching false information, resulting in the resolver sending the wrong IP address to clients, and users attempting to navigate…
Identity and access management (IAM) solutions protect company data even when employees do not enter the office. What are the security challenges of a remote workforce? In an on-premise working…
Border Gateway Protocol (BGP) is the routing protocol for the Internet. Like the post office processing mail, BGP picks the most efficient routes for delivering Internet traffic. What is BGP?…
DNS lets users connect to websites using domain names instead of IP addresses. Learn more about how DNS works. What is DNS? The Domain Name System (DNS) is the phonebook…
Four different types of DNS servers have to work in harmony to deliver a single webpage. What are the different types of DNS servers? All DNS servers fall into four…
A DNS root server is the first stop in a DNS lookup. What is a DNS root server? The administration of the Domain Name System (DNS) is structured in a…
In DNS lookups, which match domain names to machine-readable IP addresses, the journey up the DNS tree can either be made by DNS. What is recursive DNS? A recursive DNS…
Simple but effective “cheat sheet” on internet/networking protocols, simple examples of how they work, and use case scenarios for how a protocol would typically be used.