8 Linux Nslookup Commands to Troubleshoot DNS (Domain Name Server)
nslookup is a command-line administrative tool for testing and troubleshooting DNS servers (Domain Name Server). It is used to query specific DNS resource records (RR) as well. Most operating systems…
What Is LoRa?
LoRa (short for long range) is a spread spectrum modulation technique derived from chirp spread spectrum (CSS) technology. LoRa is a long range, low power wireless platform that has become…
Elon Musk triples down on making Twitter terrible for trans people.
Elon Musk, the world’s richest person and ostensible champion of free speech, took to Twitter late Tuesday to stoop to a new low. Responding to a tweet complaining about being…
Wiretaps
Background Wiretapping is the oldest form of modern surveillance, with new technology it’s more powerful than ever. Wiretapping is using a device to listen in on a person’s phone calls.…
How to encrypt a file with symmetric encryption – GnuPG
In this guide, you’ll learn how to encrypt a file using symmetric encryption. 1. Install GnuPG First, you need to install GnuPG on your operating system. GnuPG, or GPG as…
What is Browser Isolation?
Browser isolation protects users from untrusted, potentially malicious websites and apps by confining browsing activity to a secured environment separated from user devices and organizational networks. What is browser isolation?…
Zero Trust security | What is a Zero Trust network?
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?…
What Is Network Address Translation (NAT)? Meaning, Working, and Examples
NAT is used to map multiple local private addresses to a single IP address. What Is Network Address Translation (NAT)? Network address translation (NAT) is the process of mapping private…
The DNS System Hierarchy
Domain Name System (DNS) Hierarchy. Caches, Resolvers, Root, TLD, and Authoritative Name Servers explained for DNS requests.