What is a LAN (local area network)?
A LAN, or local area network, is a group of connected computing devices within a localized area that usually share a centralized Internet connection. A local area network (LAN) is…
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.…
Chinese hackers breach US critical infrastructure in stealthy attacks
Microsoft says a Chinese cyberespionage group it tracks as Volt Typhoon has been targeting critical infrastructure organizations across the United States, including Guam, an island hosting multiple military bases, since…
Bitcoin energy use in Iceland set to overtake homes, says local firm
Iceland is facing an “exponential” rise in Bitcoin mining that is gobbling up power resources, a spokesman for Icelandic energy firm HS Orka has said. This year, electricity use at…
What is a DNS A record
The DNS A record points to the IP address for a given domain name. What is a DNS A record? The “A” stands for “address” and this is the most…
What is a DNS AAAA record?
The DNS AAAA record matches a domain name with an IPv6 address — similar to A records, which do the same for IPv4 addresses. What is a DNS AAAA record?…
What Is DNS propagation?
Now that you have the background knowledge you need, we can take a closer look at what DNS propagation is and how you can influence its performance. When you make…
What is identity and access management (IAM)?
Overview Identity and access management (IAM) is a centralized and consistent way to manage user identities (i.e., people, services, and servers), automate access controls, and meet compliance requirements across traditional…
What is a Network Node?
What is a computer network, and where do network nodes fit? A computer network is a computer and computing device system connected via communication links. These links allow the computers…
What is a firewall? How network firewalls work
A firewall sits between a network and the Internet, controlling data flow in and out of the network to stop potential security threats. What is a firewall? A firewall is…
