AJ Dellinger is a writer, reporter, and editor based in Madison, Wisconsin. He has been published in Wired, Gizmodo, CNET, and a variety of other publications. He has covered small business and ...

Listen carefully. The top level of the OSI Reference Model and the IETF protocol stack is the application layer. The application layer, however, doesn’t do applications. It provides services such as ...

As the Fat Protocol thesis posits, value in blockchains would mostly accumulate at the base protocol layer rather than the application layer. For a while, this seemed to be true. While borderless DeFi ...

The technology provides secure remote access to a broad spectrum of applications and network resources Application-layer VPNs are generating lots of attention these days. Proponents cite the ...

A novel traffic-loop vulnerability has been identified against certain implementations of UDP-based applications protocols. An unauthenticated attacker can use maliciously-crafted packets against a ...

What is a network protocol? Most textbook writers state something like this: A network protocol is a set of guidelines or standards for the operation of network devices, the methods of operation, and ...

Intrusion Detection System (IDS) is a type of security management for computers connected in a network. IDS monitor the network for security breach to analyze and identify the intruders. Intrusion ...

Network protocols are formal standards and policies consisting of rules, procedures, and formats that define how data is exchanged over networks. They ensure that devices can communicate effectively, ...

Joel is an internationally recognized expert in the areas of security, networking and messaging. Follow him on X (formerly Twitter) @joelsnyder. Building enterprise networks with routers and switches ...