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News and analysis on networking, the data center, and IoT

Network World First Look

17 Nov, 2022

World’s fastest supercomputer is still Frontier, 2.5x faster than #2

The top 10 of the semiannual TOP500 list of supercomputers for November 2022 has just one new entrant, Leonardo, which jumped in at #4.

Image: HPE launches supercomputers for the enterprise

HPE launches supercomputers for the enterprise

You can now get a scaled-down and less expensive supercomputer that's based on the same architecture of the machine that broke the exaFLOP barrier.

8 free, cheap, and hands-on ways to learn about network administration

Step-by-step instructions to walk you through network-administration projects that can hone skills in IP addressing, Wi-Fi monitoring, documenting asset configuration, setting up DNS, and more.

VMware adds more security for diverse cloud workloads

VMware has added more security capabilities to Project Northstar, its security and networking service due out next year.

IBM goes big on quantum-computer hardware, software

IBM's most powerful quantum computer yet, Osprey, is a 433-qubit machine, and the company is enlisting partners to identify quantum-computing use cases for businesses.

Looking at user login time with the ac command

The ac command can provide very useful summaries of how much time users spend logged into a Linux system. It gets its data from the wtmp file.

Should security systems be the network?

Small enterprises can get away with using security gear as their network infrastructure, but can larger ones, and is it a good idea?

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