Tim Greene
Executive Editor
Tim Greene is executive editor of Network World.
Frontier still reigns as world's fastest supercomputer
The top 10 supercomputers on the June 2023 list compiled by TOP500 remain the same as last time.
Your decommissioned routers could be a security disaster
Retired enterprise routers—and the sensitive data that's still on them—are showing up on the used-equipment market where attackers could mine them for vulnerabilities to exploit.
Global hosting providers help keep key Ukraine web sites available
Providers' distributed hosting sites help dodge DDoS attacks, and security measures intercept application-layer threats, according to an analysis by ThousandEyes.
IDC: Add used IT gear to the mix to stretch budgets, support sustainability
The most cited reason for using refurbished gear is reducing e-waste, an IDC survey found.
IDC: With possible recession looming, IT pros plan spending adjustments
Short-term expectations: Delay new IT projects with of ROI more than 12 months. Longer term: Step up IT automation.
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.
About a third of cloud users need to learn resiliency lessons from Ian
While the Florida hurricane damage has your attention, it's time to plan for and implement redundant cloud and on-prem network infrastructure and strengthen backup and recovery capabilities.
Report: Cloud services can be made more resilient but at a premium
Uptime Institute says enterprises should beware that some cloud services that may appear more resilient may actually provide few guarantees of better availability.
The ‘Cisco’ gear you bought from these companies could be counterfeit
US charges: A years-long conspiracy has taken in $100M+ selling used Cisco devices disguised as new, more recent models
World's first exascale supercomputer is the world's fastest
Frontier, the supercomputer at Oak Ridge National Laboratory, blows away the competition with a performance of 1.12 exaFLOPS.
Facebook outage was a series of unfortunate events
A badly written command, a buggy audit tool, a DNS system that hobbled efforts to restore the network, and tight data-center security all contributed to Facebook’s seven-hour Dumpster fire.