Tim Greene
Executive Editor
Tim Greene is executive editor of Network World.
The 10 fastest supercomputers are led by one 2.8x faster than the rest
The TOP500 list of the world’s fastest supercomputers for June 2020 is led by an ARM-powered machine that performs 415.5PFLOP/sec and that can be tuned to handle AI apps at 1 exaFLOP/sec.
Sales of Ethernet switches and routers hit a 7-year low in Q1
COVID-19-related supply-chain issues, uncertainty undercut revenues from switches and routers.
What is the internet backbone and how it works
Tier 1 internet service providers (ISP) mesh their high-speed fiber-optic networks together to create the internet backbone, which moves traffic efficiently among geographic regions.
How to use the Linux uniq command
The uniq command in Linux is valuable for finding out who’s logged into a server
IBM closes $34B Red Hat deal, vaults into multi-cloud
IBM has completed its acquisition of Linux giant Red Hat in a move the companies say will allow them to tackle larger projects for customers and create more partnerships with other vendors.
Qualcomm loses case about its mobile-chip licensing fees
As 5G technology gears up, a federal court has ruled that Qualcomm’s ‘onerous’ fees for its mobile chips violate antitrust law.
Study: Most enterprise IoT transactions are unencrypted
A Zscaler report finds 91.5% of IoT communications within enterprises are in plaintext and so susceptible to interference.
HPE to buy Cray, offer HPC as a service
High-performance computing offerings from HPE plus Cray could enable things like AI, ML, high-speed financial trading, creation digital twins for entire enterprise networks.
Must-know Linux Commands
A compilation of essential commands for searching, monitoring and securing Linux systems - plus the Linux Command Line Cheat Sheet.
Russia demands access to VPN providers’ servers
10 VPN service providers have been ordered to link their servers in Russia to the state censorship agency by April 26
DoE plans world's fastest supercomputer
Aurora, the planned Department of Energy supercomputer, will be three powers of 10 faster than the current fastest supercomputer when it is delivered to Argonne National Laboratory in 2021.
Types of firewalls: What they do and what they're used for
Network firewalls were created as the primary perimeter defense for most organizations, but since its creation the technology has spawned many iterations: proxy, stateful, Web app, next-generation that are explained here.
Cisco adds new capabilities to its IBN infrastructure
Cisco has advanced its intent-based networking gear so now it can both verify that networks are actually running according to the intentions set by admins and also so it can help to find and resolve network problems faster on both...
VMware embraces cloud during VMWorld, CEO Gelsinger says
VMware is rolling out services worldwide in the AWS cloud over the next 15 months, starting in the U.S.
Network vulnerability analysis 101: Free online training
Learn how to discover and shore up weaknesses in your enterprise network.
Jet Propulsion Lab's IT CTO tells enterprises how to network IoT
The internet of things combined with cloud computing is the platform for innovation that is used by NASA’s Jet Propulsion Laboratory and that should be used by enterprises, but it means setting up the right network infrastructure, say...
SQL Server 2017 on Linux boosts efficiency for analytics firm
Financial analyticis firm dvo1 gains SQL Server benefits while continuing its use of Linux servers with its early use of SQL Server 2017 in its network.
What to do about WannaCry if you’re infected or if you’re not
Tips on protecting computers against WannaCry and remediating ones already infected.
England hospitals hit by coordinated ransomware attack
Hospitals across England have fallen victim to what appears to be a coordinated ransomware attack that has affected facilities diverting patients to hospitals not hit by the malware.