Tim Greene

Executive Editor

Tim Greene is executive editor of Network World.

COVID-19: Weekly health check of ISPs, cloud providers and conferencing services

Sales of Ethernet switches and routers hit a 7-year low in Q1

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

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 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

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.

Russia demands access to VPN providers’ servers

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

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.

What is a firewall? Much more than network-perimeter defense

What is a firewall? Much more than network-perimeter defense

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.

Tech calendar 2018-19: Upcoming events of interest to IT pros

This technology-events calendar is sortable and updated weekly to provide details for IT pros interested in learning more about technology and networking with their peers.

What is a private cloud? [ And some things that it's not ]

What is a private cloud? [ And some things that it's not ]

Here's a clear definition of private cloud that should help lift some of misconceptions about what private cloud is and is not, and reaffirm that private cloud is definitely not dead.

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