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network / data center

What is Nmap and why do you need it on your network?

While there are many monitoring tools available to network administrators for port scanning and network mapping, Nmap is the de facto standard. Here's why.


A magnifying lens exposes an exploit amid binary code.

CISA issues emergency warning over two new VMware vulnerabilities

The U.S. Cybersecurity and Infrastructure Agency issues emergency security directive over VMware vulnerabilities CVE-2022-22972 and CVE-2022-22973, which threat actors are likely to exploit.


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Cisco's $15B backlog: China COVID worries, impact of war in Ukraine

On Cisco's news of flat Q3 revenue the company and competitors Juniper, Arista and others take a stock hit.


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cloud data warehouse

Pure Storage, Snowflake partner for on-premises data warehousing

Snowflake has always worked in the cloud, but some data warehouses are on premises, and that needed to be addressed.


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Suprise! The internet of things doesn’t necessarily include the internet

Connected devices need a safe, reliable network of things (NoT) that ties them together, but that glue is likely IoT-specific protocols, not the internet.


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8 questions to ask vendors about Zero Trust Network Access (ZTNA)

Most companies understand they need to transition from perimeter-based security to a Zero Trust model. And they understand that they can’t purchase Zero Trust as an off-the-shelf product. Here are eight questions to ask prospective...


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Google Cloud boosts open-source security, simplifies zero-trust rollouts

New Google Cloud security services aim to strengthen open-source security, simplify zero-trust adoption, and improve cloud governance.


thousandeyes map

Weekly internet health check, US and worldwide

ThousandEyes, which tracks internet and cloud traffic, provides Network World with weekly updates on the performance of three categories of service provider: ISP, cloud provider, UCaaS.


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Extracting substrings on Linux

Linux provides a nice selection of commands for pulling substrings from text, but each has its own way of working.


AMD Epyc Rome CPU

AMD makes steady gains on Intel in server chip market

Epyc server chips help AMD gain ground in data center against Intel despite major fall-off in x86 shipments.


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What is a private cloud?

Private clouds offer a safe haven for applications and data not suited to the public cloud for compliance, regulatory, security or other reasons.


5G mobile wireless network

5G uploads aren't fast enough for enterprise needs

A survey of wireless ISPs shows that the download speeds of their 5G services are significantly faster than 4G, but the gains in upload speed are less impressive.


big data / data center / server racks / storage / binary code / analytics

Western Digital unveils 26TB hard drives, 15TB enterprise SSD

Storage giant updates its high-capacity hard drives and SSDs and debuts a new portable storage device.


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Nokia launches SaaS services to tackle energy consumption and home device management

Nokia has launched two new software-as-a-service products to help customers improve their energy efficiency and manage smart devices.


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How many jobs are available in technology?

IT hiring is on a record pace this year, but CIOs are under pressure to meet company goals to recruit talent related to security, blockchain processing, and cloud computing. Overall, the unemployment rate for tech jobs is 1.3%,...