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From Facebook to LinkedIn to Indeed, ads are popping up that promise well-paying jobs — if applicants provide their Social Security numbers and other details up front. Scammers then use the information to apply for unemployment benefits.


The coronavirus pandemic giveth to Amazon retail business and its Amazon Web Services cloud business, and the pandemic taketh away from the Amazon retail business.


Companies should recognize that collaboration platforms aren’t isolated, secure channels where traditional threats don’t exist.


The Federal Aviation Administration said on Tuesday it had issued a special information bulletin alerting manufacturers, operators, and pilots that action may be needed to address potential interference with sensitive aircraft electronics caused by the use of 5G telecommunications technology.


The holiday shopping season always means big business for phishers, who tend to find increased success this time of year with a lure about a wayward package that needs redelivery.


If not handled in time, the attacks can lead to IP reputation loss and blocklisting, causing severe and expensive damage to companies, but a few precautionary steps can help keep the threats at bay.


The following resources and tutorials will enhance your understanding of container network security and help you get started.


With Continue reading

Is the M1 MacBook Pro Wi-Fi Really Slower?

I ordered a new M1 MacBook Pro to upgrade my existing model from 2016. I’m still waiting on it to arrive by managed to catch a sensationalist headline in the process:

“New MacBook Wi-Fi Slower than Intel Model!”

The article referenced this spec sheet from Apple referencing the various cards and capabilities of the MacBook Pro line. I looked it over and found that, according to the tables, the wireless card in the M1 MacBook Pro is capable of a maximum data rate of 1200 Mbps. The wireless card in the older model Intel MacBook Pro all the way back to 2017 is capable of 1300 Mbps. Case closed! The older one is indeed faster. Except that’s not the case anywhere but on paper.

PHYs, Damned Lies, and Statistics

You’d be forgiven for jumping right to the numbers in the table and using your first grade inequality math to figure out that 1300 is bigger than 1200. I’m sure it’s what the authors of the article did. Me? I decided to dig in a little deeper to find some answers.

It only took me about 10 seconds to find the first answer as to one of the differences in Continue reading

When students go back to school mobile usage goes down

When students go back to school mobile usage goes down
When students go back to school mobile usage goes down

For many (especially in the Northern Hemisphere, where about 87% of humans live), September is the “get back to school” (or work) month after a summer break and that also reflects changes in the Internet traffic, particularly in mobile usage.

Looking at our data (you can see many of these insights in Cloudflare Radar) there’s a global trend: mobile traffic lost importance (compared with desktop traffic) in September. The next chart shows there was less percentage of Internet traffic from mobile devices after Monday, September 6, 2021, with a difference of -2% in some days, compared with the previous four weeks (August), and in late September it’s more than -3%.

When students go back to school mobile usage goes down

We can also see that the percentage of desktop traffic increased in September compared to August (we compare here to complete weeks between both months because there are significant differences between weekdays and weekends).

When students go back to school mobile usage goes down

A few of weeks ago, we  saw there are considerable differences between countries regarding the importance of mobile usage. Getting back to work (or office hours) usually means an increase in desktop traffic. In that blog we highlighted the advantages that mobile devices brought to developing countries — many had their first contact with Continue reading

Video: How Can You Master Public Cloud Networking?

If you’re a regular reader of this blog, you’ve probably realized there’s still need for networking in public clouds, and mastering it requires slightly different set of skills. What could you as a networking engineer to get fluent in this different world? I collected a few hints in the last video in Introduction to Cloud Computing webinar.

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Video: How Can You Master Public Cloud Networking?

If you’re a regular reader of this blog, you’ve probably realized there’s still need for networking in public clouds, and mastering it requires slightly different set of skills. What could you as a networking engineer to get fluent in this different world? I collected a few hints in the last video in Introduction to Cloud Computing webinar.

Watch the video
You need Free ipSpace.net Subscription to watch the video.

Using chpasswd to change account passwords on Linux

The chpasswd command allows admins to change account passwords by piping username and password combinations to it.This can be done one-account-at-a-time or by putting all of the accounts to be modified in a file and piping the file to the command.[Get regularly scheduled insights by signing up for Network World newsletters.] How to use chpasswd Using the chpasswd command requires root privilege. You can switch to the root account and run a command like this:# echo nemo:imafish | chpasswd Better yet, you can use sudo with a command like this:To read this article in full, please click here

Using chpasswd to change account passwords on Linux

The chpasswd command allows admins to change account passwords by piping username and password combinations to it.This can be done one-account-at-a-time or by putting all of the accounts to be modified in a file and piping the file to the command.[Get regularly scheduled insights by signing up for Network World newsletters.] How to use chpasswd Using the chpasswd command requires root privilege. You can switch to the root account and run a command like this:# echo nemo:imafish | chpasswd Better yet, you can use sudo with a command like this:To read this article in full, please click here

Rockport Networks debuts the “switchless” network

A startup called Rockport Networks has exited stealth mode with an intriguing product: a switchless network. It claims the Rockport Switchless Network product can move data faster and with better latency than switched networks.In a Rockport Switchless Network, switching functionality has been reassigned to intelligent endpoint network cards where these devices (nodes) become the network. Each device has an FPGA and can connect up to 24 endpoints to a dedicated 1U SHFL (pronounced “shuffle”) optical device using passive cabling.[Get regularly scheduled insights by signing up for Network World newsletters.] SHFLs need no power or cooling and can be linked together to scale out the network. Ethernet and InfiniBand traffic can be carried over the Rockport network. The network cards are standard, low-profile half height, half length (HHHL) PCIe cards.To read this article in full, please click here

Rockport Networks debuts the “switchless” network

A startup called Rockport Networks has exited stealth mode with an intriguing product: a switchless network. It claims the Rockport Switchless Network product can move data faster and with better latency than switched networks.In a Rockport Switchless Network, switching functionality has been reassigned to intelligent endpoint network cards where these devices (nodes) become the network. Each device has an FPGA and can connect up to 24 endpoints to a dedicated 1U SHFL (pronounced “shuffle”) optical device using passive cabling.[Get regularly scheduled insights by signing up for Network World newsletters.] SHFLs need no power or cooling and can be linked together to scale out the network. Ethernet and InfiniBand traffic can be carried over the Rockport network. The network cards are standard, low-profile half height, half length (HHHL) PCIe cards.To read this article in full, please click here

Wacky as Facebook’s metaverse sounds, enterprises will have to deal with it

In our modern world, “metaverse” is the term applied to an artificial reality, a virtual world inhabited by avatars that represent real people and perhaps other AI virtual beings, too.What makes the concept relevant to enterprises are the Facebook decision to embrace metaverse as the future, the fact that others like Microsoft are following along, and the promise that it could redefine meetings, sales calls, support, and even work overall. Network planners would then have to consider its impact on traffic and connectivity.[Get regularly scheduled insights by signing up for Network World newsletters.] One big get-it-approved problem with the metaverse for enterprise is likely to be security. Facebook has had a lot of recent bad press for favoring profit over the welfare of its users, and that sort of thing sets compliance officers a-tingle, so self-hosting might be a solution. Executing that is partly a software issue and partly a network issue.The former, we can assume, would be handled by open-source development arising out of the interest Facebook has created. The latter isn’t as easy to dismiss.To read this article in full, please click here

Hedge 107: Career Advice with Terry Slattery

Whether you’re just starting in your technology career, or you’re an old hand who likes to go back to basics and understand how to move forward in your career, this episode of the Hedge is for you. Terry Slattery joins Tom Ammon and Russ White to discuss the things you can do to build a successful career as in the world of network engineering.

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10 limitations of MU-MIMO in Wi-Fi

Multi-user MIMO allows multiple Wi-Fi devices to simultaneously receive multiple data streams. For example, a wireless access point (AP) can send data to four different Wi-Fi devices at the same time. MU-MIMO can greatly increase the network's throughput and is a real asset for high density networks.MIMO – which stands for multiple input multiple output – technology has evolved over the years since the debut of the single-user mode (SU-MIMO), which was introduced more than a decade ago with the 802.11n wireless standard. Learn more about MU-MIMO and Wi-Fi 6To read this article in full, please click here

Kyndryl has spun off from IBM as a $19B managed service firm

Kyndryl, formerly IBM’s Managed Infrastructure Services unit, is officially an independent company.From the start the spinoff will be big, with more than 90,000 employees, $19 billion in annual revenue, operations in over 60 countries, and a customer base that includes 75% of the Fortune 100. Its goal of modernizing customer infrastructure will remain at the center of its strategy, but it wants to expand.[Get regularly scheduled insights by signing up for Network World newsletters.] Company executives say by spinning out of IBM, Kyndryl will have more freedom to partner with other major tech companies and cloud hyperscalers such as Google, AWS, and Microsoft. Plus it can invest in its workforce as well as focus on developing services for hot markets such as 5G, edge computing, cloud, and security.To read this article in full, please click here

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