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Category Archives for "Network World Wireless"

‘FragAttack’ flaws threaten Wi-Fi, but not too seriously

Almost all Wi-Fi is potentially vulnerable to flaws that date back to 1997 when it became commercially available, but even the person who discovered the weaknesses says some of them are difficult to exploit. Wi-Fi resources Test and review of 4 Wi-Fi 6 routers: Who’s the fastest? How to determine if Wi-Fi 6 is right for you Five questions to answer before deploying Wi-Fi 6 Wi-Fi 6E: When it’s coming and what it’s good for Mathy Vanhoef, a post-doctoral student at NYU Abu Dhabi, has created attacks—FragAttacks—that take advantage of the vulnerabilities, but in an academic paper about them, says the most widespread vulnerabilities can be exploited only under specific, rare conditions, and require either user interaction or highly unusual configurations to succeed.To read this article in full, please click here

BrandPost: The secret of delivering private-line experience over optical networks

The world stands on the brink of the fourth industrial revolution – the confluence of new technologies like cloud computing, big data analytics, and IoT have reached a tipping point where enterprises can successfully process workloads in the cloud like never before.Indeed, 85% of enterprises will have deployed new digital infrastructure in the cloud by 2025, according to industry analyst IDC. In the US, the cloud migration rate of enterprises has exceeded 85% and in EU countries has reached 70%.Governments are a key catalyst for this change, as they push whole economies to digitize to improve whole of society benefits and increase national productivity. To read this article in full, please click here

AMD chips keep claiming more of the server market

AMD saw another quarter of outstanding growth in sales of its server chips, giving the company its highest single-quarter gain for server CPUs since 2006 and eating into Intel’s most valuable market segment, according to the latest market report from Mercury Research.We’ll get to the desktop segment later, but AMD’s server CPU share grew 1.8 percentage points from Q4 2020 to Q1 2021, from 7.1% to 8.9%. That is astonishing as server numbers just don’t move like that so quickly. In the same single-quarter period, Intel slipped 1.8 percentage points, from 92.9% to 91.1%.[Get regularly scheduled insights by signing up for Network World newsletters.] There is seasonality in the server market, where it is normal for sales to go down in Q1, Dean McCarron, president of Mercury Research, told me. Cloud-server companies like AWS and Google go through a build/burn cycle where they buy a lot, then take time to deploy it all. Right now we are at the very bottom of build cycle where they buy the least amount, so if they are putting up these kinds of numbers during a low point, it will be even better when they Continue reading

VMware picks an in-house exec for its new CEO

VMware says its COO for products and cloud services, Raghu Raghuram, will be its next permanent CEO, a signal that the company’s board intends to keep VMware on its present course.When Raghuram takes the reins in June, it will end a four-month interregnum, during which the company has been helmed by CFO Zane Rowe. Former CEO Pat Gelsinger became the CEO at Intel in February, returning to the company where he had worked for 30 years.VMware is the unquestioned 800-pound gorilla of the enterprise hypervisor market and has pursued both internal technology development and a succession of strategic acquisitions to diversify its business. The company’s hypervisor business, buttressed by deals with AWS, Azure, Google Cloud and other hyperscalers to provide its core products as cloud services, is still the main revenue stream. But VMware also plays in security, containerization, and cloud-native applications.To read this article in full, please click here

IT vendors push on-prem, pay-per-use hardware

A flurry of announcements from hardware vendors points to a change in how enterprises are purchasing servers, storage and networking resources for their data centers and edge deployments.To entice companies to keep workloads on premises, hardware vendors including Cisco, Dell, HPE, IBM, Lenovo and others are offering consumption-based pricing for data-center infrastructure. These pay-per-use products are designed to shorten procurement cycles, allow customers to scale up or down with demand, and more economically link hardware spending with usage.HPE, for example, pledged to transform its entire portfolio to pay-per-use and as-a-service offerings by 2022, and last week, the company added to its GreenLake lineup with new data services and infrastructure. Dell, for its part, unveiled the first products in its Apex portfolio of managed storage, servers, and hyperconverged infrastructure.To read this article in full, please click here

6 clever command-line tricks for fewer keystrokes

Linux commands offer a lot of flexibility. This post details some ways to make them even more convenient to use by making use of some clever tricks.Using file-name completion You can avoid typing a full file name by typing the beginning of its name and pressing the tab key. If the string uniquely identifies a file, doing this will complete the filename. Otherwise, you can enter another letter in the name and press tab again. However, you can also get a list of all files that begin with a particular string by typing the string and then hitting the tab key twice. In this example, we do both:$ ls di<tab><tab> diff-commands dig.1 directory dig.2 dimensions disk-usage-commands $ cd dir<tab> $ pwd directory [Find out how MINNIX was used as the inspiration for Linux.]   Reusing commands and changing them Reissuing recently used commands is easy in bash. To rerun the previous command, all you have to do it type !! on the command line. You can also reissue a command with changes. If you issued the first command shown below only to find that sshd wasn't running, you could issue the second command to start it. Continue reading

Tech industry remains on a hiring spree

Overall U.S. employment figures for April may have been dismal but not in the tech sector, which has grown steadily all year, adding 16,000 new jobs in April for a total of 60,900 so far this year.That’s according to CompTIA‘s analysis of the U.S. Bureau of Labor Statistics’ (BLS) latest Employment Situation Summary. The overall jobs numbers, which came out last week, were dismal. The U.S. created just 266,000 new jobs in April when economists surveyed by Dow Jones and The Wall Street Journal had estimated 1 million new jobs.Network training 2021: Businesses grow their own expertise However, there are signs of tech hiring slowing. Employers across all sectors of the economy reduced their hiring of IT workers by an estimated 234,000 positions. This was the first decline after four consecutive months of employment gains. For the year, IT hires have increased by 72,000 positions.To read this article in full, please click here

IBM leapfrogs everyone with its 2nm chips

As TSMC charges to 5nm transistor designs and Intel struggles for 7nm, IBM has topped them all with the world’s first 2-nanometer node chip.OK, it won’t come to market for four years, according to IBM, and they might not be the first name that comes to mind when you think of processor design, but they are the quiet power in the semiconductor world.[Get regularly scheduled insights by signing up for Network World newsletters.] As far as commercial chips go, IBM makes two: the Power series for its Power line of Unix and Linux servers, and zArchitecture that is used in the z Series of mainframes. But IBM has its IBM Joint Development Alliance which is partnered with just about every semiconductor vendor out there—Intel, AMD, Nvidia, TSMC, Samsung, you name it.To read this article in full, please click here

9 enterprise-storage startups to watch

As the enterprise edge expands to include semi-permanent remote workforces, IoT, and a range of applications like AI and M2M, they generate torrents of nonstop data that must be stored indefinitely and be available in near-real-time to users and applications.Legacy storage architectures are failing to keep up with both data growth and user/application demand. While storage innovation is pushing more workloads into the cloud, many startups have found that the average enterprise is not yet ready for cloud-only storage. Legacy architectures and applications are experiencing extended shelf-lives due to tight IT budgets, and many enterprises still prefer to keep certain workloads on-premises.To read this article in full, please click here

How to avoid the network-as-a-service shell game

I can’t tell you how many times one of my clients or contacts has complained about the difficulties associated with getting network-budget approval. If I’d never met a CFO in person, the description these people gave me would have led me to expect something like a troll or a zombie, bent on eating projects and maybe people, too. Do we wear garlic when we visit the CFO, or maybe do a chant before the meeting, or might there be a more practical approach?CFOs aren’t just trying to mess up a good technology project (at least most of the time), they’re trying to validate two basic financial rules that govern technology procurements.  Rule One is that any project must advance a company’s financial position and not hurt it. That seems logical, but it’s often difficult to assess just what the return on investment (ROI) of any project is.  Rule Two is that you don’t want to buy equipment that you’ll have to replace before it’s been fully depreciated. The useful life of something should be at least as long as the financial life as set by tax laws.To read this article in full, please click here

IBM moves toward consumption-based mainframe pricing

IBM continues to tweak its venerable mainframe to keep the Big Iron among the talking points in hybrid cloud.About a year ago the company changed its 20-year mainframe software pricing scheme to make it more palatable to hybrid cloud and multicloud users who might be thinking of moving workloads off the mainframe and into the cloud.To read this article in full, please click here

IBM embraces zero trust with upgraded Cloud Pak service

IBM has taken the wraps off a version of its Cloud Pak for Security that aims to help customers looking to deploy zero-trust security facilities for enterprise resource protection.IBM Cloud Paks are bundles of Red Hat’s Kubernetes-based OpenShift Container Platform along with Red Hat Linux and a variety of connecting technologies to let enterprise customers deploy and manage containers on their choice of private or public infrastructure, including AWS, Microsoft Azure, Google Cloud Platform, Alibaba and IBM Cloud.To read this article in full, please click here

9 tips for speeding up your business Wi-Fi

The days are long past when a fast office Wi-Fi connection was a nice-to-have. These days it's essential for your business to provide clients and employees alike with a speedy, reliable wireless network.<aside class="sidebar medium"><h3 class="body">Wi-Fi resources</h3><ul><li><a href="https://www.networkworld.com/article/3541759/test-and-review-of-4-wi-fi-6-routers-whos-the-fastest.html"> Test and review of 4 Wi-Fi 6 routers: Who’s the fastest?</a></li><li><a href="https://www.networkworld.com/article/3356838/how-to-determine-if-wi-fi-6-is-right-for-you.html"> How to determine if Wi-Fi 6 is right for you</a></li><li><a href="https://www.networkworld.com/article/3510461/5-questions-to-answer-before-deploying-wi-fi-6.html">Five questions to answer before deploying Wi-Fi 6</a></li><li><a href="https://www.networkworld.com/article/3563832/wi-fi-6e-when-its-coming-and-what-its-good-for.html"> Wi-Fi 6E: When it’s coming and what it’s good for</a></li></ul></aside>To read this article in full, please click here

Red Hat buttresses edge features in RHEL 8.4

New features in Red Hat Enterprise Linux (RHEL) are tuned to provide better remote support for edge networking where processor- and memory-constrained devices can present management problems.RHEL 8.4 announced this week at Red Hat Summit has new capability to send lighter-weight universal base images and is designed for potentially less capable edge devices, letting Red Hat customers deploy edge applications more flexibly.[Get regularly scheduled insights by signing up for Network World newsletters.] In addition to the new RHEL version, Red Hat announced updates to Podman, the company’s open-source container engine, that will allow users to manage widely deployed containers from a single console, and an OpenShift update that adds support for smaller clusters and remote worker nodes makes it easier to use Kubernetes in resource-constrained locations.To read this article in full, please click here

IBM buys Turbonomic for AIOps, hybrid-cloud management support

Big Blue kept its checkbook open this week buying AI-based application and network-performance management vendor Turbonomic for an unconfirmed estimate of $2 billion.The acquisition is the eleventh hybrid-cloud and AI-focused buy since Arvind Krishna became IBM CEO in 2020. "Hybrid cloud and AI are the two dominant forces driving change for our clients and must have the maniacal focus of the entire company,” he said at that time.Top metrics for multicloud management The Economic Times and Reuters said the deal was worth between $1.5 billion and $2 billion and would make it the largest since IBM grabbed Red Hat for $34 Billion in 2019.To read this article in full, please click here

COVID-19 upends disaster recovery planning

The COVID-19 pandemic exposed gaps in enterprise disaster recovery and business continuity planning in areas such as remote access, networking, SaaS applications and ransomware. Over the past year, IT execs have been scrambling to plug those gaps and update DR plans on the fly.More significantly, the pandemic triggered fundamental IT changes at many organizations, including a hasty migration of applications to the cloud, an acceleration of digital transformation efforts, the emergency provisioning of new systems and services outside of traditional procurement procedures, and, in many industries, the emergence a new category of full-time, work-at-home employees who are handling mission-critical data on their personal devices.To read this article in full, please click here

Arm talks 40% and 50% better performance from 2 new server chips

Arm Holdings has disclosed details of its two new server-processor designs, Neoverse N2 and Neoverse V1, as well as an updated high-speed mesh to connect its processors.The two designs were introduced last September but Arm was mum on performance. Now it's talking numbers.The Neoverse V1 is designed for scale-up servers, especially high-performance computing (HPC). It supports for Scalable Vector Extension (SVE) and delivers more than a 50% performance increase over the N1 for HPC machine-learning workloads.To read this article in full, please click here

802.1X: What you need to know about this LAN-authentication standard

When devics on enterprise LANs need to connect to other devices, they need a standard method for identifying each other to ensure they are communicating with the device they want to, and that's what 802.1x does. This article tells where it came from and how it works.802.1x defined IEEE 802.1X is a standard that defines how to provide authentication for devices that connect with other devices on local area networks (LANs).How to deploy 802.1x for Wi-Fi using WPA3 enterprise It provides a mechanism by which network switches and access points can hand off authentication duties to a specialized authentication server, like a RADIUS server, so that device authentication on a network can be managed and updated centrally, rather than distributed across multiple pieces of networking hardware.To read this article in full, please click here

Red Hat announces Red Hat Edge initiative

During this week's Red Hat Summit, the company announced enhanced support for edge networking in its upcoming RHEL 8.4 release. The Red Hat Edge initiative promises new capabilities that will make RHEL a more powerful foundation for the open hybrid cloud.The Red Hat Edge aims to extend Red Hat’s open hybrid cloud portfolio to the edge. This will involve everything from telecommunications and transportation to smart automobiles and enterprise devices. With Red Hat technologies, the edge-ready technology stack uses Red Hat Enterprise Linux along with: Red Hat OpenShift – making it possible to deploy Kubernetes platform in both space- and resource-constrained locations Red Hat Advanced Cluster Management – adding Kubernetes management capabilities across the hybrid cloud Red Hat Ansible Automation Platform – automating workflows Red Hat Integration – connecting applications and data across edge and open cloud deployments Red Hat Data Services – storing, analyzing and distributing data across edge and data centers The company is also expanding its predictive analytics offering, Red Hat Insights, across the open hybrid cloud with the launch of Red Hat Insights for Red Hat OpenShift and Red Hat Ansible Automation Platform and with expanded capabilities for Red Hat Enterprise Linux (RHEL). Continue reading

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