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December 17, 2021
12:00
Using the timedatectl command to control your Linux time and time zone
» ‎ Network World

Tags: [edit]
The timedatectl command allows you to both query and change the system clock and its settings on Linux systems.

To display the current settings, use the command by itself—with no arguments. You should see something like this:
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```
$ timedatectl
               Local time: Thu 2021-12-16 11:12:31 EST
           Universal time: Thu 2021-12-16 16:12:31 UTC
                 RTC time: Thu 2021-12-16 16:12:31          <; real time clock
                Time zone: America/New_York (EST, -0500)
System clock synchronized: yes
              NTP service: active
          RTC in local TZ: no
```
The fields shown include the local time, universal time (the same around the globe), RTC (the real-time clock, usually an integrated circuit), and the time zone (America/New York” is the Eastern time zone). NTP is network time protocol for clock synchronization between computer systems over packet-switched, variable-latency data networks. In this case, the RTC it is not set to the local time zone.

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December 16, 2021
21:12
Log4j flaw needs immediate remediation
» ‎ Network World

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After nearly two years of adopting major network and security changes wrought by COVID-19 and hybrid work, weary IT network and security teams didn’t need another big issue to take care of, but they have one: Stemming potential damage from the recently disclosed vulnerability in open source Java-logging Apache Log4j software.

Log4j or Log4Shell has been around a long time—it was released in January, 2001—and is widely used in all manner of enterprise and consumer services, websites, and applications. Experts describe the system as an easy-to-use common utility to support client/server application development.

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17:09
BrandPost: SASE Solution: Why Best-of-Breed Beats A Single Vendor Approach
» ‎ Network World

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By: Gabriel Gomane, Sr Product Marketing Manager, Aruba, a Hewlett Packard Enterprise company.

The ability to converge existing networking and security functions into a single SASE vendor is a compelling proposition. Afterall, a full-stack solution offers convenience and a relatively straight-forward deployment paradigm; however, such an approach may come with unforeseen downsides, including gaps in functionality along with a reduction in flexibility required for today’s networks that must serve an increasingly hybrid, work-from-anywhere environment.

In response, Aruba recommends selecting market-leading SD-WAN and cloud security services versus the single SASE vendor option, enabling network administrators to protect and optimize the network, primarily due to four reasons:

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December 15, 2021
23:36
Weekly internet health check, US and worldwide
» ‎ Network World

Tags: [edit]

The reliability of services delivered by ISPs, cloud providers and conferencing services (a.k.a. unified communications-as-a-service (UCaaS)) is an indication of how well served businesses are via the internet.

ThousandEyes is monitoring how these providers are handling the performance challenges they face. It will provide Network World a roundup of interesting events of the week in the delivery of these services, and Network World will provide a summary here. Stop back next week for another update, and see more details here.

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22:03
Enterprise networking, 2022: Applying remote-work lessons as employees return to the office
» ‎ Network World

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As employees return to the office, IT teams can apply the lessons they learned supporting remote workers to transform their networks.

Technologies such as SD-WAN and secure-access service edge (SASE) could continue to be useful. Network-as-a-service, (NaaS), is still in its early stages but could provide agility when it comes to acquiring network equipment. But, as the chip shortage and broader supply-chain issues continue to plague the tech industry, IT must be prepared to make compromises and prioritize needs in order to complete essential network projects.

Brandon Butler, a research manager at IDC covering enterprise networking, joins Juliet to discuss what enterprise networking trends he predicts to see in 2022.

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16:26
BrandPost: What Will Drive Network Modernization in 2022?
» ‎ Network World

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Networks are vital to digital business, enabling essential operations, providing situational awareness, and delivering strategic insights. As businesses transform, networks must change. But how? What will networks look like in 2022? And how are organizations marshaling their resources to build the networks that will meet tomorrow’s needs?

To answer those questions, IT practitioners, consultants, and influencers joined in an @IDGTechTalk Twitter chat on Dec. 10, 2021, sponsored by @ComcastBusiness. The hour-long session was moderated by IDG social media manager Clare Brown. In addition, the chat was tracked in real-time by IDG content strategist Jim Malone, IDG contributing editor Pete Bartolik, and industry expert Isaac Sacolick, president of StarCIO.

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0:26
Equinix expands adds more processors to its bare-metal service
» ‎ Network World

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Data-center giant Equinix has expanded its bare-metal services to offer CPU, GPU, and AI processors on its Equinix Metal service offering.

The service now includes AMD’s Milan generation of Epyc processors, Ampere’s Arm-based Altra, and Intel’s Ice Lake generation of Xeon processors.
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In November, Nvidia and Equinix announced an expanded collaboration to bring Nvidia’s LaunchPad AI platform, which includes instant, short-term access to AI infrastructure, to nine Equinix International Business Exchange (IBX) data centers globally. Enterprise accounts can test AI apps on LaunchPad, then deploy and scale on Equinix Metal or Nvidia DGX Foundry, which are also running at Equinix.

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December 14, 2021
18:03
IBM,Samsung team on unconventional, super-efficient semiconductor
» ‎ Network World

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IBM and Samsung Electronics have designed what the tech giants call an unconventionally designed semiconductor that promises to reduce energy consumption by 85% over existing chips.

The design would enable a ton of new applications including energy-efficient cryptomining and data encryption but also cell phone batteries that could hold a charge for over a week instead of days without being recharged, companies stated.
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The new semiconductor could also find its way into new internet of things (IoT) and edge devices that draw less energy, letting them operate in more diverse environments like ocean buoys, autonomous vehicles and spacecraft, the companies stated.

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18:03
IBM, Samsung team on unconventional, super-efficient semiconductor
» ‎ Network World

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IBM and Samsung Electronics have designed what the tech giants call an unconventionally designed semiconductor that promises to reduce energy consumption by 85% over existing chips.

The design would enable a ton of new applications including energy-efficient cryptomining and data encryption but also cell phone batteries that could hold a charge for over a week instead of days without being recharged, companies stated.
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The new semiconductor could also find its way into new internet of things (IoT) and edge devices that draw less energy, letting them operate in more diverse environments like ocean buoys, autonomous vehicles and spacecraft, the companies stated.

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0:01
Intel teams with hardware vendors for high-performance network card
» ‎ Network World

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Intel announced a collaboration with Inspur, Ruijie Networks, and Silicom Connectivity Solutions to design and develop new infrastructure processing units (IPU) using both a CPU and FPGA.

IPU--what Intel calls a data-processing unit (DPU)--is a programmable networking device designed to offload network processing tasks such as storage virtualization, network virtualization, and security from the CPU. That reduces overhead and frees up the CPU to focus on its primary data-processing functions. They are becoming a real growth industry, with multiple products on the market from Nvidia, Marvell, Fungible, and Xilinx.

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0:01
Intel, hardware vendors working on a high-performance network card
» ‎ Network World

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Intel announced a collaboration with Inspur, Ruijie Networks, and Silicom Connectivity Solutions to design and develop new infrastructure processing units (IPU) using both a CPU and FPGA.

IPU—what Intel calls a data-processing unit (DPU)—is a programmable networking device designed to offload network processing tasks such as storage virtualization, network virtualization, and security from the CPU. That reduces overhead and frees up the CPU to focus on its primary data-processing functions. They are becoming a real growth industry, with multiple products on the market from Nvidia, Marvell, Fungible, and Xilinx.

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December 13, 2021
23:58
The latest tape storage is faster and holds more, but is it better?
» ‎ Network World

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Magnetic storage tape has’t been the recommended destination for the initial backup copy of data for quite some time, and the question is whether LTO-9, the latest tape open standard, and other market dynamics will changed that.

Here's a look at modern tape drives, discussion of the degree to which ransomware changes the equation, and a closer look at LTO-9.
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Tape drives: Too fast for their own good?

In the 80s and early 90s, there was almost a perfect match between the speed of tape drives and the speed of the backup infrastructure. The backup drives were capable of writing at roughly the same speed that the backup system could send.

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23:58
Looking at Linux disk usage with the ncdu command
» ‎ Network World

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The ncdu command provides a useful and convenient way to view disk usage. The name stands for "NCurses disk usage". This means that it's based on ncurses which, like curses, is a terminal control library used on Unix/Linux systems. The curses part of each name is a pun on "cursor" or "cursor optimization" and is unrelated to the use of foul language.

You can think of ncdu as a disk usage analyzer with an ncurses interface. It can be especially useful when looking for disk-space hogs on a remote server for which you don't have access to a graphical interface.
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To use ncdu, you can just type "ncdu", but what you will see depends on where you have positioned yourself in the file system as it reports the space used by files and directories in that location.

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19:10
Aruba’s EdgeConnect Microbranch aims to simplify remote-work networking
» ‎ Network World

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Hewlett Packard Enterprise (HPE) subsidiary Aruba Networks has announced a new offering, called EdgeConnect Microbranch, designed to simplify the complexity of work-from-home networking for enterprises.

The COVID-19 pandemic has forced enterprises to change the way they use their networks as they had to support an increasing number of users and devices connecting from remote locations. During the pandemic the number of workers working remotely for enterprises jumped, reaching 72% of the total workforce, compared to just 38% before COVID hit, according to an IDC survey. The survey also showed that enterprises expect that more than half of their employees will work remotely in one way or another, indicating the need of a long-term shift in network architectures.

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December 09, 2021
23:00
US IT job recovery is in full swing, but employee retention can be tenuous
» ‎ Network World

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IT hires are on a record pace this year, but CIOs are under pressure to meet their company's goals to recruit talent related to security, compliance and cloud computing.
17:58
BrandPost: Keep Up With the Pace of Change with Network-as-a-Service (NaaS)
» ‎ Network World

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By: Scott Dennehy, Edge Innovation at Aruba, a Hewlett Packard Enterprise Company

Enterprise network use cases are expanding at an historic rate. Hybrid work, edge computing, the explosion of connected devices, and the constant threat of security breaches have made keeping the network’s hardware and software capabilities up-to-date an almost herculean task.

Further complicating matters are smaller IT budgets and shorter network planning cycles, driven by the impact of COVID-19. Large capital expenditures for IT and multi-year network plans are now viewed as too risky by many organizations, making it more challenging for network teams to fund and execute their strategic projects.

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December 08, 2021
23:23
IBM offers one-stop-shop for mainframe hybrid cloud initiatives
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While cloud companies such as AWS are offering enterprise customers new ways to get applications off the mainframe and into the cloud, IBM moved this week to keep them on the Big Iron.

IBM rolled out a portal it calls the IBM Z and Cloud Modernization Center which offers an assortment of tools, training, resources and ecosystem partners to help IBM Z clients accelerate the modernization of mainframe applications, data and processes to work with hybrid-cloud architectures
How to build a hybrid-cloud strategy
“The rise of hyperscalers has led many organizations to consider an application migration approach to public cloud alone, but in many cases it can be a one-way street and lock-in to one public cloud, which may have implications on cost, governance and security," wrote Ross Mauri General Manager for IBM Z in a blog about the announcement. “The IBM Z and Cloud Modernization Center helps clients leverage existing investments, rather than committing to a costly one-size-fits-all migration strategy.”

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23:23
Gartner: Diversity, equity and inclusion is key to better I&O teams
» ‎ Network World

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“Why should an I&O leader care about diversity and inclusion? Why do you need to be involved in this at all? What good will it do you?"

The answer to her questions, Debra Logan told virtual conference attendees this week, is about building better infrastructure and operations (I&O) teams.
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"I’m not asking you to have faith," said Logan, a vice president and Gartner fellow. "I’m not asking you to do it for non-business reasons. I’m not asking you to do it because someone else told you, or because you feel it’s the right thing to do. I want you to do it because it will solve the problems that keep you up at night.”

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23:22
AMD: The phoenix of tech
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Five years ago, AMD was hanging on by a thread. Sales had dropped below $1 billion per quarter. Its client and server CPUs were no longer competitive with Intel’s. Its Opteron server-CPU market share was less than one percent. Its GPU products were a little better but Nvidia had the mindshare.

Then two things happened: Dr. Lisa Su ascended to the CEO position, and it developed the Zen microarchitecture, a clean-sheet, from-scratch redesign of the x86 architecture.
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The result? Epyc server processors now account for somewhere between 10% market share, as per Mercury Research, and 16%, as per Omdia. The AMD Ryzen desktop processor is the CPU of choice for gamers. And in Q3 of 2021, AMD reported sales of $4 billion, more in one quarter than AMD did in all of fiscal 2015 ($3.9 billion).

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12:00
Using whois/jwhois on Linux
» ‎ Network World

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The whois and jwhois commands allow you to retrieve a lot of information on Internet domains--likely a lot more than you might imagine. Here's how these commands work and how they can be useful.

To get started, you probably already use nslookup to check on domain names. When you do, you'll see output like this:
```
$ nslookup networkworld.com
Server:         127.0.0.53
Address:        127.0.0.53#53

Non-authoritative answer:
Name:   networkworld.com
Address: 151.101.2.165
Name:   networkworld.com
Address: 151.101.66.165
Name:   networkworld.com
Address: 151.101.194.165
Name:   networkworld.com
Address: 151.101.130.165
```
The nslookup command queries name servers, so its output provides IP addresses for the queried domain and verifies the domain name is valid, but whois commands provide extensive details on the domain registration, domain status, responsible organizations, their locations, etc., giving you a lot more insight into domains.

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0:28
FTC investigation of Nvidia/Arm deal will only hurt Arm
» ‎ Network World

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The proposed Nvidia-Arm merger had another roadblock thrown in front of it when the US Federal Trade Commission’s filed a lawsuit objecting to the $40 billion deal last week.

The acquisition met with almost immediate opposition from UK entities when it was announced in September 2020. Now, 15 months laster the FTC weighs in and has set an administrative trial for Aug. 9, 2022.

“Tomorrow’s technologies depend on preserving today’s competitive, cutting-edge chip markets,” said Holly Vedova, director of the FTC’s Bureau of Competition in a statement. “This proposed deal would distort Arm’s incentives in chip markets and allow the combined firm to unfairly undermine Nvidia’s rivals.”

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0:28
APIs pose the latest threat of networking-vendor lock-in
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In my surveys of enterprises, the number worried about vendor lock-in has hovered around 90% for 30 years. When you ask enterprises how they avoid it, they respond “standard interfaces” or “open-source”. Even today, the percentage who include “managing APIs” in their list of lock-in avoidance measures is in the statistical noise level, but APIs are perhaps the fastest-growing lock-in problem today, and they’re surely going to become a major problem in the future.

API stands for “application programming interface”, but the term is broadly used in software today to describe the interfaces between all the software components used in an application, a cloud, or even a network. APIs let pieces of software talk with each other, and they’re essential in every situation where software components rather than hardware devices are connected. What’s creating a challenge in lock-in from APIs today is the fact that networking is shifting more to software, which means it’s shifting to a model where APIs are just as important as those standard interfaces, and enterprises aren’t tracking that important shift.

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0:27
Aryaka broadens enterprise targets with managed SD-WAN, SASE services
» ‎ Network World

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Aryaka Networks is looking to target more enterprises with a new managed secure access service edge (SASE) offering and an improved, lower cost SD-WAN offerings.

Aryaka is known for offering WAN and SD-WAN services over its global Layer 2 network with more than 40 points of presence. The new services spring from that backbone to provide additional, flexible WAN services.
SD-WAN buyers guide: Key questions to ask vendors
The first is based on a new iteration of Aryaka’s L2 core—the L3—which is optimized for cost and non-mission critical applications or sites that don’t require top-shelf performance. The L2 core is optimized for performance-sensitive applications.

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December 07, 2021
15:12
Gartner: Key infrastructure and operations trends to dominate 2022
» ‎ Network World

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The impact of COVID on the workforce is making IT more challenging for infrastructure and operations (I&O) leaders, but it’s also a chance for them to drive some serious business changes and increase resiliency, according to jGartner.

“I&O leaders need to drive change, not simply absorb it,” said Jeffrey Hewitt, research vice president at Gartner, to the virtual audience at Gartner IT Infrastructure, Operations & Cloud Strategies Conference. I&O leaders are expected to deliver more adaptable and resilient service from anywhere—and for an increasingly distributed workforce, Hewitt said.

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11:00
How to buy SASE
» ‎ Network World

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Wouldn’t it be great if there were a cloud-based service that combined networking and security so that users located anywhere could safely and efficiently access applications and data located anywhere? That’s the aim of SASE (rhymes with gassy). SASE isn’t a single product, but rather it’s an approach, a platform, a collection of capabilities, an aspiration.

Gartner coined the term Secure Access Service Edge in a 2019 research report, and the name stuck. Vendors have been doing backflips trying to cobble together complete SASE offerings, which would include at a minimum software-defined WAN (SD-WAN), secure Web gateway (SWG), cloud access security broker (CASB), firewall-as-a-service (FWaaS) and zero trust network access (ZTNA).

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0:05
Amazon announces third generation of Graviton processors
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At its annual re:Invent conference, Amazon Web Services announced the newest generation of its Arm-based Graviton processors, the Graviton 3, which the company claims will be 25% or more faster than the last-generation chips in key workloads.

The 25% is likely for integer workloads, because AWS also said the Graviton 3 boasts double the floating-point performances (FLOP), a three-fold performance improvement in machine-learning workloads, and better cryptographic performance. AWS also claims the new chips will use 60% less power.
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The chips will power new EC2 C7g instances in the AWS cloud. The chips and instances will be the first to use DDR5 memory, which delivers 50% higher bandwidth than DDR4 but with a much lower power draw.

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0:00
Cisco hit with software and physical issues
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Cisco Systems has been hit with an unusual double-whammy of issues, one of them in software and one in hardware.

First, the more serious issue, a firewall flaw. Security researcher Positive Technologies, which hunts for security vulnerabilities, posted a warning that a vulnerability in Cisco firewall appliances could allow hackers to cause them to fail.

The problem is in the Cisco Adaptive Security Appliance (ASA) and Cisco Firepower Threat Defense (FTD) firewalls. Forrester Research says there are more than a million of them deployed worldwide. Positive assessed the severity level of vulnerability as high and recommended users should install updates, which are available, as soon as possible.

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December 06, 2021
23:52
Use dmseg to check your Linux system's kernel message buffer
» ‎ Network World

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The dmesg command displays the content of the kernel's message buffer since the system's most recent boot. It displays a lot of details on how the system is working and problems it might be running into that you won't normally see. That can be a lot of data, but there are several tricks for paring it down.

For example, Even though the system queried below has only been up a little more than three days, it's collected more than a thousand lines of data.
```
$ dmesg | wc -l
1034
```
Linux security: Cmd provides visibility, control over user activity [Get regularly scheduled insights by signing up for Network World newsletters.]
If you type only dmesg, you will see all available data. Sudo access is not required. You can also pipe the output of dmesg to the more and less commands to scan through it or simply pipe the output to grep, but the command itself provides a lot of options for selecting the most relevant information from the file.

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23:29
Bumps in the road for open RAN
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Open standards for radio access networking (RAN) technology have long been hyped as a way for mobile network operators to control the costs of 5G deployment, but some experts are beginning to question that potential, and legal difficulties for vendors working on the standard continue to arise.

The idea behind open RAN is relatively simple. Using a standards-based approach to carrier radio equipment would allow carriers to mix and match the gear they use in base stations--freeing them from the traditional vertical integration of such equipment and potentially making the market more competitive, driving prices down.
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But this requires a considerable degree of coordination from companies like Ericsson, Nokia and Samsung that aren’t used to working cooperatively with one another. And some reports suggest that the hype around open RAN is considerably exaggerated.

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15:29
AWS partners to provide more cloud options
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AWS is offering a variety of new connectivity options for enterprise customers to access distributed cloud resources.

The new options – unveiled at the company’s re:Invent conference—are designed to give businesses new network options and build more secure access to on-premises and other cloud applications.
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A new network offering called AWS Cloud WAN is a managed service that promises to make it easier to build, manage, and monitor global traffic across a wide area network that spans multiple locations and networks—eliminating the need to configure and manage the different networks individually using different technologies.

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14:10
Weekly internet health check, US and worldwide
» ‎ Network World

Tags: [edit]

The reliability of services delivered by ISPs, cloud providers and conferencing services (a.k.a. unified communications-as-a-service (UCaaS)) is an indication of how well served businesses are via the internet.

ThousandEyes is monitoring how these providers are handling the performance challenges they face. It will provide Network World a roundup of interesting events of the week in the delivery of these services, and Network World will provide a summary here. Stop back next week for another update, and see more details here.

Get regularly scheduled insights by signing up for Network World newsletters

To read this article in full, please click here
12:00
How wireless WAN can make SD-WAN more agile and resilient
» ‎ Network World

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Wireless WAN has begun to rise in availability and utility, and to improve in affordability. It brings wide-area connectivity to just about any physical space and can hit speeds far in excess of older single or multiple T1 links and DSL.

It has its challenges to be sure, and the biggest ones are centered on the business model. It is hard to get a WWAN connection priced the same way a wired connection is: paying for a given speed, with no arbitrary limit on how many bits can be transferred in a billing period.
SD-WAN buyers guide: Key questions to ask vendors
So IT teams using WWAN are typically faced with two unpleasant options: a) either pay a flat rate but, when a threshold number of bytes is hit, face a sharp decrease in speed; or b) pay a per-gigabyte overage fee for usage past the threshold. Sometimes carriers want to push both options—decreased speed and pay-by-the-drink overage costs.

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December 03, 2021
22:48
BrandPost: The 3 Drivers of Zero Trust Network Access Implementation
» ‎ Network World

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It's human nature to put off tasks that aren't urgent. Whether it's planning that never ends or simple procrastination, it's easy to let timelines slip until an external force lights a fire under the project. At many organizations, that's what's happened with Zero Trust Network Access (ZTNA).

The zero-trust security model has been around for a long time now and it's well understood that it improves security because it forces ongoing verification of users and devices, the creation of small zones of control, and grants only minimal access to users and devices. Unlike a VPN, devices and users aren't able to access anything until they have proven that they can be trusted, whether they're outside or inside the network perimeter. The ZTNA verification and application access policies are the same, no matter where the user or device may be located.

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December 02, 2021
23:16
There's a 3-6 month wait for Wi-Fi 6
» ‎ Network World

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Wi-Fi 6 is the most sought-after wireless LAN technology by enterprises, but the global chip shortage is preventing it from getting into the hands of IT pros as quickly as desired, according to the Dell’Oro Group.

The usual amount of lead time required for a purchase of new Wi-Fi equipment is two to four weeks, according to the report’s author, Tam Dell’Oro, the CEO and founder of the group. “Now, we’re looking at between three and six months,” she said.
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The worldwide dearth of silicon is to blame. According to Dell’Oro, the biggest enterprise Wi-Fi vendors were the first to feel the pinc eharlier this year. Cisco, Extreme, and HPE/Aruba reported in their second-quarter results that the shortage was affecting supply, and many more US and European sellers reported similar problems in the third quarter.

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21:30
Review of two Cradlepoint mobile routers
» ‎ Network World

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At the transportation organization where I work, we employ two Cradlepoint mobile-router models in our vehicles: the industrial IBR-1700 vehicular routers in our 97 buses and eight smaller IBR-900 vehicular routers in maintenance trucks, operations vans, and other multipurpose vans.

The reason for these cellular routers in the buses is to provide a WAN connection to systems on the buses including GPS, electronic signage, passenger counters, and fareboxes.
How they are networked
These information-gathering systems connect to the primary processing device on the vehicles called the medius box, which is part of our computer-aided dispatch/automatic vehicle location (CAD/AVL) setup. The medius boxes are connected to the Cradlepoint routers, which link over 4G LTE to a server that collects and manages all of the vehicle’s location and onboard media data.

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12:00
LoRa takes a trip to the moon and back, chirping all the way
» ‎ Network World

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LoRa is living up to its name, literally.

A shortened version of “long range” (ironic!), LoRa is a wide-area wireless modulation technique that encodes information on radio waves. LoRa, which has been around since 2015, is derived from Chirp Spread Spectrum (CSS) technology and uses chirp pulses to transmit small bits of data. It also uses very little power. The proprietary technology is owned by semiconductor supplier Semtech Corp
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LoRa’s value is in transmitting data for sensors and other connected devices that require little power to operate. Not only can LoRa withstand disturbances, it can transmit data at longer ranges than better known wireless technologies such as Wi-Fi and Bluetooth. So long, in fact, that demonstrations of LoRa’s transmission capabilities now must extend into near space.

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December 01, 2021
23:02
BrandPost: Data Center Disaggregation 101 – How to Build a New Edge Computing Infrastructure
» ‎ Network World

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As the data center continues to become more disaggregated, the data center itself is also becoming part of a larger distributed ecosystem that includes cloud resources and edge computing. With this shift comes the need to reshuffle IT assets. For companies that have for decades been locked into rigid, expensive single-vendor data center infrastructure, the prospect of disaggregation is extremely appealing.

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November 30, 2021
22:50
AWS wants to get your mainframe apps into the cloud – fast
» ‎ Network World

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AWS is now offering a mainframe service that promises to help Big Iron customers interested in moving apps to the cloud cut that migration time by two-thirds.

The goal of AWS Migration Acceleration Program for Mainframe is to get those customers off of the Big Iron “as fast as they possibly can” in order to take better advantage of the cloud, according to Adam Selipsky, CEO of AWS, speaking at Amazon’s AWS re:Invent conference.
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“It can be a messy business and involves a lot of moving pieces, and it isn’t something that people really want to do on their own,” Selipsky said. “And while AWS partners can help with the transition, it can still take a long time.”

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22:36
BrandPost: Battery Health Monitoring: A First Step Toward Predictive Capability in UPS Management
» ‎ Network World

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The humble battery is responsible for running so many devices, but it usually only draws attention when it drains. In the IT infrastructure, where batteries are necessary for backup power supplies, the attitude toward them isn’t much different. IT professionals in charge of uninterruptible battery supplies (UPSs) typically get the responsibility of UPS management by default and are too busy with a lot of other tasks.

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20:02
AWS targets IPv6 migration for serverless, container workloads
» ‎ Network World

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Amazon Web Services has launched new support for IPv6-only subnets that can meet the needs of workloads that require more IP addresses than IPv4 can readily provide.

The service is available through Amazon Virtual Private Cloud (VPC) and suitable for workloads such as serverless and container applications, according to a blog by Rohit Aswani, a senior specialist solutions architect and Aditya Santhanam, a senior product manager, both with AWS. “Workloads that are constrained by the limited size of the IPv4 address space can now migrate to an IPv6-only environment on AWS to scale up,” they wrote.

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0:00
Quantum primacy: Is it real (and if so, does it matter)?
» ‎ Network World

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The nexus of the ongoing competition among nations and corporations (such as Google and IBM) to demonstrate quantum primacy has shifted to a university in China where not one, but two experimental quantum computers reportedly have shown that quantum primacy is attainable.

Quantum primacy is when a quantum computer is able to solve computational problems that are beyond the ability of traditional “classical” computers, yoked as they are to their quaint system of ones and zeroes.
Researchers show quantum computers can reason
Don’t get me wrong; classical computers long have served with distinction. So did the abacus in its day. However, as society’s computational challenges became more complex--such as splitting a restaurant bill 11 ways among your cheap and quarrelsome family members--this ancient calculating device eventually gave way to the digital calculator.

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0:00
Shortcuts for adding multiple lines of text to files on Linux
» ‎ Network World

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There are a number of ways to add text to files on Linux systems without having to open an editor, such as the echo and printf commands. On the other hand, when you need to add A LOT of text, the technique you use can make the job tedious or a piece of cake.

This post describes some of the commands you can use and the problems and benefits you can expect.

Also see: How to loop forever in bash on Linux

The echo commands append lines of text to existing files in a straightforward way:

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November 29, 2021
20:30
BrandPost: IT Teams Dealing with Great Expectations and Stress
» ‎ Network World

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At some companies, it seems as though IT teams have transformed from company scapegoat to company G.O.A.T. (greatest of all time). Amidst a momentous digital transformation, IT teams were essential in easing the massive business disruptions of 2020 and 2021 by enabling a massive shift to remote work and rapid upswing in digital commerce.

With anticipation that 2022 will be a more stable year than the previous two, it’s a good time to examine the role of IT and the expanding expectation of how teams can support and secure line-of-business (LOB) initiatives outside of traditional security perimeters. That was the topic eagerly debated by participants in an #IDGTechTalk Twitter chat sponsored by @ComcastBusiness November 18th.

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19:05
SmartNICs set to infiltrate enterprise networks
» ‎ Network World

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Enterprise infrastructure that supports data center, cloud and edge networks could someday be dominated by one of its tiniest components--the smartNIC or data processing unit (DPU).

Use of smartNICs in the enterprise is still evolvinging, but the idea behind them--offloading server CPU duties onto a separate device to free up server cycles--is not new. Specialized hardware accelerators such as graphics processing units (GPU), field-programmable gate arrays (FPGA), and focused NICs have offloaded CPU workloads in telco, financial, and scientific application processing.
NaaS is the future but it's got challenges
Looking ahead, users and vendors see a way to reduce enterprise costs, improve performance and increase security with smartNICs.

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September 24, 2021
18:54
Cisco patches three critical holes in IOS XE software
» ‎ Network World

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Cisco has patched three critical security holes in its IOS XE software that's used across a variety of its core routers and switches.

The three critical warnings are part of a big release of 32 security alerts, many of which are IOS XE-related, including firewall, SD-WAN and wireless access vulnerabilities.
Linux security: Cmd provides visibility, control over user activity
Of the critical patches, the worst is a weakness in the Cisco IOS XE Software for Cisco Catalyst 9000 Family Wireless Controllers; it's rated as a 10 out of 10 on the Common Vulnerability Scoring System (CVSS).

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12:00
Intel: Under attack, fighting back on many fronts
» ‎ Network World

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At first glance, Intel doesn’t look like a company under siege. In its last fiscal year, it recorded $77.8 billion in sales and $20 billion in profit. Its market capitalization is $220 billion as of mid-September 2021.

And yet it is. When you’re the leader, all your competition is gunning for you. Intel is wrestling with a loss of leadership in manufacturing and process nodes, it’s losing share to a very resurgent AMD, an unrelenting Nvidia is challenging Intel for AI dominance, the Atom processor failed spectacularly against Arm in the mobile market, and it’s on its third CEO in three years.
More about Intel:
But Intel revels in the competition. “Our success in so many markets makes us targets for lots of companies,” said Lisa Spelman, corporate vice president and general manager of the Xeon and memory group. “So it’s not a surprise that we have competitors that want a piece of that.”

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September 23, 2021
17:28
Nutanix offers virtual private cloud HCI, multicloud workload management
» ‎ Network World

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Nutanix is releasing enhancements to its AOS operating system and Era database-management service designed to make it easier for enterprises to manage data, workloads, and business-continuity security tools in hybrid cloud environments via software-defined networking capabilities

AOS and Era are both components of the Nutanix Cloud Platform. AOS 6, the new version of Nutanix's hyperconverged infrastructure (HCI) software, is designed to simplify network management across multiple clouds and enable enterprises to build virtual private clouds. Nutanix announced the updates at its .NEXT event this week.

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September 22, 2021
21:10
14 things you need to know about data storage management
» ‎ Network World

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When it comes to storing data, there is no ‘one-size-fits-all’ solution, so before you decide where or how to store your data, first understand the amount and type you have and why you need to store it.
How to make sure data that should be backed up gets backed up
So how do you formulate a sound data-storage management strategy? IDG asked dozens of storage and data management experts, which resulted in these top 14 suggestions regarding what steps you need to take to choose the right data storage solution(s) for your organization—and how you can better ensure your data is properly protected and retrievable.

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15:15
BrandPost: Zero Trust Implementation is a Marathon, Not a Sprint
» ‎ Network World

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Although no one wants to say the quiet part out loud, security isn't easy. If it were, there wouldn't be so many successful cyberattacks. Virtually everyone agrees that the concepts behind the zero-trust security model make sense. Instead of assuming anyone or anything that has gained access to the network can be trusted, assume the opposite. Nothing can be trusted anywhere, whether outside or inside the network perimeter.

Zero trust sounds great on paper, but organizations have been slow to implement it. According to a recent ESG report, "The State of Zero trust Security Strategies," only 13% of organizations have strong adherence to zero-trust principles and 54% have been working on zero trust for less than two years. Although 74% are very familiar with the concepts, 76% expect zero trust to be complex to implement.

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0:40
Weekly internet health check, US and worldwide
» ‎ Network World

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The reliability of services delivered by ISPs, cloud providers and conferencing services (a.k.a. unified communications-as-a-service (UCaaS)) is an indication of how well served businesses are via the internet.

ThousandEyes is monitoring how these providers are handling the performance challenges they face. It will provide Network World a roundup of interesting events of the week in the delivery of these services, and Network World will provide a summary here. Stop back next week for another update, and see more details here.

Get regularly scheduled insights by signing up for Network World newsletters

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0:39
Lenovo extends TruScale as-a-service model to its entire portfolio
» ‎ Network World

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Lenovo is expanding its TruScale pay-per-use model to cover all its data-center products—servers, storage—and client-side devices—laptops, tablets.

This transition to a fully integrated, end-to-end, as-a-service model is part of the company’s “One Lenovo” strategy of providing its entire portfolio of clients and servers as a fully managed, on-premises cloud environment through TruScale leasing.

One Lenovo simply means laptops and desktops will be sold along with data-center products together all under one sales program. Lenovo will launch a new channel program in 2022 to encompass the One Lenovo strategy.

The everything-as-a-service announcement came at the company’s virtual Lenovo Tech World 2021 event

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0:13
How to add virtual-machine drive space in Microsoft Server Hyper-V
» ‎ Network World

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Virtualization is an essential part of modern IT infrastructure that presents many routine management tasks to sysadmins, among them increasing virtual hard-drive space when necessary. In my line of work, because of expanding log files, scaling for growing processes, and new tasks for existing servers, this is something I do at least once a month.

Here’s how to do it in a Microsoft Server Hyper-V hypervisor running Windows Server 2016 using either Hyper-V Manager or Failover Cluster Manager.

To read this article in full, please click here
September 21, 2021
0:46
Looking at your Linux system's network interface with ethtool
» ‎ Network World

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The ethtool utility on Linux allows you to view and change some of your network-driver and interface-card settings, especially for wired devices. These include their speed, whether the interface uses auto-negotiation, and whether it runs in half- or full-duplex mode. Ethtool also provides an easy way to view or troubleshoot your network interface.

More than likely, ethtool is already available on your Linux system. However, to check, you can use one or both of these commands:
```
$ which ethtool
/usr/sbin/ethtool
$ sudo ethtool —version
ethtool version 5.13
```
To get a sense of how this utility can control settings, run a command like the one below. The -h means “help”. You’ll likely find yourself looking at 10 pages or so of syntax like what is shown here.

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0:44
Tape backup as a defense vs. ransomware
» ‎ Network World

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Tape is definitely not the best choice for primary recovery, but it does have features that make it a credible option for restoring systems and data that have fallen victim to ransomware without having to pay the ransom.

The cloud has many more upsides than tape as a recovery tool in general, but there are circumstances where tape should be seriously considerd, and ransomware recovery is one of them.
How to choose the best NVMe storage array When cloud’s not good enough
Using the cloud for ransomware recovery—or not—has become somewhat of a religious discussion in many circles. Choosing the cloud offers many positive things, including cost, speed, and immediate availability—all great advantages when responding to a ransomware attack.

To read this article in full, please click here
September 20, 2021
12:00
Supermicro updates one-socket server line
» ‎ Network World

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For the longest time, single-socket servers were the bottom of the server hierarchy, using "server" chips weaker than what you might find on a desktop. There were even servers that used the Atom processor. These were departmental servers doing the most menial of tasks, like file and print serving.

But that's changing. Driven by high-core-count processors, and no doubt a desire to reduce costs, single-socket servers are getting some hefty workloads. AMD has led the way on this with its 32-core and 64-core EPYC processors that can do more with one chip than what a five-year-old dual-socket server can do. Dell has the servers available.

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September 16, 2021
23:28
Cisco forecasts a bright future for network, app, hybrid work technologies
» ‎ Network World

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In a wide-ranging Investor Day conference Cisco executives outlined what they described as a $900 billion total market of high-level technology targets the networking giant expects to be a dominant force in developing toward in the next four years.

Those targets include the six areas Cisco has been building toward for the past couple years, including agile networks, optimized applications, hybrid work, the Internet of the future, end-to-end security and edge networking capabilities but also other areas such as cloud security, hybrid cloud, IoT and more.
The 10 most powerful companies in enterprise networking 2021
“We have built a portfolio designed for the modern world, and driven compelling new innovation from Cisco Plus and the Webex Suite to Silicon One and Secure X just a few examples of key technologies that we have provided over the past few years,” said Chuck Robbins, Cisco CEO.

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18:32
Palo Alto shapes SASE package for hybrid enterprises
» ‎ Network World

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Palo Alto Networks has bolted together its SD-WAN and security technologies to offer an integrated, cloud-based, secure-access service edge (SASE) offering aimed at simplifying distributed enterprises.

Called Prisma SASE, the package brings together the company’s core Prisma Access package of cloud-based, next-generation security gateways with its Prisma SD-WAN technology it got when it bought CloudGenix for $420 million last year.

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16:57
BrandPost: How to Design Your Wireless Network for Wi-Fi 6E
» ‎ Network World

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By Peter Thornycroft, Office of the CTO at Aruba, a Hewlett Packard Enterprise company.

For most organizations, whether designing a wireless network for a greenfield deployment or augmenting an existing one to accommodate 6Hz, there are several factors to consider for Wi-Fi 6E. Any discussion of how to introduce Wi-Fi 6E and the 6GHz band will depend on specifics on the ground, including existing switches, cabling, and priority locations…and most importantly, the access points (APs) themselves.
Aruba

To read this article in full, please click here
12:00
DHCP: How to work with user classes on Windows
» ‎ Network World

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Whether in an existing network or a new one, there is an aspect of design that cannot be skipped: deciding if handing out IP addresses will be dynamic (automatic) or manual (one-by-one) or—the most common—a combination of the two.

By choosing to distribute them dynamically you are choosing to use a dynamic">[https:] host configuration protocol (DHCP) service somewhere on your network, and there can be some tricks to that regardless of what server you use. For this discussion, I will describe how to use user classes on a Windows DCHP Server to specify a range of IP addresses and to assign range-specific DHCP options.

To read this article in full, please click here
11:00
What to expect from SASE certifications
» ‎ Network World

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Secure access service edge (SASE) is a network architecture that rolls SD-WAN and security into a single, centrally managed cloud service that promises simplified WAN deployment, improved security, and better performance.

According to Gartner, SASE’s benefits are transformational because it can speed deployment time for new users, locations, applications and devices as well as reduce attack surfaces and shorten remediation times by as much as 95%.

With the pandemic, adoption of SASE has been on an upward swing. A June report from Sapio Research, commissioned by Versa Networks, finds 34% of companies are already using SASE, and another 30% plan to in the next six to 12 months.

To read this article in full, please click here
September 15, 2021
17:49
Juniper enables Mist to handle network-fabric management
» ‎ Network World

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Juniper Networks is embracing an open campus-fabric management technology supported by other major networking vendors and at the same time making it simpler to use by removing much of the manual work it can require.

The company is adding Ethernet VPN-Virtual Extensible XLAN (EVPN-VXLAN) support to its Mist AI cloud-based management platform let customers streamline network operations.

EVPN-VXLAN separates the underlying physical network from the virtual overlay network offering integrated Layer 2/Layer 3 connectivity as well as programmability, automation and network segmentation among other features. The open technology is offered in a variety of forms by most networking vendors including Cisco, Arista, Aruba and others.

To read this article in full, please click here
September 14, 2021
23:39
IBM ships high-density tape drives based on lastest spec
» ‎ Network World

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IBM announced the general availability of the industry’s first magnetic tapes and drives based on the LTO-9 Ultrium specification for massive data capacity and resilience.

The Linear Tape-Open (LTO) 9 spec features a 50% improvement in capacity over LTO-8, which translates to 18TB native capacity, or 45TB after data is compressed. Fujifilm and Sony announced media last month, but IBM is the first with a drive.

To read this article in full, please click here
19:23
BrandPost: The Post-Pandemic Data Center: Trends to Watch
» ‎ Network World

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While the unprecedented global pandemic has paused our lives for more than a year and a half now, it has not slowed the massive digitization of data, often referred to as digital transformation, that is now a primary challenge as businesses evolve their digital strategies.

Digitization of the enterprise, and the resulting digital services, are rapidly increasing requirements for larger technology stacks to store, compute, analyze and connect the data. Supporting this is the Valuates Report, which projects the global data center market for power will increase from $15 billion in 2020 to $21.5 billion by 2026.

To read this article in full, please click here
17:13
BrandPost: Zero Trust, UTM, and Best-of-Breed SASE – Without Compromise!
» ‎ Network World

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In today’s cloud-first world, the WAN and network security are more intertwined than ever before. To realize the full promise of digital transformation, work from anywhere, and the Secure Access Service Edge (SASE) model, enterprises must transform both their WAN and security architectures to support business applications hosted and accessed from anywhere, by anyone authorized to access them, and from any device.

Zero Trust: Securing the Edge by Application, User/Device Identity, and Role-Based Context

With the increase in cloud applications, mobile devices, remote workers, and IoT-connected devices, enterprises must align their security policies based on business intent while also striving for consistency. Aruba ClearPass integration with the Aruba EdgeConnect SD-WAN edge platform augments application intelligence with the user and device identity and role information. The additional identity-based context enables fine-grained segmentation and consistent security policy enforcement that can be enforced network-wide, from the edge to the cloud, while also accelerating troubleshooting and problem resolution.

To read this article in full, please click here
12:00
Managing and monitoring swap space on Linux
» ‎ Network World

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Most of us don't often think about swap space unless we run into a problem on our systems that suggests we don't have enough. Even so, viewing and gauging the adequacy of swap space on a system is not overly complicated, and knowing what's normal for your system can help you spot when something is wrong. So let's check out some commands that can help you look into your swap space. But first, let's review some fundamentals.
What swap space is and how it's used
Swap space is disk space that acts something like an extension of memory. It gets used when the system's physical memory (RAM) is full and the system needs more memory resources. It's called "swap" because the system will move some inactive pages in memory into the swap space so that it can accommodate more data in RAM. In other words, it provides a way to free up RAM on a busy system.

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September 13, 2021
23:33
BrandPost: While Remote Work is Here to Stay, Temporary Solutions Must Go
» ‎ Network World

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For many organizations, empowering employees to continue to work from home after the pandemic, at least part of the time, is part of their new normal. There are plenty of reasons for this. First, employees overwhelmingly prefer the flexibility and work-life balance that work-from-anywhere (WFA) provides. And second, a new study from Stanfordshows that productivity increased a jaw-dropping 47% YoY in 2020, with most of that gain led by remote workers. And at the same time, many organizations have realized significant savings due to reduced costs associated with a dark physical campus.

To read this article in full, please click here
18:03
Gartner: IT skills shortage hobbles cloud, edge, automation growth
» ‎ Network World

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Gartner says the current paucity of skilled IT workers is foiling the adoption of cloud, edge computing, and automation technologies.

In its "2021-2023 Emerging Technology Roadmap" based on surveying 437 global firms, Gartner found that IT executives see the talent shortage as the most significant barrier to deploying emerging technologies, including compute infrastructure and platform services, network security, digital workplace, IT automation, and storage.

To read this article in full, please click here
12:00
VMware CEO looks to accelerate enterprise multicloud expansion
» ‎ Network World

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Since he helped build the highly successful ship that is VMware, it is widely expected the company’s CEO Raghu Raghuram, appointed in June, won’t rock that boat too much, at least in the near term.
VMware
Raghuram is credited with helping build and grow the company’s core virtualization and multicloud business as well as its software-defined data center strategy. VMware also credits Raghuram with driving partnerships with Dell Technologies and hyper-scaler customers.

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12:00
Lenovo and VMware partner for resilient edge servers
» ‎ Network World

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VMware and Lenovo have collaborated on edge computing systems, with the goal of making them more robust and resilient.
Tech Spotlight: Edge Computing
- 4 essential edge computing use cases (Network World)
- Edge computing's epic turf war (CIO)
- Securing the edge: 5 best practices (CSO)
- Edge computing and 5G give business apps a boost (Computerworld)
- Amazon, Google, and Microsoft take their clouds to the edge (InfoWorld)
As part of the deal, Lenovo's Infrastructure Solutions Group (ISG) will pre-load VMware's edge software on its ThinkSystem SE350 Edge servers, a pair of ruggedized servers designed specifically for edge deployments. This includes vSphere, vSan, and Tanzu.

To read this article in full, please click here
September 10, 2021
22:54
What is MPLS: What you need to know about multi-protocol label switching
» ‎ Network World

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The thing about MPLS is that it’s a technique, not a service — so it can deliver anything from IP VPNs to metro Ethernet. It's expensive, so with the advent of SD-WAN enterprises are trying to figure how to optimize its use vs. less expensive connections like the internet

Did you ever order something online from a distant retailer and then track the package as it makes strange and seemingly illogical stops all over the country.

That’s similar to the way IP routing on the Internet works. When an internet router receives an IP packet, that packet carries no information beyond a destination IP address. There is no instruction on how that packet should get to its destination or how it should be treated along the way.

To read this article in full, please click here
22:42
BrandPost: IT Scalability as a Competitive Advantage
» ‎ Network World

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The global pandemic waxes and wanes, but it has not slowed the massive digitization of data, often referred to as digital transformation, that is now challenging large enterprises and government organizations that are attempting to deploy new digital strategies. Since 2016, the digital transformation phenomena have generated 90% of the world’s data and this astonishing growth shows no sign of slowing.

Digital transformation is rapidly increasing requirements for larger technology stacks to store, compute, analyze and connect the data. All of this requires more power as evidenced by the Valuates Report, which projects the global data center market for power increasing 43% from $15 billion in 2020 to $21.5 billion by 2026.

To read this article in full, please click here
22:06
BrandPost: The Post-COVID Digital Transformation of the Data Center
» ‎ Network World

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In the early days of the digital era, data centers were mysterious buildings shrouded in secrecy. They were huge, stark buildings billowing steam and looming in the distance. And the secrecy is understandable when you consider that for the enterprises using them, their IT operations within these buildings were the “crown jewels” supporting their businesses.

While some enterprises chose to build and manage their own data centers, others have chosen to outsource their IT environment to third-party, multi-tenant colocation data centers for their shared resources and economies of scale. Those early centers were considered quite simple. They provided the secure data center space, power and connectivity (ping, power and pipe) for companies to outsource their IT environment.

To read this article in full, please click here
20:07
Palo Alto launches an enterprise-grade security pack for remote workers
» ‎ Network World

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Palo Alto Networks has rolled out a Wi-Fi based package that the company says provides remote workers with enterprise-class security features.

Called Okyo Garde, the bundle incuds Wi-Fi-6-based hardware and mobile application-security software that includes threat-intelligence updates, and sells the hardware and software to enterprises as a customizable subscription. The package also offers malware and ransomware prevention, phishing protection, infected device detection, and suspicious-activity monitoring and control, the company said.
Linux security: Cmd provides visibility, control over user activity
Workers’ homes are becoming enterprise “branches of one” with multiple devices without IT teams or a deep set of cybersecurity protections, yet they face the same threat landscape as any enterprise, said Mario Queiroz, executive vice president of Palo Alto Networks. Threat actors may even see them as more vulnerable and therefore attractive entry points into the corporate network, Queiroz said.

To read this article in full, please click here
18:31
Cisco adds specializations to its CCNP cert
» ‎ Network World

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Cisco’s network certification lineup underwent a major overhaul last year, and one of the big changes is that specialization options appear at the professional level with the Cisco Certified Network Professional (CCNP).

Before Cisco rearchitected its certifications, there were 10 concentrations associated with Cisco Certified Network Associate (CCNA), Cisco’s foundational certification. As of last year, the CCNA no longer has different tracks. It’s focused on networking fundamentals, and there’s only one exam.

To read this article in full, please click here
August 27, 2021
16:25
Comcast grabs SD-WAN specialist Masergy
» ‎ Network World

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Comcast is certainly serious about boosting its corporate networking business. Or the cord cutters are really causing some damage. Maybe both. Either way, Comcast Business just announced plans to acquire privately-held Masergy Communications, an SD-WAN and cloud-based security specialist.

Comcast is a public company, but Masergy is not, so terms of the deal were not disclosed. Masergy was acquired by private equity firm Berkshire Partners in 2016.

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