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Category Archives for "Network World Wireless"

Cisco coughs up another $1.9B to buy Acacia

After some saber-rattling, Cisco has sweetened the pot to acquire optical technology firm Acacia. The amended agreement calls for Cisco to pay $4.5 billion instead of the originally agreed upon $2.6 billion deal.The companies said the amended acquisition should close by the end of the first calendar quarter of 2021, but it is still subject to closing conditions, including Acacia stockholder approval. Upon completion of the acquisition, Acacia CEO Raj Shanmugaraj and company employees will join Cisco's Optics business.To read this article in full, please click here

Automating responses to scripts on Linux using expect and autoexpect

The Linux expect command takes script writing to an entirely new level. Instead of automating processes, it automates running and responding to other scripts. In other words, you can write a script that asks how you are and then create an expect script that both runs it and tells it that you're ok.Here's the bash script:#!/bin/bash echo "How are you doing?" read ans [Get regularly scheduled insights by signing up for Network World newsletters.] Here's the expect script that provides the response to the query:#!/usr/bin/expect set timeout -1 spawn ./ask # ask is name of script to be run expect "How are you doing?\r" send -- "ok\r" expect eof When you run the script, you should see this:To read this article in full, please click here

Searching Wikipedia on the Linux command line with wikit

Have you ever imagined looking up some topic on Wikipedia while you're working on the Linux command line? What about displaying the results in a different language? Yes, it's possible. In fact, it's quite easy. The tool that provides this service is called wikit (Wikipedia IT).To check if wikit is installed on your system, just type "which wikit". If it is, you will get a response like this:$ which wikit /usr/local/bin/wikit If it's not, you can install it, but you might need to first install nodejs which wikit depends on and maybe npm as well with a command like one of these:To read this article in full, please click here

SolarWinds roundup: Fixes, new bad actors, and the company knew

The SolarWinds Orion security breach is unfolding at a rapid pace and the number of vendors and victims continues to grow. Each day brings new revelations as to its reach and depth. Of particular concern is the rate of infection and impact on government systems.In case you missed it, a backdoor was found in the SolarWinds Orion IT monitoring and management software. A dynamic link library called SolarWinds.Orion.Core.BusinessLayer.dll, a SolarWinds digitally-signed component of the Orion software framework was found to contain a backdoor that communicates via HTTP to third-party servers.[Get regularly scheduled insights by signing up for Network World newsletters.] After an initial dormant period of up to two weeks, the Trojan retrieves and executes commands, called jobs, that include the ability to transfer files, execute files, profile the system, reboot, and disable system services. In short, a total takeover of the machine.To read this article in full, please click here

SASE check list: 7 key evaluation criteria

The marriage of networking and security into the secure-access service edge stands to improve application performance, reduce infrastructure complexity, and protect sensitive data, and as such SASE is an attractive architecture for enterprises large and small.Due to the newness of SASE offerings, though, providers are still building and refining the features of their services, so available offerings are complex, often incomplete and require integration with customer organizations’ existing network and security architectures.To read this article in full, please click here

Deloitte: 5G to drive edge, open RAN to the forefront in 2021

Edge computing is flagged as a key networking technology for 2021 as well as open radio-access framework, both of which are fundamentally driven forward by mobile data carriers and their rush to deploy 5G, according to Deloitte.The EdgeEdge computing, including compute workloads being handled on or close to endpoints deployed outside the data center, will be among the biggest technological growth areas in 2021. Deloitte predicts that the global market for edge products will rise to $12 billion in 2021, and will continue to grow at a rate of 35% per year thereafter. Close to three-quarters of all businesses, by 2023, will deploy some form of edge computing, the researchers said.To read this article in full, please click here

Using the Linux arping command to ping local systems

The arping command is one of the lesser known commands that works much like the ping command.The name stands for “arp ping” and it’s a tool that allows you to perform limited ping requests in that it collects information on local systems only. The reason for this is that it uses a Layer 2 network protocol and is, therefore, non-routable. The arping command is used for discovering and probing hosts on your local network.[Get regularly scheduled insights by signing up for Network World newsletters.] If arping isn’t installed on your system, you should be able take care of that with one of these commands:To read this article in full, please click here

Trojan in SolarWinds security has far-reaching impact

SolarWinds says a compromise of its widely used Orion network-monitoring platform endangers the networks of public and private organizations that use it and that the problem should be remediated right away.In a security advisory, SolarWinds said customers should upgrade to Orion Platform version 2020.2.1 HF 1 as soon as possible to ensure their environment is safe. An additional hotfix release that both replaces the compromised component and provides several additional security enhancements is expected in the next day or two.The company’s managed services tools appear to be uncompromised, and the company said it isn’t aware of any similar issues with its non-Orion products, like RMM, N-Central, and SolarWinds MSP products.To read this article in full, please click here

Creating your own cowsay messenger

One of the sillier, but still fun, tools available on Linux is called "cowsay". It's used to display a phrase along with an ASCII art image of a cow.The cowsay command allows you to create messages that are less likely to be overlooked and might come across as just a little friendlier than the other thousand or so messages most of us get every day. For example:$ cowsay This is cowsay! _________________ < This is cowsay! > ----------------- \ ^__^ \ (oo)\_______ (__)\ )\/\ ||----w | || || Once cowsay is installed on your system, you can create cute little messages – and you're not limited to displaying a cow! In fact, if you wander over to the cowsay's directory –  /usr/share/cowsay/cows – you'll see that there's a fairly large collection of files available. Each includes a different image. You can choose from images as diverse as a snowman and a stegosaurus. If you want to greet your Australian friends using cowsay, you might try using the koala.To read this article in full, please click here

Wide-open spaces: Big spectrum gains to boost Wi-Fi capability in 2021

Two recent FCC decisions will dramatically increase the capabilities of new Wi-Fi systems in the coming year, providing badly needed breathing room to the unlicensed wireless world.The first allocation, announced in April, will throw open the entirety of the 6GHz spectrum range for unlicensed use, and the second, rolled out late last month, adds a small but critical amount of spectrum to the 5GHz band.Both of these decisions are important to future Wi-Fi deployments because they directly affect the amount of spectrum available for Wi-Fi to operate in. More bandwidth means larger channels, which translates directly into improved throughput for users.To read this article in full, please click here

HP Enterprise expands GreenLake program to cover HPC systems

When it bought Cray back in May 2019, HP Enterprise hinted at offering HPC systems as a service. Now it is delivering on that with the introduction of HPE GreenLake cloud services for HPC.HPE has made a lot of headway with its GreenLake program, the pay-per-use model created in response to the popularity of cloud service providers. It lets customers pay as if they are buying a cloud service, but it’s provisioned using infrastructure deployed at customer sites or in colocation facilities. Up to now it’s been used in standard IT applications, like app and Web serving or databases.To read this article in full, please click here

Multicloud management: Challenges for technology, people, processes

When it comes to managing hybrid and multicloud environments there are many options but no easy path nor lack of challenges. Tech Spotlight: Multicloud Are you ready for multicloud? A checklist (InfoWorld) 5 challenges every multicloud strategy must address (CIO) How to manage multiple cloud collaboration tools in a WFH world (Computerworld) Building stronger multicloud security: 3 key elements (CSO) While cloud computing has been around in some form for more than a decade, tools to manage its current enterprise iterations from private, on-premises, or public locations are still evolving at a rapid rate. Gartner says that more than 90 vendors—including IBM/Red Hat, VMware, CloudBolt, Flexera, Scalr, Cisco, and Nutanix—offer varying degrees of cloud-management capabilities.To read this article in full, please click here

5G-frequency auction prompts $2 billion in bids on the first day

Licenses for premium wireless bandwidth sought by service providers to build out high-performance 5G networks is being auctioned off by the Federal Communications Commission, potentially grossing up to $50 billion and enabling features that enterprises desire most. 5G resources What is 5G? Fast wireless technology for enterprises and phones How 5G frequency affects range and speed Private 5G can solve some problems that Wi-Fi can’t Private 5G keeps Whirlpool driverless vehicles rolling 5G can make for cost-effective private backhaul CBRS can bring private 5G to enterprises The spectrum on the block is a piece of what’s known as the C-band, specifically the 280MHz-wide swath of it from 3.7GHz to 3.98GHz. It provides wider channels that support faster connections and lower latency than other ranges available to carriers, analysts say.To read this article in full, please click here

Hyperconvergence as a service offers hands-off data-center management

Hyperconverged infrastructure (HCI) has made substantial inroads in enterprise environments, and vendors have responded with new use cases and purchasing scenarios, including an emerging deployment option: HCI as a service.Conventional HCI combines servers, storage and network resources into a single box, providing adopters with a gateway to simplified, centralized data-center management. HCI as a service (HCIaaS) ups the ante by enabling data-center operators to adopt HCI in a manner that promises to reduce both operational and financial overhead.Several HCI vendors, including VMware, Nutanix, Dell, and HPE, offer a managed service option, says Naveen Chhabra, a senior analyst at IT research firm Forrester. "It basically turns the capital expenditure and one-time investment into an [operating expense]," Chhabra says. "In most cases, the vendor will also manage the HCI's day-to-day operations."To read this article in full, please click here

AWS enlists partners to encourage mainframe-to-cloud migration

AWS has turned up the drumbeat to move workloads off of the mainframe and into its cloud. At its weeks-long re:Invent virtual event, Amazon Web Services said it would soon expand its Competency Program to include even more services to migrate mainframe workloads to the cloud. The services are an expansion of mainframe migration services AWS has had on its menu for the past few years.[Get regularly scheduled insights by signing up for Network World newsletters.] AWS says its Competency Program is designed to identify, validate, and promote AWS partners with demonstrated technical expertise in a given area.  In this case users looking to migrate will have access to products and services from core AWS partners, the company wrote in a blog about the new service.To read this article in full, please click here

Pure Storage offers on-demand storage service

Pure Storage, the all-flash array storage provider, has expanded its Pure-as-a-Service offering to include flexible, pay-as-you-go options for bridging public and private clouds.The company launched Pure-as-a-Service late last year, but it was based on its previous Evergreen service, which had a per-use model for clients looking to move from capex to opex economics. It provides block, file, and object data management capabilities under a single unified subscription.First stage Pure-as-a-Service was formally known as Evergreen Storage Service (ES2), which was launched out of a pilot program begun in 2016. The company notes that one of the challenges facing the industry is that "products on subscription" is often used interchangeably with true services, the difference being the former is a financial model while the latter is more of a cloud economic, operational, and customer experience model. To read this article in full, please click here

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