Network World Wireless Archives - Page 78 of 406

Kubernetes vendors target container security, operations and management

If you were kicking the tires on Kubernetes and other cloud/container services you found may have found nirvana at this week’s KubeCon + CloudNativeCon 2018 where all manner of new operational software and support from VMware, Arista and others were on display.To access the growing popularity of cloud, Kubernetes and containers, the Cloud Foundry Foundation released the results of a new survey that found among other things that 45 percent of companies are doing at least some cloud-native app development, and 40 percent are doing some re-architecting/refactoring of their legacy apps.To read this article in full, please click here

BrandPost: Top Ten Reasons to Think Outside the Router #5: Manual CLI-based Configuration and Management

We’re now more than half-way through our homage to the iconic David Letterman Top Ten List segment from his former Late Show, as Silver Peak counts down the Top Ten Reasons to Think Outside the Router. Click for the #6, #7, #8, #9 and #10 reasons to retire traditional branch routers.To read this article in full, please click here

Qualcomm makes it official; no more data center chip

A layoff of 269 people in a company of 33,000 usually isn’t noteworthy, but given where the layoffs hit, it’s notable. Qualcomm has signaled the end of the road for Centriq, its ARM-based server processor, which never got out of the starting gate.U.S. companies have to notify their state employment of layoffs 60 days before they happen, making these events less of a surprise as reporters get wind of them. A letter from Qualcomm to its home city of San Diego said 125 people would be let go on February 6, while a note to officials in Raleigh, North Carolina, says 144 people also will be cut loose.The news is a repeat of what happened last June, right down to the number of people let go and cities impacted. The cuts target several divisions, one of which is the company's data center division, which was barely staffed to begin with. The Information, which first reported on the layoffs, says the data center group will be down to just 50 people after a peak of more than 1,000. That includes the head of the group, Anand Chandrasekher, a former Intel executive.To read this article in full, please click here

How Java has stood the test of time

Java has survived for more than two decades and continues to be one of the top programming languages in use today. What accounts for the language's success and how has it changed to accommodate more modern technology?Java's rise to power Java initially appeared in 1995, evolving from a 1991 innovation called "Oak". It was apparently the right time for engineers looking to grow distributed systems. Some of the more popular languages back then -- C, C++, and even Cobol for some efforts -- involved steep learning curves. Java's multi-threading, allowing the concurrent execution of two or more parts of a program, ended the struggle to get multi-tasking working. Java quickly became the de facto language for mission-critical systems. Since that time, new languages have come and gone, but java has remained entrenched and hard to replace. In fact, Java has stood as one of the top two computing languages practically since its initial appearance as this Top Programming Languages article suggests.To read this article in full, please click here

BrandPost: 802.11ax means more IoT. Now, how do I secure it?

Like the teenager with no driving experience who takes the family SUV on the open highway, even the simplest devices that are connecting to corporate networks have the power to participate in an attack and cause serious damage.Courtesy of Moore’s Law, anything with an IP address must be now considered a potential threat. Ironically, 802.11ax introduces terrific new security features such as WPA3 and OWE. But, it also makes the WLAN even more IoT-friendly, given the support for dense concentrations of clients in environments such as smart buildings, where devices like lighting controls are as likely to be connected wirelessly as wired.To read this article in full, please click here

How to tame enterprise communications services

Communications capabilities are essential to the success of organizations everywhere. Voice, email, text messaging, multimedia messaging, file sharing, streaming video, conferencing, collaboration, and more – you can’t do business without them. But as traffic volumes and the number of communications services in use continue to grow, so do the IT and operational challenges.Communications services have historically been provisioned by, and are of course still widely available from, broadband landline and wireless carriers who seek value-added revenue to offset the commodity nature of their “big dumb pipe” core businesses. But there are also numerous third-party solution suppliers, private implementations, and unified communications (UC) product and service capabilities. In addition, an increasing number of cloud-based services – many of which are often aimed squarely at consumer end-users rather than organizations – are seeing significant organizational application, and unfortunately often via backdoor or shadow-IT routes.To read this article in full, please click here

Using the Linux ss command to examine network and socket connections

The ss (socket statistics) command provides a lot of information by displaying details on socket activity. One way to get started, although this may be a bit overwhelming, is to use the ss -h (help) command to get a listing of the command's numerous options. Another is to try some of the more useful commands and get an idea what each of them can tell you.One very useful command is the ss -s command. This command will show you some overall stats by transport type. In this output, we see stats for RAW, UDP, TCP, INET and FRAG sockets.$ ss -s Total: 524 TCP: 8 (estab 1, closed 0, orphaned 0, timewait 0) Transport Total IP IPv6 RAW 2 1 1 UDP 7 5 2 TCP 8 6 2 INET 17 12 5 FRAG 0 0 0 Raw sockets allow direct sending and receiving of IP packets without protocol-specific transport layer formatting and are used for security appliications such as nmap. TCP provides transmission control protocol and is the primary connection protocol. UDP (user datagram protocol) is similar to TCP but without the error checking. INET includes both of the above. (INET4 and INET6 can be viewed separately Continue reading

What is an SSD? How solid state drives work

That whirring you hear when you boot your computer or when it wakes from sleep mode is the sound of your hard drive’s magnetic disks beginning to spin. Conceptually not dissimilar to a record player, a hard disk drive (HDD) is an electromechanical device with an actuator arm that positions itself over spinning disks, called platters, in order to read or write information.While record players top out at 78 rpm, today’s enterprise-grade HDDs can spin at 15,000 rpm. Even at that speed, however, there are unavoidable delays associated with heads finding the spot on the drive that contains the data being requested. And sometimes a drive may need to read from multiple locations in order to complete a command, multiplying wait times.To read this article in full, please click here

Edge-chips could render some networks useless

Hardware processing should replace a device’s dependency on networks, some scientists say. Making machines more efficient, saving power, and resilience is behind the reasoning.“Devices like drones depend on a constant Wi-Fi signal. If the Wi-Fi stops, the drone crashes,” an article about researchers at Binghamton University in Binghamton, New York, says.But if you make a device independent of any linking, it could become more resilient, the researchers say. Plus, the more processing work one can do at the source — in other words on the machine — the more energy you’ll save because you won’t have to come up with power to communicate.To read this article in full, please click here

Is an SD-WAN managed service right for you?

For enterprises considering an SD-WAN solution, one of the key choices will be who will implement and manage it.For some enterprises this is a relatively straightforward decision; for others the choice may require more deliberation. In either case, best-practice sourcing dictates that this decision be made up front – to achieve exceptional results, the sourcing strategy, approach and execution following must be tailored to the desired self-managed or fully-managed solution. [ Also see What to consider when deploying a next generation firewall. | Get regularly scheduled insights by signing up for Network World newsletters. ] If you have a strong and sufficiently sized internal networking team with associated software/routing and other engineering competencies, taking on the implementation of SD-WAN is more than feasible. There may still need to be development of new skill-sets to take advantage of the technology and fully understand the flavor of SD-WAN chosen.To read this article in full, please click here

Data sharing the main driver for IoT projects

Enterprises plan to invest more in Internet of Things (IoT)-related technologies in 2019, and more companies are jumping on board the IoT bandwagon. The average investment, however, remains rather modest.So says Zebra Technologies’ second annual Intelligent Enterprise Index (PDF). Zebra specializes in endpoint devices for sectors such as retail, medical, and industrial, so IoT is on its radar. The index is based on 11 metrics, and the survey was done earlier this year with IT leaders from nine different countries.To read this article in full, please click here

Data sharing is the main driver for IoT projects

BrandPost: Top Ten Reasons to Think Outside the Router – No. 6: Bringing New Sites Online Takes Too Long

In our homage to the iconic David Letterman Top Ten List from his former Late Show, Silver Peak continues to count down the Top Ten Reasons to Think Outside the Router. Click for the #7, #8, #9 and #10 reasons to replace traditional branch routers with a business-driven SD-WAN platform.To read this article in full, please click here

What’s hot in enterprise networking for 2019

With 2019 just around the corner there's a lot of developments and advances coming that will affect how enterprises make use of technologies for SD-WAN, IoT, Wi-Fi, data centers, the cloud and more. Here's a selection of some of the coming trends that industry pros see coming next year.What will be hot for Cisco in 2019? Getty Images Software, software and more software. That seems to be the mantra for Cisco in 2019 as the company pushes software-defined WANs, cloud partnerships, improved application programs and its over-arching drive to sell more subscription-based software licenses. Check it out.To read this article in full, please click here

10 predictions for the data center and the cloud in 2019

It’s that time of year again, where vacations are planned, going to the mall looks like something out of “Braveheart,” package theft from doorsteps is rampant, and people try their best not to offend. In other words, it’s Christmastime.This leads to an inevitable tradition of looking back at the year and at what will come. For some time, I’ve done general looks back, but this year we are narrowing the focus to the data center and cloud, since the real battle these days is to find a balance between the cloud and on-premises implementations.[ Read also: What will be hot for Cisco in 2019? ] Much of what I am predicting has been hinted at in research or emerging trends, so I’m not sticking my neck too far out. I’m just making logical assumptions and conclusions based on past evidence. Hopefully that will improve my accuracy rate. And now …To read this article in full, please click here

10 useful and free networking tools that are Windows 10 apps

Networking tools for Windows are typically command-line programs or desktop applications. Under Windows 10, there’s a third format: apps that you download from the online Microsoft Store.Here we’re highlighting 10 networking tools that are available in the Microsoft Store and can be pinned as tile icons on the Windows 10 Start menu for convenient access. They’re all useful, and they’re all free. BE SURE NOT TO MISS: Network operations: A new role for AI and ML 7 free networking tools you must have 8 free Wi-Fi stumbling and surveying tools Review: 4 open-source network monitoring tools 18 free cloud storage options All My LAN All My LAN lists your network's IP address, its profile name, and its maximum upload and download speeds. The amount of data that has been sent and received over the network is depicted in two line charts. By moving a slider, you can adjust the charts to represent the amount of data that was transmitted throughout the current day or up to the last 30 days. The charts can be combined to view as one chart.To read this article in full, please click here

IDC: Expect 175 zettabytes of data worldwide by 2025

IDC has released a report on the ever-growing datasphere, what it calls the collective world’s data, and just like the recent Cisco study, the numbers are staggering. IDC predicts that the collective sum of the world’s data will grow from 33 zettabytes this year to a 175ZB by 2025, for a compounded annual growth rate of 61 percent.The 175ZB figure represents a 9 percent increase over last year’s prediction of data growth by 2025. IDC's “Data Age 2025” whitepaper, sponsored by Seagate, says the datasphere has three locations. First is the core, which includes traditional and cloud data centers, second is the edge, which includes things like cell towers and branch offices, and third is endpoints, which include PCs, smartphones, and Internet of Things (IoT) devices.To read this article in full, please click here

IoT roundup: Retrofitting vehicle tracking, plus a new IoT stadard

The Internet of Things has reached that fun phase in which everyone has started to figure out a wider array of meaningful use cases for the technology, but few of those uses are fully mature. From the industrial IoT and predictive maintenance to nebulous smart city tech the IoT’s hitting a new growth spurt, and one of the newest applications is headed to a highway near you.Or, actually, it’s coming to a really big parking lot somewhere near you. Fleet management is one of the long-promised applications of IoT tech that’s starting to take off lately, with announcements this month from companies like Silicon Labs and Cognosos, who rolled out a vehicle-tracking system for lot operators.To read this article in full, please click here

IoT roundup: Retrofitting vehicle tracking, plus a new IoT standard

AWS does hybrid cloud with on-prem hardware, VMware help

Amazon Web Services took square aim at the data center this week by tying in VMware technology and rolling out two new services and on-remise hardware to help customers build and support hybrid clouds.The new service, called Outposts, lets users choose between on premises servers and storage, which they can order in quarter, half, and full rack units. Outposts can be upgraded with the latest hardware and next-generation instances to run all native AWS and VMware applications, AWS stated. A second version VMware Cloud on AWS Outposts lets customers use the a VMware control plane and APIs to run the hybrid environment.To read this article in full, please click here

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