Category Archives for "Network World Wireless"

How to back up Kubernetes and Docker

Yes, your container infrastructure needs some type of backup.  Kubernetes and Docker will not magically build themselves after a disaster. As discussed in a separate article, you don’t need to back up the running state of each container, but you will need to back up the configuration used to run and manage your containers.Here’s a quick reminder of what you’ll need to back up.[Get regularly scheduled insights by signing up for Network World newsletters.] Configuration and desired-state information The Dockerfiles used to build your images and all versions of those files The images created from the Dockerfile and used to run each container Kubernetes etcd & other - K8s databases that info on cluster state Deployments - YAML files describing each deployment Persistent data created or changed by containers Persistent volumes Databases Dockerfiles Docker containers are run from images, and images are built from Dockerfiles. A proper Docker configuration would first use some kind of repository such as GitHub as a version-control system for all Dockerfiles. Do not create ad hoc containers using ad hoc images built from ad hoc Dockerfiles. All Dockerfiles should be stored in a repository that allows you to pull historical Continue reading

It’s the end for Windows Server 2008 support

This week's Patch Tuesday marked the end of the line for both Windows 7 and Windows Server 2008 (and 2008 R2). No more fixes will be issued for the two aged operating systems, unless you purchase a pricey extended service license.On the Windows 7 front, Microsoft has done a good job getting Windows 10 deployed through its aggressive (perhaps too aggressive) upgrade program. According to StatCounter, Windows 10 now accounts for 65% of the worldwide desktop Windows market share, and Windows 7 is down to 27%. RELATED: What to know before upgrading to Windows Server 2019To read this article in full, please click here

Google Cloud launches Archive cold storage service

Google Cloud announced the general availability of Archive, a long-term data retention service intended as an alternative to on-premises tape backup.Google pitches it as cold storage, meaning it is for data which is accessed less than once a year and has been stored for many years. Cold storage data is usually consigned to tape backup, which remains a surprisingly successful market despite repeated predictions of its demise.Of course, Google's competition has their own products. Amazon Web Services has Glacier, Microsoft has Cool Blob Storage, and IBM has Cloud Storage. Google also offers its own Coldline and Nearline cloud storage offerings; Coldline is designed for data a business expects to touch less than once a quarter, while Nearline is aimed at data that requires access less than once a month.To read this article in full, please click here

Enterprises spend more on cloud IaaS than on-premises data-center gear

Enterprise tech crossed a significant line as the decade ended. For the first time, enterprises spent more annually on cloud infrastructure services than on data-center hardware and software, according to Synergy Research Group.Synergy reports that total spending on cloud infrastructure services in 2019 will reach $97 billion, a 38% increase over the prior year. Ten years ago, that spending was near zero. Total spending on data center hardware and software, on the other hand, is expected to hit $93 billion in 2019, an increase of only 1% when compared to 2018.To read this article in full, please click here

How to deal with the impact of digital transformation on networks

Digital transformation has increased the importance of the network, particularly the edge, where customers, employees, cloud applications and IoT devices connect to the enterprise. The legacy static and non-differentiated network edge of years past is no longer sufficient for many reasons, so as companies embark on digital-transformation plans, their networks must evolve.Networking pros should be looking at, among other things, improving security and embracing software-defined networking (SDN) that supports propagating changes quickly across the network in order to accommodate the many challenges digital transformation creates.To read this article in full, please click here

HPE and Cumulus Networks partner for open storage

Cumulus Networks has announced a partnership with HPE that will see its NetQ management software run on HPE's network storage products.Under the deal, HPE's StoreFabric M-Series Ethernet switches will run Cumulus's Linux operating system and NetQ, a move that Cumulus said in a statement will deliver “a flexible networking fabric that is predictable, scalable, and reliable."[Get regularly scheduled insights by signing up for Network World newsletters.] Combining the M-Series switches with Linux and NetQ will offer enterprises a high-bandwidth, low-latency way to connect primary, secondary, hyperconverged, NAS, or object-storage systems, and is an ideal way to build an Ethernet Storage Fabric (ESF), the company added.To read this article in full, please click here

DIY communications networks to trend in 2020, says major telco

Communications networks without a centralized infrastructure will become more popular this year as folks become increasingly aware of data collection from governments and tech companies, says telecommunications provider Telenor Group.The company refers to fully encrypted mesh and peer-to-peer apps as the technology that will enable these consumer-level “off-the-grid, build-it-yourself” links. Mesh apps will also be useful in disasters where traditional networks fail.[Get regularly scheduled insights by signing up for Network World newsletters.] “Communicating without a central coordinating network is appealing to people for many reasons, and in 2020, we expect to see more go that route, especially in conflict situations, to mobilize for protests, and simply to stay below the radar,” the company says on its website.To read this article in full, please click here

Aruba reinforces SD-Branch with security, management upgrades

Aruba has taken steps to bolster the security and manageability of its branch-office networking package for customers with lots of branch sites.The HPE company enhanced its SD-Branch software with identity-based attack detection and intrusion prevention, and improvements to its SD-WAN Orchestrator to make it easier to deploy security features on a large scale.See predictions about what's big in IT tech for the coming year. Aruba’s SD-Branch software runs on its branch gateways and includes a variety of integrated features like a firewall that support LAN, WAN, Wi-Fi networks, and segmentation as well integration with the company’s ClearPass policy-management software and its cloud-based package Aruba Central. The package can integrate its data with partner security platforms such as Check Point, Palo Alto Networks, and Z-Scaler.To read this article in full, please click here

BrandPost: How to Deliver Affordable and Optimized Application Access Worldwide with SASE

Global expansion is a common goal for many enterprises. In some verticals, like manufacturing, running production lines globally is an established practice. However, deploying international sales, service, and engineering teams is becoming the norm for many other sectors including high tech, finance, retail, and more.A global enterprise footprint creates a unique set of challenges that do not occur in regional businesses. Users in a remote office will need to securely access data-center applications, cloud applications, or both. Depending on the distance between the remote location and the application—and the sensitivity of the application to high latency, packet loss, and jitter—an expensive set of technologies and capabilities will be needed to optimize the user experience.To read this article in full, please click here

Wi-Fi 6 will slowly gather steam in 2020

The next big wave of Wi-Fi technology, 802.11ax, is going to become more commonplace in enterprise installations over the course of the coming year, just as the marketing teams for the makers of Wi-Fi equivalent will have you believe. Yet the rosiest predictions of revolutionary change in what enterprise Wi-Fi is capable of are still a bit farther off than 2020, according to industry experts.The crux of the matter is that, while access points with 802.11ax’s Wi-Fi 6 branding will steadily move into enterprise deployments in, the broader Wi-Fi ecosystem will not be dominated by the new standard for several years, according to Farpoint Group principal Craig Mathias.To read this article in full, please click here

A new spin on interconnects for colocation data centers

It has been almost a year since I first wrote about Stateless, Inc., a startup devoted to bringing software-defined interconnects (SD-IX) to colocation data centers. At that time, the company was just announcing its plans to reinvent the means to connect workloads across data centers, hyperscale clouds and on-premises footprints using SD-IX. The intent was to give colo service providers a simpler way to quickly deploy network services for their tenants. Those plans have come to fruition and the company has announced the general availability (GA) of its Luxon SD-IX platform.To read this article in full, please click here

What to know before upgrading to Windows Server 2019

IT generally requires a good reason to disrupt a smooth working environment, which is why some hardware sits deployed for decades. Even though Windows Server 2016 is relatively young, there’s a decent argument to be made for upgrading a Server 2016 environment to Server 2019, the most recent release.There’s a longer span between Windows Server releases than the desktop version of the software because of slower migration habits on the server side, and this means bigger changes between releases. Windows Server 2016 was the first server OS built on the Windows 10 kernel, and some of the changes were rather rough. Windows Server 2019 is markedly faster, and it has a number of changes under the hood, from security to hybrid cloud integration. Here’s a rundown of what’s new and what are the most compelling arguments for upgrade.To read this article in full, please click here

Cisco issues critical security warnings its Data Center Network Manager

Cisco this week issued software to address multiple critical authentication exposures in its Data Center Network Manager (DCNM) software for its Nexus data center switches.DCNM is a central management dashboard for data-center fabrics based on Cisco Nexus switches and handles a number of core duties such as automation, configuration control, flow policy management and real-time health details for fabric, devices, and network topology.To read this article in full, please click here

5G is poised to transform manufacturing

5G promises not just super-fast connections and more bandwidth than Wi-Fi and 4G LTE but also better connectivity, low latency, and support for thousands of devices in one location, all of which are attractive manufacturing facilities, but it will be a while before it becomes the norm there, experts say.According to Gartner, smart factories are major opportunities for 5G. While some use cases can be achieved with existing 4G LTE, most require the low latency and high reliability offered by 5G.To read this article in full, please click here

Unix is turning 50. What does that mean?

2020 is a significant year for Unix. At the very start of the year, Unix turns 50.While some of the early development of Unix predates the official start of its "epoch," Jan 1, 1970 remains the zero-point in POSIX time and the recognized beginning of all things Unix. Jan 1, 2020 will mark 50 years since that moment.Unix time vs human time In terms of human time, 50 years is a big deal. In terms of Unix time, there's nothing particularly special about 50 years. 48.7 years would be no less significant.Unix (including Linux) systems store date/time values as the number of seconds that have elapsed since 1970-01-01 00:00:00 UTC in 32 bits. To determine how many seconds have passed since that time and, thus, what right now looks like as a Unix time value, you can issue a command like this:To read this article in full, please click here

IDG Contributor Network: Recent VPN hacks reveal transparency issues within the industry and its supply chain

Consumers are no doubt becoming increasingly aware about the safety and security of their online activity after many highly publicized studies have shown an uptick in online data theft. According to the Federal Trade Commission, there were 3 million reports of identity theft alone in 2018.Even though these threats — and the rash of data breaches — continue to grab headlines, consumers still are connecting to public wifi despite the threats and are joining other unsafe networks while traveling. More cautious or tech-savvy individuals know to turn to virtual private networks (VPNs) as a way to safely connect online, and as VPNs become more mainstream, some project the VPN market can grow to more than $35 billion by 2022. We’ve even seen some vendors to capitalize by creating flashy TV commercials that insinuate that they are consumers’ digital doorman. To read this article in full, please click here

This $387 Azure certification prep bundle is currently on sale for $29

Modern tech companies require more computing power than ever before, so many of them are turning to cloud services like Microsoft Azure to meet their needs. As such, becoming cloud-certified is a necessity if you want to pursue today’s highest-paying IT jobs. With this 4-course bundle, you can become an Azure master for just $29. To read this article in full, please click here

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