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February 12, 2021
17:15
Juniper targets WAN automation with new software suite
» ‎ Network World

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Juniper has unwrapped a suite of automation software it says will help users ensure their wide area network and cloud-connected services are running properly and cost-effectively.

The company’s Paragon Automation suite promises to help eliminate manual tasks and workflow processes to make sure WAN operations are working as expected and, if not, quickly fix problems.
Top metrics for multicloud management
The suite, which is aimed at large enterprises and service operators, includes an amalgamation of technology from Juniper’s existing NorthStar controller and Healthbot network-diagnostics packages combined with other organically developed features in combination with software it got with its recent Netrounds acquisition.

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16:00
BrandPost: Using AIOps to Solve Three of IT’s Toughest Network Operational Challenges
» ‎ Network World

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By: Trent Fierro, Senior Marketing Manager for AIOps at Aruba, a Hewlett Packard Enterprise company

Until recently, troubleshooting network issues meant helping users face-to-face or huddling in a conference room while planning next steps. Now, most IT teams are working remotely, trying to solve issues for other remote workers with very little data and interaction with others on their team. Return-to-office projects are also proving difficult as everything from improved coverage planning to new environmental health and safety programs that include contact-tracing analysis and access control involve some level of guesswork without real-world data.

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12:00
AMD builds momentum in server market
» ‎ Network World

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The server market is fairly slow to change in all things, and that includes its processor platforms. But lately it's clear AMD's comeback is getting very real.

Left for dead four years ago, AMD already has won over the gamers. Its Ryzen series of processors are the go-to choice for system builders on YouTube, whose specialty is building a high-end gaming rig in 15 minutes. But the server market is also taking note.

The latest sign came from Mercury Research, which follows the semiconductor market, in particular CPU sales. For the fourth quarter of 2020, Intel held 92.9% market share to AMD's 7.1%, but Intel was down from 95.5% one year earlier in Q4 2019 and AMD was way up from 4.5%. For the server market, that's some rapid growth.

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February 11, 2021
16:23
HPE intros SSD replacements for 10K RPM HDD server drives
» ‎ Network World

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There was once a time when hard drives that spun at 10,000 and 15,000 RPMs were considered fast storage. Then came the SSD and blew that all away. But there are some old servers out there still using them, and they could use a more modern approach.

HPE has announced an SSD replacement option for SATA-connected disk drives in its Apollo, ProLiant and Synergy servers called Very Read-Optimized (VRO). These 2.5-inch and 3.5-inch SSDs use SATA interfaces and are plug-in replacements for the drives in the servers.

HPE claimed in a Community Experts blog post this week that the drives will deliver better TCO than 10,000 RPM HDDs, although really, that's not a hard claim to make. Based on HPE's own testing, you can get 70,000 read IOPS on an HPE SATA VRO SSD compared to 400 IOPS on the fastest HPE 10K HDD. It's not even close. HPE argues that the upgrade pays for itself. It says the SSDs are up to three times more energy efficient than the 10K drives.

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February 09, 2021
22:50
How COVID-19 is shaping enterprise networking
» ‎ Network World

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The COVID-19 pandemic has influenced the networking arena in a number of ways, including the rise of fully automated remote offices, the need to support a "branch of one," and the growth of new communications software tools.

"One of the biggest trends we are seeing is business agility. That is, IT looking at the tech they have deployed and evaluating it not just in terms of speeds and feeds, but how agile it is to handle whatever's coming next," said Todd Nightingale, Cisco's Enterprise Networking & Cloud business chief. "Software APIs are a huge part of that trend, because it is amazingly easier to handle changes through APIs and software that make it possible to change things in a day rather than months."

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18:16
BrandPost: Desperately Seeking SASE: SD-WAN and Security Converge
» ‎ Network World

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Networking and security functions are becoming increasingly integrated, a trend that should have major benefits for networking and Information Technology (IT) managers. With networks serving the critical need of carrying all the traffic for business and consumer applications, you can expect this trend to accelerate with a movement known as secure access service edge (SASE).

Before we dismiss SASE as yet another overhyped buzzword, let’s take a minute to consider what it is and what it means. SASE isn’t a particular technology per se, but rather the description of increased integration of network and security services at the “service edge,” which is where devices and networks are connected. Most important, SASE instantiates services using a cloud software model. These services can include a variety of networking functions as well as security functions.

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13:00
BrandPost: Netskope Leadership Shows Where CASB and SWG Are Headed
» ‎ Network World

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Gartner’s most recent Magic Quadrant for Cloud Access Security Brokers (CASB) and Magic Quadrant for Secure Web Gateways (SWG) tell us a lot about where both of those markets are headed. Data and users increasingly reside and work in the cloud, the global pandemic has accelerated digital transformation in unprecedented ways, and the march is on toward the Secure Access Service Edge (SASE) future we’ve all been hearing about for some time now.

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12:00
Random identity generation in Linux
» ‎ Network World

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If you need to generate a list of names and addresses to test an application or a script that you're working on, Linux can make that surprisingly easy. There's a command called "rig" that will create name, address and phone number listings. As far as I can tell, out of the box, it only works with U.S. addresses and area codes. However, if this is indeed the case, you might be able to work around this problem.

To use the rig command, you can just type "rig" on the command line, and a single name and address will be generated. You will see something like this:
```
$ rig
Mavis English
1015 Tulip St
Anderson, IN  46018
(317) xxx-xxxx
```
To generate a list with many addresses, use the -c option and specify the number of addresses that you want to see.

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3:51
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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3:51
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
February 08, 2021
23:46
Report: IT employment improves in January
» ‎ Network World

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More than 18,000 new IT jobs sprang up in January as the overall outlook for tech hiring substantially improved over the past several months, according to figures from the Bureau of Labor Statistics and research firm Janco Associates.

Between that new hiring and adjustments made to the job market totals in the latest BLS numbers, the IT sector has now recouped 53,600 of the roughly 100,000 jobs it lost due to the COVID-19 crisis, according to Janco principal M. Victor Janulaitis.
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What’s more, the upward trajectory seems likely to continue, as the changing IT jobs market grows and changes, according to his projections. “IT job-market growth will expand by almost 11% in the post-COVID era,” he said. “Most of the growth in the IT job market will be with software developers, quality assurance, and testers. This will be driven by [work from home] as it is embraced by more enterprises in normal operations and internet-centric applications are developed and deployed.”

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23:46
Report: IT employment improves in January
» ‎ Network World

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More than 18,000 new IT jobs sprang up in January as the overall outlook for tech hiring substantially improved over the past several months, according to figures from the Bureau of Labor Statistics and research firm Janco Associates.

Between that new hiring and adjustments made to the job market totals in the latest BLS numbers, the IT sector has now recouped 53,600 of the roughly 100,000 jobs it lost due to the COVID-19 crisis, according to Janco principal M. Victor Janulaitis.
[Get regularly scheduled insights by signing up for Network World newsletters.]
What’s more, the upward trajectory seems likely to continue, as the changing IT jobs market grows and changes, according to his projections. “IT job-market growth will expand by almost 11% in the post-COVID era,” he said. “Most of the growth in the IT job market will be with software developers, quality assurance, and testers. This will be driven by [work from home] as it is embraced by more enterprises in normal operations and internet-centric applications are developed and deployed.”

To read this article in full, please click here
23:20
Network slicing: Wireless virtualization to build 5G services and conserve spectrum
» ‎ Network World

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Network slicing technology has large parts of the wireless networking community excited, and it’s easy to understand why: It can deliver multiple logical networks over a single physical infrastructure and give each network the unique set of characteristics required to meet specific user needs.

The idea of re-using scarce radio-frequency spectrum to create more value for providers that own the infrastructure, in addition to the ability to offer over-the-top services beyond mere connectivity, has the telecom giants interested, particularly those deploying 5G cellular services.

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23:20
Network slicing: Wireless virtualization to build 5G services and conserve spectrum
» ‎ Network World

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Network slicing technology has large parts of the wireless networking community excited, and it’s easy to understand why: It can deliver multiple logical networks over a single physical infrastructure and give each network the unique set of characteristics required to meet specific user needs.

The idea of re-using scarce radio-frequency spectrum to create more value for providers that own the infrastructure, in addition to the ability to offer over-the-top services beyond mere connectivity, has the telecom giants interested, particularly those deploying 5G cellular services.

To read this article in full, please click here
12:00
How the data-center workforce is evolving
» ‎ Network World

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The COVID-19 pandemic has profoundly affected many areas of IT, including the data center, where changes to the infrastructure--particularly adoption of cloud services--are bringing about the need for new skill sets among workers who staff them.
Tech Spotlight: The Future of Work
- Remote work 2.0 — when WFH really means 'work from anywhere' (Computerworld)
- 7 key questions facing the future of work (CIO)
- 6 top security technologies to protect remote workers (CSO)
- 7 best practices for remote development teams (InfoWorld)
- How the data center workforce is evolving (Network World)
Perhaps no technology industry benefitted more from the pandemic than cloud computing; the location independence of cloud services makes them ideal for a world where the majority of line-of-business as well as IT workers are no longer in the office.

To read this article in full, please click here
12:00
How the data-center workforce is evolving
» ‎ Network World

Tags: [edit]
The COVID-19 pandemic has profoundly affected many areas of IT, including the data center, where changes to the infrastructure--particularly adoption of cloud services--are bringing about the need for new skill sets among workers who staff them.
Tech Spotlight: The Future of Work
- Remote work 2.0 — when WFH really means 'work from anywhere' (Computerworld)
- 7 key questions facing the future of work (CIO)
- 6 top security technologies to protect remote workers (CSO)
- 7 best practices for remote development teams (InfoWorld)
- How the data center workforce is evolving (Network World)
Perhaps no technology industry benefitted more from the pandemic than cloud computing; the location independence of cloud services makes them ideal for a world where the majority of line-of-business as well as IT workers are no longer in the office.

To read this article in full, please click here
12:00
The future of work: Coming sooner than you think
» ‎ Network World

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What will your worklife be like years from now? Today's work-from-home world has given us a glimpse of the future, as these five articles from CIO, Computerworld, CSO, InfoWorld, and Network World illustrate.
February 04, 2021
17:52
Cisco AppDynamics software melds security, application management
» ‎ Network World

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Cisco AppDynamics is making it easier for customers to integrate security features with application development to help customers detect threats, identify non-standard application behavior, and block attacks.

The company is adding software, called Cisco Secure Application, to the AppDynamics platform to correlate security and application information by scanning code execution for known exploits. Vulnerability data is shared with application and security operations teams so that together they can prioritize, execute, and track remediation efforts.

Read more: How AI can create self-driving data centers

To read this article in full, please click here
17:52
Cisco AppDynamics software melds security, application management
» ‎ Network World

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Cisco AppDynamics is making it easier for customers to integrate security features with application development to help customers detect threats, identify non-standard application behavior, and block attacks.

The company is adding software, called Cisco Secure Application, to the AppDynamics platform to correlate security and application information by scanning code execution for known exploits. Vulnerability data is shared with application and security operations teams so that together they can prioritize, execute, and track remediation efforts.

Read more: How AI can create self-driving data centers

To read this article in full, please click here
February 03, 2021
23:47
Networking software can ease the complexity of multicloud management
» ‎ Network World

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Deploying and operating applications in multiple public clouds is critical to many IT leaders, and networking software can help.

Migrating applications to cloud infrastructure requires scale, performance, and, importantly, automation. But achieving them all can be challenging due to limited visibility into that infrastructure and the fact that each IaaS platform has proprietary controls for networking and security that can make multicloud operations highly manual and therefore time consuming.
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As a result, IT teams can be challenged to quickly resolve application performance issues, protect against external attacks and reduce costs. Their goal should be to combine the agility of IaaS resources with the security, manageability and control of their physical network.

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17:37
Why Andy Jassy was picked to fill Jeff Bezos’s big shoes at Amazon
» ‎ Network World

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The man who built Amazon Web Services into a $40 billion business is taking the big seat at the e-commerce company.
17:37
Why Andy Jassy was picked to fill Jeff Bezos’s big shoes at Amazon
» ‎ Network World

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The man who built Amazon Web Services into a $40 billion business is taking the big seat at the e-commerce company.
12:00
Data-center staffing shortage to spike in coming years
» ‎ Network World

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With the predicted growth in the data-center market comes a concurrent need for more staff. According to a report from the Uptime Institute, the number of staff needed to run the world's data centers will grow from around two million in 2019 to nearly 2.3 million by 2025.

This estimate covers more than 230 specialist job roles for different types and sizes of data centers, with varying criticality requirements, from design through operation, and across all global regions.

Already the industry is bedeviled by staffing shortages. Fifty percent of those surveyed by Uptime Institute said they were currently experiencing difficulties finding candidates for open positions, up from 38% in 2018.

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February 02, 2021
23:47
AWS chief Andy Jassy gets top job at Amazon as CEO Bezos steps down
» ‎ Network World

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The surprise announcement that Jeff Bezos will leave later this year and hand over the reins to AWS leader Andy Jassy marks a remarkable rise for Jassy. He began as a marketing manager in 1997 and started AWS in 2003.
23:47
AWS chief Andy Jassy gets top job at Amazon as CEO Bezos steps down
» ‎ Network World

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The surprise announcement that Jeff Bezos will leave later this year and hand over the reins to AWS leader Andy Jassy marks a remarkable rise for Jassy. He began as a marketing manager in 1997 and started AWS in 2003.
21:29
Arista embraces segmentation as part of its zero-trust security
» ‎ Network World

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Arista has expanded its security software to let customers control authorized network access and communication between groups from the data center to the cloud.

The new software, Macro-Segmentation Service (MSS)-Group, expands the company’s MSS security-software family, which currently includes MSS Firewall for setting security policies across customer edge, data-center and campus networks. Additionally, the company’s MSS Host focuses on data-center security policies.
See how AI can boost data-center availability and efficiency
MSS software works with Arista Extensible Operating System (EOS) and its overarching CloudVision management software to provide network-wide visibility, orchestration, provisioning and telemetry across the data center and campus. CloudVision’s network information can be utilized by Arista networking partners including VMware, Microsoft and IBM’s Red Hat.

To read this article in full, please click here
21:29
Arista embraces segmentation as part of its zero-trust security
» ‎ Network World

Tags: [edit]

Arista has expanded its security software to let customers control authorized network access and communication between groups from the data center to the cloud.

The new software, Macro-Segmentation Service (MSS)-Group, expands the company’s MSS security-software family, which currently includes MSS Firewall for setting security policies across customer edge, data-center and campus networks. Additionally, the company’s MSS Host focuses on data-center security policies.
See how AI can boost data-center availability and efficiency
MSS software works with Arista Extensible Operating System (EOS) and its overarching CloudVision management software to provide network-wide visibility, orchestration, provisioning and telemetry across the data center and campus. CloudVision’s network information can be utilized by Arista networking partners including VMware, Microsoft and IBM’s Red Hat.

To read this article in full, please click here
12:00
Dell partners to provide 5G networking, edge solution
» ‎ Network World

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Dell Technologies, its VMware subsidiary, and SK Telecom have partnered to provide OneBox MEC, a single-box approach that provides enterprises with an integrated, private-5G and edge-computing platform.
5G resources
Consulting giant Deloitte believes private 5G networks will become the preferred choice of networks for many of the world’s largest businesses, especially for industrial environments such as manufacturing plants, logistics centers, and ports.

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11:59
Factorials and unscrambling words with bash on Linux
» ‎ Network World

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In this post, we examine a bash script that takes a string of letters, rearranges them in every possible way and checks each permutation to identify those that are English words. In the process, we'll take a close look at the script and calculate how hard it might have to work.

Note that, in the algorithm used, each letter arrangement must use all of the letters in the string provided. Words formed by substrings are not considered.
How to loop forever in bash on Linux
First, the script expects the scrambled string to be provided as an argument and prompts for it if none is provided. It then checks out each arrangement of letters to find those that exist in the system's words file – in this case, that's /usr/share/dict/words. Here are the first lines in the script:

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11:59
Factorials and unscrambling words with bash on Linux
» ‎ Network World

Tags: [edit]

In this post, we examine a bash script that takes a string of letters, rearranges them in every possible way and checks each permutation to identify those that are English words. In the process, we'll take a close look at the script and calculate how hard it might have to work.

Note that, in the algorithm used, each letter arrangement must use all of the letters in the string provided. Words formed by substrings are not considered.
How to loop forever in bash on Linux
First, the script expects the scrambled string to be provided as an argument and prompts for it if none is provided. It then checks out each arrangement of letters to find those that exist in the system's words file – in this case, that's /usr/share/dict/words. Here are the first lines in the script:

To read this article in full, please click here
February 01, 2021
12:00
Study finds Google has the fastest overall cloud platform
» ‎ Network World

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Google Cloud Platform (GCP) is the best hyperscale performer across all areas of throughput while Microsoft Azure has the best storage systems and Amazon Web Services (AWS) has the lowest network latency.

Those are the findings of a series of benchmarks performed by the atrociously named Cockroach Labs, maker of a scalable, resilient database called CockroachDB that runs on all three services. The study, part of the company’s third annual Cloud Report, evaluated the performance of AWS, Microsoft Azure, and Google Cloud in online transaction processing (OLTP) applications.

In total, 54 machines were assessed and almost 1,000 benchmark runs were conducted to measure CPU, network, storage I/O, and TPC-C performance, among others.

To read this article in full, please click here
12:00
How-to improve Wi-Fi roaming
» ‎ Network World

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User satisfaction with Wi-Fi relies in part on whether the network supports smooth handoffs between access points as users and their devices roam about, and if the APs don’t do their job well, users will complain.
Wi-Fi resources
The initial tendency may be to install more APs in hopes of finding an easy fix, but doing so without careful analysis can make the situation even worse. Proper roaming requires more than just good signal strength throughout coverage areas; it takes a careful balance between the coverage of each AP on both 2.4 and 5GHz bands to make roaming work right.

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12:00
How-to improve Wi-Fi roaming
» ‎ Network World

Tags: [edit]
User satisfaction with Wi-Fi relies in part on whether the network supports smooth handoffs between access points as users and their devices roam about, and if the APs don’t do their job well, users will complain.
Wi-Fi resources
The initial tendency may be to install more APs in hopes of finding an easy fix, but doing so without careful analysis can make the situation even worse. Proper roaming requires more than just good signal strength throughout coverage areas; it takes a careful balance between the coverage of each AP on both 2.4 and 5GHz bands to make roaming work right.

To read this article in full, please click here
January 29, 2021
19:16
IPv6: How to configure static and DHCP IP addressing and deal with DNS
» ‎ Network World

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As IP technology has matured, the range of devices that the internet protocol supports goes well beyond computers to include cell phones, entertainment systems, and Internet of Things (IoT) devices, which created the need for more IP addresses and the development of IPv6 to provide them.

With more and more device types requiring network connectivity, the demand for addresses in an IPv4-based network is at a premium. It can provide somewhere south of 4,294,967,296 unique addresses. IPv6, on the other hand, can yield roughly 3.4×10³⁸, which should be ample for a very long time.

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12:00
Nvidia launches program for certified AI servers
» ‎ Network World

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Nvidia is offering a certification program to steer customers and partners to buy GPU servers specifically tailored for artificial intelligence (AI) workloads from top-tier OEMs and ODMs.

The program, called Nvidia-Certified Systems, is similar to those offered by Intel and AMD. It tells customers that these servers with these configurations are best optimized for running AI workloads at peak performance and in large-scale deployments.

READ MORE: How AI can create self-driving data centers

To read this article in full, please click here
12:00
Nvidia launches program for certified AI servers
» ‎ Network World

Tags: [edit]

Nvidia is offering a certification program to steer customers and partners to buy GPU servers specifically tailored for artificial intelligence (AI) workloads from top-tier OEMs and ODMs.

The program, called Nvidia-Certified Systems, is similar to those offered by Intel and AMD. It tells customers that these servers with these configurations are best optimized for running AI workloads at peak performance and in large-scale deployments.

READ MORE: How AI can create self-driving data centers

To read this article in full, please click here
11:59
Will carriers use 5G to provide edge services?
» ‎ Network World

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US mobile carriers see an opportunity to broaden their role in the enterprise marketplace as the rush to deploy 5G continues, but it’s unclear whether their strategy will be sufficient to achieve that goal, according to industry analysts.
5G resources
Verizon, AT&T and T-Mobile are cornerstones of America’s Internet infrastructure, but their role has been largely restricted to data transport for most of their history. The provide data pipelines, but efforts to monetize their networks beyond the simple provision of transport for other companies’ data have met with mixed success, at best.

To read this article in full, please click here
11:59
Will carriers use 5G to provide edge services?
» ‎ Network World

Tags: [edit]
US mobile carriers see an opportunity to broaden their role in the enterprise marketplace as the rush to deploy 5G continues, but it’s unclear whether their strategy will be sufficient to achieve that goal, according to industry analysts.
5G resources
Verizon, AT&T and T-Mobile are cornerstones of America’s Internet infrastructure, but their role has been largely restricted to data transport for most of their history. The provide data pipelines, but efforts to monetize their networks beyond the simple provision of transport for other companies’ data have met with mixed success, at best.

To read this article in full, please click here
January 28, 2021
23:24
Ethernet innovation pits power against speed
» ‎ Network World

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While the move to 400G Ethernet has so far been a largely hyperscaler and telco-network event, the ambition for those users, as well as data-center customers is ultimately to move to at least 800Gbps and possibly 1.6Tbps.

And while 800Gbps seems to be a solid goal for Ethernet networking visionaries, the challenges—such as the optics, power, and architecture required to make the next speed leap—seem formidable.

The need for increased speed in data centers and cloud services is driven by myriad things including the continued growth of hyperscale networks from players like Google, Amazon and Facebook, but also the more distributed cloud, artificial intelligence, video, and mobile-application workloads that current and future networks will support.

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14:13
ExaGrid updates and streamlines its backup appliances
» ‎ Network World

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I'm a sucker for the underdog, so shame on me for focusing on the big guys for so long. It's time to change that with some news from ExaGrid, a competitor of Dell EMC and HP Enterprise in the data backup appliance market.

Earlier this month, ExaGrid announced it has increased the capacity of its Tiered Backup Storage appliances while also reducing its offerings from nine systems to seven. Appliances of any size can be mixed and matched in a cluster of up to 32 appliances.

ExaGrid also changed the naming convention of the appliances to better reflect their capacity. For example, the discontinued bottom-of-the-line EX3000 had 3TB of full backup capacity, while the new bottom-end appliance is the EX6, with 6TB of full backup capacity storage.

To read this article in full, please click here
14:13
ExaGrid updates and streamlines its backup appliances
» ‎ Network World

Tags: [edit]

I'm a sucker for the underdog, so shame on me for focusing on the big guys for so long. It's time to change that with some news from ExaGrid, a competitor of Dell EMC and HP Enterprise in the data backup appliance market.

Earlier this month, ExaGrid announced it has increased the capacity of its Tiered Backup Storage appliances while also reducing its offerings from nine systems to seven. Appliances of any size can be mixed and matched in a cluster of up to 32 appliances.

ExaGrid also changed the naming convention of the appliances to better reflect their capacity. For example, the discontinued bottom-of-the-line EX3000 had 3TB of full backup capacity, while the new bottom-end appliance is the EX6, with 6TB of full backup capacity storage.

To read this article in full, please click here
12:01
BGP: What is border gateway protocol, and how does it work?
» ‎ Network World

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Finding the best way to get from Point A to Point B is easy if you’re drawing a straight line on a piece of paper, but when Point A is your computer and Point B is a website halfway around the world, things get a bit trickier.

In the latter case, Border Gateway Protocol (BGP), the routing protocol used by the global internet, is used to find the best path by weighing the latest network conditions based on reachability and routing information. BGP manages how data packets get delivered between the large networks that make up the internet and makes it possible for the internet as we know it to operate efficiently.
What is Border Gateway Protocol?
BGP has been called the glue of the Internet and the postal service of the internet. One comparison likens BGP to GPS applications on mobile phones. If you were driving from Boston to Los Angeles, the GPS app decides the best route possible using existing knowledge of road conditions, traffic jams, and whether you want to travel on a toll road. Sometimes, the shortest path is not always the best path. BGP is like having a continuously updated map of the internet from which routers choose the best path at the time.

To read this article in full, please click here
12:01
BGP: What is border gateway protocol, and how does it work?
» ‎ Network World

Tags: [edit]

Finding the best way to get from Point A to Point B is easy if you’re drawing a straight line on a piece of paper, but when Point A is your computer and Point B is a website halfway around the world, things get a bit trickier.

In the latter case, Border Gateway Protocol (BGP), the routing protocol used by the global internet, is used to find the best path by weighing the latest network conditions based on reachability and routing information. BGP manages how data packets get delivered between the large networks that make up the internet and makes it possible for the internet as we know it to operate efficiently.
What is Border Gateway Protocol?
BGP has been called the glue of the Internet and the postal service of the internet. One comparison likens BGP to GPS applications on mobile phones. If you were driving from Boston to Los Angeles, the GPS app decides the best route possible using existing knowledge of road conditions, traffic jams, and whether you want to travel on a toll road. Sometimes, the shortest path is not always the best path. BGP is like having a continuously updated map of the internet from which routers choose the best path at the time.

To read this article in full, please click here
January 27, 2021
21:17
Serious 10-year-old flaw in Linux sudo command; a new version patches it
» ‎ Network World

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Linux users should immediately patch a serious vulnerability to the sudo command that, if exploited, can allow unprivileged users gain root privileges on the host machine.

Called Baron Samedit, the flaw has been “hiding in plain sight” for about 10 years, and was discovered earlier this month by researchers at Qualys and reported to sudo developers, who came up with patches Jan. 19, according to a Qualys blog. (The blog includes a video of the flaw being exploited.)

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January 26, 2021
20:32
Cisco bolsters edge networking family with expanded SD-WAN, security options
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Cisco this week expanded its Catalyst 8000 Edge Platform family to offer enterprise edge customers more secure SD-WAN and cloud resource access options.

The Cisco Catalyst 8000 edge router collection currently includes three models: the high-end 8500 for data-center or colocation customers, the 8300 for branch users, and the software-based 8000 for virtual environments. Feature support includes advanced routing, SD-WAN, security and secure-access service edge (SASE), depending on customer requirements, and all models run Cisco's IOS XE operating system software.

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17:05
BrandPost: The Right SD-WAN Platform Helps on the Journey Toward a Better Integration of Managed Network and Security Services
» ‎ Network World

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Today, one of the hottest topics in IT is the emerging Secure Access Service Edge (SASE) model, an architectural framework conceived by Gartner that outlines the future vision for transforming legacy WAN and security technologies to a cloud-managed edge, combining WAN edge capabilities with cloud-delivered network security functions (such as SWG, CASB, FWaaS and ZTNA) to support the dynamic secure access needs of digital enterprises.

The question of the day: Is now the time for managed service providers (MSPs) to define and formalize a SASE offering to deliver an expanded set of managed and professional services that support an integrated enterprise network and security transformation?

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12:00
Using vim to quickly encrypt and decrypt files
» ‎ Network World

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Any time you have a text file on a Linux system that you want to keep private regardless of the privileges that other users with accounts on the system may have, you can resort to encryption. One easy way to do this is to use a feature that is built into the vim editor. You will have to provide a password that will you then need to remember or store in a password safe, but the process is straightforward. The file name will not be changed in any way, and the content of the file can be recovered in much the same way that it was encrypted.

To begin, let's say that we have a file that begins like this:
```
$ head -3 mysecret
I feel the need to put my deepest darkest secret into a text file on my Linux
system. While this likely isn't common practice, I'm not sure that I can trust
anyone with it. But a penguin? That's a different story! So here goes ...
```
Now, not wanting to risk your deepest darkest secret to fellow users, you use vim with its -x (encryption) option.

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January 25, 2021
16:31
Gartner: 2021 IT spending rally could hit $3.9T
» ‎ Network World

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Gartner projects worldwide IT spending will total $3.9 trillion in 2021, an increase of 6.2% over 2020 when spending declined a little over 3%.

All IT spending segments—from data-center systems to communications services—are forecast to return to growth in 2021, according to Gartner . Enterprise software is expected to have the strongest rebound, 8.8%, as remote work environments are expanded and improved. The devices segment will see the second highest growth in, 8%, and is projected to reach $705.4 billion.

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12:00
Hot network certifications: Multi-skill certs to dominate 2021
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In March, IT professional association CompTIA nervously pondered what affect COVID-19 and work-from-home mandates would have on its members and its core mission of delivering training and vendor-neutral IT certifications. "When you have this kind of upheaval, what does that mean in terms of education?" says James Stanger, chief technology evangelist at CompTIA. Surely it would take a back seat to more pressing business issues. Turns out, certifications have "massively continued" their upward trend, he says.

Learn more about tech trends and certifications:

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January 22, 2021
18:21
IT workforce suffering under COVID-19, waiting on herd immunity for rebound
» ‎ Network World

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For the first year since the dot-com bubble popped, IT salaries were largely flat in 2020, and tens of thousands of jobs were lost in 2020, according to a report from independent management consultants Janco Associates.

Hardest-hit were middle management jobs at both large enterprises and smaller companies, where salaries actually dropped by about 0.08%, while executive and staff-level jobs remained steady or grew by a similarly small amount.

“What’s been hard hit, mostly, are IT organizations and SMBs,” said Victor Janulaitis, the CEO of Janco, which published the report. “That’s where the majority of the IT jobs are in the marketplace today.”

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17:02
Examining network connections on Linux systems
» ‎ Network World

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There are a lot of commands available on Linux for looking at network settings and connections. In today's post, we're going to run through some very handy commands and see how they work.

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(Insider Story)
January 21, 2021
19:46
How a Linux migration led to the creation of Amazon Web Services
» ‎ Network World

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Dan Rose, chairman of Coatue Ventures and Coatue Growth, posted a thread on Twitter the other day, 280 characters or less at a time, in which he chronicled how it came about that AWS infrastructure is built on Linux.

Rose was at Amazon from 1999 to 2006, where he managed retail divisions and helped incubate the Kindle reader before moving to Facebook. So he was at Amazon in 2000 when the internet bubble popped,and one high-flying dot-com after another was shriveling up and dying, having burned through ridiculous amounts of capital on luxurious offices while often having nothing by way of a product to show for it.

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15:00
BrandPost: How to Create Hyper-Aware Stores for Enhanced Experiences and Better Business Outcomes
» ‎ Network World

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By Gerri Hinkel, Director of Solutions and Vertical Marketing at Aruba, a Hewlett Packard Enterprise company

Competitive pressures for retailers to gain and retain shoppers are at an all-time high due to an uncertain economy, demanding customers, and the explosive growth of e-commerce due to the global pandemic. These challenges are a constant and a forcing factor for stores that must innovate even amidst uncertainty.

In this environment, savvy retailers like Tractor Supply Company and H-E-B are creating hyper-aware stores – leveraging each respective network to do more than connect devices and secure payment data. Edge IoT devices such as sensors, cameras, and voice communicators, combined with contextual details such as location and identity, can provide real-time insights to understand space utilization, improve customer experiences, and drive better store operations.

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12:00
VMware takes an executive talent hit but can handle it
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The news that Pat Gelsinger is departing as CEO of VMware to take over at Intel generated a positive response for Intel and an equally negative response for VMware. Intel's stock jumped 7% on the day of the news, while VMware's stock fell 7%, and investment bank Piper Sandler slashed its VMware price target from $178 down to $157.

Most of the discussion has been around Gelsinger and his return to Intel. VMware, meanwhile, has been overlooked in the process. So what's the outlook for VMware, which has lost more talent than just its CEO in recent months?

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12:00
How-to measure enterprise Wi-Fi speeds
» ‎ Network World

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There are many ways to evaluate the speed of your wireless LAN (WLAN), whether you’re trying to troubleshoot issues, ensure bandwidth-intensive clients will work well, fine-tune the performance, or just curious about your Wi-Fi speeds.
Wi-Fi resources
The simple Internet-speed apps or websites can be useful, but sometimes you need to measure the actual Wi-Fi throughput. For this you usually need a testing platform with a server and clients.

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12:00
Wi-Fi 6E: When it’s coming and what it’s good for
» ‎ Network World

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This spring the FCC opened up a new swath of unlicensed wireless spectrum in the 6GHz band that’s intended for use with Wi-Fi and can provide lower latency and faster data rates. The new spectrum also has a shorter range and supports more channels than bands that were already dedicated to Wi-Fi, making it suitable for deployment in high-density areas like stadiums.

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(Insider Story)
12:00
Test and review of 4 Wi-Fi 6 routers: Who's the fastest?
» ‎ Network World

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One of the most anticipated features of Wi-Fi 6 wireless routers is improved throughput over their Wi-Fi 5 predecessors, and we wanted to check whether they deliver.
Wi-Fi resources
Four vendors – Extreme, Cisco, EnGenius and Meraki (owned by Cisco) – provided access points (AP) for our test. Since the routers support both Wi-Fi 5 (802.11ac) and Wi-Fi 6 (802.11ax), we tested them against two Wi-Fi 5 and two Wi-Fi 6 clients and recorded the average throughput and the peak throughput during one-minute tests.

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12:00
5 questions to answer before deploying Wi-Fi 6
» ‎ Network World

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The Wi-FI 6 standard (802.11ax) is bringing many exciting improvements to Wi-Fi that make it an enticing option. These include speed, in the form of real-world multi-gigabit wireless connections, but also support for high-density networks like those in stadiums. However, it will take some careful thought and planning to know when to take the leap to Wi-Fi 6.

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(Insider Story)
12:00
How to determine if Wi-Fi 6 is right for you
» ‎ Network World

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There's a lot of hype around the next Wi-Fi standard, 802.11ax, more commonly known as Wi-Fi 6. Often new technologies are built up by vendors as the "next big thing" and then flop because they don’t live up to expectations. In the case of Wi-Fi 6, however, the fervor is warranted because it's the first Wi-Fi standard designed with the premise that Wi-Fi is the primary connection for devices rather than a network of convenience.
Wi-Fi resources
Wi-Fi 6 is a different kind of Wi-Fi
Wi-Fi 6 is loaded with features, such as Orthogonal Frequency Division Multiple Access (OFDMA), 1024-QAM (quadrature amplitude modulation) encoding, and target wake time (TWT), that make Wi-Fi faster and less congested. Many of these enhancements came from the world of LTE and 4G, which addressed these challenges long ago. These new features will lead to a better mobile experience and longer client battery life, and they will open the door to a wide range of applications that could not have been done on Wi-Fi in the past. For example, an architect could now use virtual reality (VR) over Wi-Fi to showcase a house.

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4:21
Cisco tags critical security holes in SD-WAN software
» ‎ Network World

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Cisco has noted and fixed two critical and a number of high-degree vulnerabilities in its SD-WAN software portfolio.

Most of the vulnerabilities could let an authenticated attacker execute command injection attacks against an affected device, which could let the attacker utilize root privileges on the device.

The first critical problem–with a Common Vulnerability Scoring System rating of 9.9 out of 10–is vulnerability in the web-based management interface of Cisco SD-WAN vManage Software.

“This vulnerability is due to improper input validation of user-supplied input to the device template configuration,” Cisco stated. “An attacker could exploit this vulnerability by submitting crafted input to the device template configuration. A successful exploit could allow the attacker to gain root-level access to the affected system.”

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January 20, 2021
15:48
Study: Cloud transformation necessary for digital transformation
» ‎ Network World

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Cloud migration is a necessary step for digital transformation, which is proceeding faster than planned at many enterprises because of the COVID-19 pandemic, according to research from Cloud Industry Forum (CIF), a cloud computing organization based in the United Kingdom.

The cloud is an important steppingstone for getting off legacy on-prem technologies and outfitting today's more flexible, remote workforce. Supporting a remote workforce requires a digital transformation, and to do that, companies need the cloud – public, private, or hybrid. CIF found that in many sectors, remaining productive during lockdown depended on their cloud-readiness.

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15:48
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.

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15:47
Survey: Native SD-WAN monitoring tools are not enough
» ‎ Network World

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(Editor’s note: A recent Enterprise Management Associates survey of 303 WAN managers found that native monitoring is an important factor in choosing SD-WAN products, but many respondents say additional third-party monitoring tools are also needed. This article by EMA Vice President of Research Networking Shamus McGillicuddy explores some of the survey results included in the report “Enterprise WAN Transformation: SD-WAN, SASE, and the Pandemic” that is based on the survey.)

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15:46
Lessons that insurrection selfies hold for legitimate enterprises
» ‎ Network World

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The pro-Trump rioters who invaded the Capitol on January 6 came with smartphones to record and celebrate what they thought was a righteous effort to prevent president-elect Joe Biden from taking office two weeks later.

Now those electronic devices, along with the GPS data they generated, are being used to track the location of rioters within the building as federal law enforcement officials continue to make arrests and build criminal cases.

Among the acts being investigated: breaking through police barriers, smashing windows, and assaulting police officers and media members. Five people died including a Capitol Hill police officer who was bludgeoned with a fire extinguisher.

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January 19, 2021
12:00
How to manage your power bill while adopting AI
» ‎ Network World

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Artificial intelligence (AI) and machine learning (ML) can be invaluable tools to spur innovation, but they have different management requirements than typical enterprise IT applications that run at moderate CPU and memory utilization rates. Because AI and ML tend to run intense calculations at very high utilization rates, power and cooling costs can consume a higher proportion of the budget than an IT group might expect.

It's not a new problem, but the impact is intensifying.

As more CPU-heavy applications such as data warehousing and business intelligence became prevalent, IT was often oblivious to the electric bill it was racking up – particularly since the bill usually goes to the ops department, not IT.

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January 18, 2021
12:00
Career roadmap: cloud architect
» ‎ Network World

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A vital part of digital transformation efforts, demand for cloud architects is expected to grow, with forecasters suggesting it could be one of the 10 most in-demand technology jobs for 2020. Here’s a look at what it takes to become a cloud architect.
12:00
Network training 2021: Businesses grow their own IT expertise to meet new challenges
» ‎ Network World

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As the traditional approach to networking is replaced by hybrid cloud, SD-WAN and edge networks, in-house skill sets haven't kept up.

Hiring new staff is one option to narrow the deficit, but there's a skills shortage in the industry right now, and hiring is expensive. According to McKinsey, it often costs around $30,000 to bring on a new employee, not counting the onboarding training. As a result, 82% of global executives surveyed by McKinsey say that reskilling and upskilling will be at least half the solution to their skills gaps.

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January 15, 2021

Permalink for 'Looking into Linux user logins with lslogins'

12:00

Looking into Linux user logins with lslogins

» ‎ Network World

One convenient way to list details about user logins on a Linux system is to use the lslogins command. You'll get a very useful and nicely formatted display that includes quite a few important details.

On my system and likely most others, user accounts will start with UID 1000. To list just these accounts rather than include all of the service accounts like daemon, mail and syslog, add the -u option as shown in the example below.

$ sudo lslogins -u
  UID USER                PROC PWD-LOCK PWD-DENY LAST-LOGIN GECOS
    0 root                 151        0        0            root
 1000 shs                   68        0        0      12:35 Sandra H-S
 1001 nemo                   0        0        0 2021-Jan05 Nemo Demo,,,
 1002 dbell                  0        0        1            Dory Bell
 1003 shark                  2        0        0       7:15 Sharon Hark
 1004 tadpole                0        0        0 2020-Dec05 Ted Pole
 1005 eel                    0        0        0 2021-Jan11 Ellen McDay
 1006 bugfarm                0        0        0 2021-Jan01 Bug Farm
 1008 dorothy                0        0        1            Dorothy Reuben
 1012 jadep                  0        0        1 2021-Jan04 Jade Jones
 1013 myself                 0        0        0 2021-Jan12 My Self
 1014 marym                  0        0        0 2020-Mar20 Mary McShea
 1017 gijoe                  0        0        0            GI Joe
65534 nobody                 0        0        1            nobody

What the lslogins command does is grab relevant information from system files such as /etc/passwd, /etc/shadow and /var/log/wtmp and lay it out in a format like that shown below. If you run this command without using sudo, you will not be able to retrieve all of the information shown. Non-privileged accounts won't have access to all of the files that are needed.

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January 14, 2021
17:37
Cisco coughs up another $1.9B to buy Acacia
» ‎ Network World

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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.

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2:22
Cisco adds to its Nexus data-center-management software
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Cisco has added support for traditional network environments to the company’s recently available data center-management console.

Introduced in October, Cisco’s Nexus Dashboard melds a number of Cisco’s on-premises, cloud and hybrid fabric-management tools into a single interface to administer application lifecycles from provisioning to maintenance and optimization.
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The idea is that the dashboard provides a central platform for data center-operation applications to simplify the operation and management of the applications while reducing the infrastructure overhead to run them, according to Cisco.

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2:20
After Intel CEO Swan’s cleanup job, Gelsinger will move the company forward
» ‎ Network World

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Pat Gelsinger’s return to Intel after a 12-year absence has been greeted positively, with the stock jumping 8% on the news Wednesday, analysts lauding it, and apparently even Intel staff approving, indicating he remained popular there despite leaving the firm in 2009.

Replacing outgoing CEO Bob Swan with VMware CEO Gelsinger, isn’t a sign of failure on the part of Swan, who took over in early 2018. Intel is expected to meet or exceed Q1 revenue and income projections when it reports earnings Jan. 21. The fact that Swan is being given time to clean out his desk—he is staying on until mid-February—says that this is a civil parting, unlike that of his predecessor, Brian Krzanich, whom they couldn’t get out the door fast enough.

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January 13, 2021
17:08
VMware loses CEO Gelsinger to Intel
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Intel said it will bring on current VMware leader Pat Gelsinger as its new chief executive officer, effective Feb. 15, 2021. The 40-year technology industry vet replaces Intel’s Bob Swan, who will remain CEO until that date.

For VMware, the company said it was initiating a global executive search process to name a permanent chief and that Zane Rowe, current VMware CFO will become interim CEO.
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“Pat led the company in expanding our core virtualization footprint and broadening our capabilities to cloud, networking, 5G/edge and security, while almost tripling revenue to nearly $12 billion,” Rowe said in a statement. “VMware remains focused on helping customers optimize their digital infrastructure—from app modernization and multi-cloud to networking, security and digital workspaces. We look forward to continued growth and innovation across our technology offerings.”

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16:33
BrandPost: Adapting your Security Strategy to a Highly Distributed Workforce Long-term
» ‎ Network World

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In times like these, it's tempting for IT teams and company leadership to get caught up in the latest developments or next month's trends, especially when it comes to how and where work is done. But organizations that develop a long-term strategy for all scenarios—extended work-from-home, return to the office or hybrid models of any flavor—will come out stronger than ever after the pandemic.

Any provider worth your investment should be able to ensure adaptability no matter your circumstances or how much or how often your plans may change. They should be able to support you whether a full return to office culture is imminent or majority-work-from-home is anticipated – or any combination in between. Perhaps most importantly, they should be able to do it all securely.

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January 12, 2021
16:09
BrandPost: Top 8 SD-WAN Predictions for 2021
» ‎ Network World

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As we embark upon 2021, we have an opportunity to put the challenges of the past year behind us and embrace a new normal that includes providing enterprises and their employees with the ability to connect to business applications from anywhere in a safe and secure manner.

With Silver Peak now part of Aruba, our ability to help our enterprises to successfully transform their WAN and security architectures and advance digital transformation has never been greater. With so many exciting advancements in WAN edge technologies, including the acceleration of IoT adoption, advancements in automation and AI along with new transport technologies emerging, we’re continuing to accelerate the transformation of the network edge.

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December 21, 2020
15:16
BrandPost: Digital Innovation Demands Security-driven Networking
» ‎ Network World

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Today’s networks are distributed across so many devices and environments, many of them temporary and all of them in a constant state of flux, that the notion of a perimeter has been almost completely abandoned. This transition has largely been the result of an application-based business model. Users—both employees and consumers—require immediate and reliable access to critical applications and streaming services at any time, from any location, on any device.

To achieve this, most organizations have transformed their networks to a collection of edges. In addition to the LAN edge, there is the new WAN edge, the multi-cloud edge, the distributed datacenter edge, the mobile edge, and most recently due to the rapid shift to work-from-home, a huge surge in the home office edge. And multi-edge computing (MEC)—a distributed, open IT architecture that features decentralized processing power and a virtualized network platform—is right around the corner. Powered by 5G-enabled devices and infrastructure, MEC leverages mobile computing and Internet of Things (IoT) technologies to process data locally rather than being transmitted to a datacenter.

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