New Docker Desktop Preview for Apple M1 Released

This is just a quick update to let you know that we’ve released another preview of Docker Desktop for Apple M1 chips, which you can download from our Docker Apple M1 Tech Preview page. The most exciting change in this version is that Kubernetes now works.

First, a big thank you to everyone who tried out the previous preview and gave us feedback. We’re really excited to see how much enthusiasm there is for this, and also really grateful to you for reporting what doesn’t yet work and what your highest priorities are for quick fixes. In this post, we want to update you on what we’ve done and what we’re still working on.

Some of the biggest things we’ve been doing since the New Year are not immediately visible but are an essential part of eventually turning this into a supported product. The previous preview was built on a developer’s laptop from a private branch. Now all of the code is fully integrated into our main development branch. We’ve extended our CI suite to add several M1 machines, and we’ve extended our CI code to build and test Docker Desktop itself and all our dependencies for both architectures in Continue reading

Data-center training, recruitment need to change to meet staffing demands

As demand for data-center capacity has surged, owners and operators are struggling to keep pace on the employee side. Improved outreach, more creative approaches to recruitment, and better training and education opportunities are needed to ensure the data-centers can meet the "astronomical anticipated demand" for skilled people, said Rhonda Ascierto, vice president of research at Uptime Institute.The research firm's newly released Global Data Center Staffing Forecast reveals concern about the volume of open jobs and hard-to-find skills. In 2020, 50% of data-center owners and operators reported having difficulty finding qualified candidates for open jobs, compared to 38% in 2018. Meanwhile, demand for data-center staff is forecast to grow globally from about 2 million full-time employees in 2019 to nearly 2.3 million by 2025, Uptime Institute reports.To read this article in full, please click here

Data-center training, recruitment need to change to meet staffing demands

As demand for data-center capacity has surged, owners and operators are struggling to keep pace on the employee side. Improved outreach, more creative approaches to recruitment, and better training and education opportunities are needed to ensure the data-centers can meet the "astronomical anticipated demand" for skilled people, said Rhonda Ascierto, vice president of research at Uptime Institute.The research firm's newly released Global Data Center Staffing Forecast reveals concern about the volume of open jobs and hard-to-find skills. In 2020, 50% of data-center owners and operators reported having difficulty finding qualified candidates for open jobs, compared to 38% in 2018. Meanwhile, demand for data-center staff is forecast to grow globally from about 2 million full-time employees in 2019 to nearly 2.3 million by 2025, Uptime Institute reports.To read this article in full, please click here

Data-center training, recruitment need to change to meet staffing demand

As demand for data-center capacity has surged, owners and operators are struggling to keep pace on the employee side. Improved outreach, more creative approaches to recruitment, and better training and education opportunities are needed to ensure the data-centers can meet the "astronomical anticipated demand" for skilled people, said Rhonda Ascierto, vice president of research at Uptime Institute.The research firm's newly released Global Data Center Staffing Forecast reveals concern about the volume of open jobs and hard-to-find skills. In 2020, 50% of data-center owners and operators reported having difficulty finding qualified candidates for open jobs, compared to 38% in 2018. Meanwhile, demand for data-center staff is forecast to grow globally from about 2 million full-time employees in 2019 to nearly 2.3 million by 2025, Uptime Institute reports.To read this article in full, please click here

Data-center training, recruitment need to change to meet staffing demand

As demand for data-center capacity has surged, owners and operators are struggling to keep pace on the employee side. Improved outreach, more creative approaches to recruitment, and better training and education opportunities are needed to ensure the data-centers can meet the "astronomical anticipated demand" for skilled people, said Rhonda Ascierto, vice president of research at Uptime Institute.The research firm's newly released Global Data Center Staffing Forecast reveals concern about the volume of open jobs and hard-to-find skills. In 2020, 50% of data-center owners and operators reported having difficulty finding qualified candidates for open jobs, compared to 38% in 2018. Meanwhile, demand for data-center staff is forecast to grow globally from about 2 million full-time employees in 2019 to nearly 2.3 million by 2025, Uptime Institute reports.To read this article in full, please click here

Link-State Routing Protocols Are Eventually Consistent

One of my readers sent me this interesting question:

Assuming we are running a very large OSPF area with a few thousand nodes. If we follow the chain reaction of OSPF LSA flooding while the network is converging at the same time, how would all routers come to know that they all now have same view of area link states and there are no further updates or convergence?

I have bad news: the design requirements for link state protocols effectively prevent that idea from ever working well.

Read more …

Link-State Routing Protocols Are Eventually Consistent

One of my readers sent me this interesting question:

Assuming we are running a very large OSPF area with a few thousand nodes. If we follow the chain reaction of OSPF LSA flooding while the network is converging at the same time, how would all routers come to know that they all now have same view of area link states and there are no further updates or convergence?

I have bad news: the design requirements for link state protocols effectively prevent that idea from ever working well.

Read more …

Upgrading Firmware on Northbound Networks Zodiac FX

Recent versions of firmware (after v0.80) running on the Northbound Networks Zodiac FX can be updated directly from the web interface, or using XMODEM via the serial console. But what if, say, you had sat one your Zodiac FX for a while and are running firmware earlier than v0.81 and have a sudden, unexpected desire to upgrade the firmware? Say you are, for example, me?

The process turned out to be less straightforward than I had hoped, so I am documenting the successful steps I followed in case it’s of use to somebody else.

My (Brief) Zodiac FX Background

Back in 2015 I backed a Kickstarter project for this awesome-sounding four-port FastEthernet SDN switch with OpenFlow support. It sounded so cool that I even ordered a two-pack as I thought it would be more fun to have two OpenFlow switches to mess around with). The project was funded successfully, but embarrassingly when the beautifully-made boards arrived in early 2016, for some reason I never quite got around to playing with them. I think it was in part because it was just a printed circuit board without a case and without easy access to 3D printing I was turned Continue reading

Heavy Networking 562: Juniper’s Paragon Automation Portfolio Prioritizes Service Experience (Sponsored)

In today’s sponsored show with Juniper Networks, we dive into Juniper's Paragon product portfolio, which measures service quality for critical applications. The portfolio allows service providers and enterprises to get deeper visibility into, and automated control over, their networks. Our guests from Juniper to walk us through the portfolio are Peter Weinberger and Jonas Krogell.

Heavy Networking 562: Juniper’s Paragon Automation Portfolio Prioritizes Service Experience (Sponsored)

In today’s sponsored show with Juniper Networks, we dive into Juniper's Paragon product portfolio, which measures service quality for critical applications. The portfolio allows service providers and enterprises to get deeper visibility into, and automated control over, their networks. Our guests from Juniper to walk us through the portfolio are Peter Weinberger and Jonas Krogell.

The post Heavy Networking 562: Juniper’s Paragon Automation Portfolio Prioritizes Service Experience (Sponsored) appeared first on Packet Pushers.

SEC 3. Building your own containerised PKI (root CA) with Linux and Docker to simplify and secure network automation

Hello my friend,

You know our passion to network automation. We truly believe, that this is the only sustainable way for the network development and operation. In the same time, one the key goals of the automation is to make your network secure and safe. Therefore, the security of the automation and communication channels used by automation is very important. So today we’ll take a look how to build



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No part of this blogpost could be reproduced, stored in a 

retrieval system, or transmitted in any form or by any 

means, electronic, mechanical or photocopying, recording, 

or otherwise, for commercial purposes without the 

prior permission of the author.

Can automation make your network better?

Automation is the key component of the perpetual engine of your network development and operation. It allows you to run the network quick, stable, and safe. And we are willing you to benefit as much as you can from that.

We have created a new training, which is focused only on the Nornir and you can use it for the network (and not only) automation. It is an organic extension of our network automation training, which assumes you are already Continue reading

Smart ways to compare files on Linux

Commands for comparing files have proliferated since the early days of Linux. In this post, we'll look at a suite of commands available for comparing files and highlight the advantages that some of the newer ones provide.diff One of the oldest and still popular commands for detecting and reporting on file differences is the diff command. Comparing two lists of meeting attendees, the diff command will simply and clearly show you the differences.$ diff attendance-2020 attendance-2021 10,12c10 < Monroe Landry < Jonathon Moody < Donnell Moore --- > Sandra Henry-Stocker Only the lines that are different are displayed. The output precedes lines that are only in the first file with < and those only in the second file with >.To read this article in full, please click here

Smart ways to compare files on Linux

Commands for comparing files have proliferated since the early days of Linux. In this post, we'll look at a suite of commands available for comparing files and highlight the advantages that some of the newer ones provide.diff One of the oldest and still popular commands for detecting and reporting on file differences is the diff command. Comparing two lists of meeting attendees, the diff command will simply and clearly show you the differences.$ diff attendance-2020 attendance-2021 10,12c10 < Monroe Landry < Jonathon Moody < Donnell Moore --- > Sandra Henry-Stocker Only the lines that are different are displayed. The output precedes lines that are only in the first file with < and those only in the second file with >.To read this article in full, please click here

Full Stack Journey 051: Knowing When It’s Time For A Career Transition

Career changes and transitions seem inevitable in technology. When is the right time? How do you know you're ready? Is it a smart move? How do you deal with imposter syndrome? Full Stack Journey Scott Lowe and guest Massimo Re Ferre discuss these and other IT career questions.

The post Full Stack Journey 051: Knowing When It’s Time For A Career Transition appeared first on Packet Pushers.

Introducing ACE Cloud Operations

Recently Aviatrix developed a new course in the Aviatrix Certified Engineer (ACE) program. Aviatrix Certified Engineer – Multi-Cloud Network Operations (or ACE Cloud Ops for short) is catered towards cloud operations practitioners who need to successfully run, operate, and manage business-critical Day-2 workloads in the cloud. The ACE program recently announced its 10,000th certified engineer. … Continue reading Introducing ACE Cloud Operations →

History of FARNT with Laura Breeden

FARNT was a regional consortium of smaller network operators that eventually helped drive the adoption of TCP/IP and the global Internet, as well as helping efforts to commercialize Internet access. Join Donald Sharp and Russ White as Laura Breeden discusses the origins of FARNT, it’s importance in the adoption of early Internet technologies, and the many hurdles regional network operators had to overcome.

Laura is now the Board Chair at the National Digital Inclusion Alliance.

download

On the ‘net: The Art of Conviction

I was recently a guest on The Art of Conviction podcast, where we covered a bit of my background, some of the challenges I’ve faced in getting where I am, and then we moved into a discussion around my recently finished dissertation. I’m working to find places to publish more in the area of worldview and culture; I’ll point to those here as I can find a “home” for that side of my life.

You can find the recording here.

Beyond my episode, The Art of Conviction is a fascinating podcast; you should really subscribe and listen in.

Palo Alto grows cloud security portfolio with new Prisma release, Bridgecrew buy

Palo Alto had a busy week. First, it rolled out a number of new features for its Prisma cloud-based security package, and then it announced plans to buy cloud security vendor Bridgecrew for about $156 million in cash.Palo Alto's Prisma is a cloud-based security package that includes access control, advanced threat protection, user behavior monitoring and other services that promise to protect enterprise applications and resources. Managed through a single console, Prisma includes firewall as a service, zero-trust network access, a cloud access security broker and a secure web gateway.To read this article in full, please click here

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