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Technology Short Take 135

Welcome to Technology Short Take #135! This will likely be the last Technology Short Take of 2020, so it’s a tad longer than usual. Sorry about that! You know me—I just want to make sure everyone has plenty of technical content to read during the holidays. And speaking of holidays…whatever holidays you do (or don’t) celebrate, I hope that the rest of the year is a good one for you. Now, on to the content!

Networking

Arthur Chiao cracks open kube-proxy, a key part of Kubernetes networking, to expose the internals, and along the way exposes readers to a few different technologies. This is a good read if you’re trying to better understand some aspects of Kubernetes networking.
Gian Paolo takes a look at using tools like curl and jq when working with networking-related APIs.
It’s not unusual to see “networking professionals need to learn developer tools,” but how often do you see “developers need to learn these networking tools”? Martin Heinz discusses that very topic in this post.

Servers/Hardware

Kay Singh collects some user comments on the new M1-powered Apple hardware.
Matt Bagnara shares his journey of building a mechanical keyboard from scratch. Lots of geekery in here!

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Is LinkedIn Still Relevant to Your Career?

We all know LinkedIn has been available since the year 2002. It is popularly known as a place where professionals in every and any aspect of life can be found. People these days wonder if joining this social media platform is still important. If you don’t make use of LinkedIn properly, your messages, resumes, and all other activities on the website could take lots of hours, and it could waste important time you could use to be productive in other ways.

Do You Need a LinkedIn Profile for Your Career?

The simple answer to this question is “yes.” Even if you don’t make use of it often or at all, it’ll be nice to simply create the account. It doesn’t take anything but time to create this. You can then make an appointment on your calendar to check the site every 6 months or so. Whenever you have anything to add, you can do so. Make sure you add in huge accomplishments over your career span. Also from these scheduled checks of your profile, you should change your current job listing on LinkedIn whenever you have an occupational switch.

Hiring managers and recruiters make use of LinkedIn to look Continue reading

Encrypting your WAF Payloads with Hybrid Public Key Encryption (HPKE)

The Cloudflare Web Application Firewall (WAF) blocks more than 72B malicious requests per day from reaching our customers’ applications. Typically, our users can easily confirm these requests were not legitimate by checking the URL, the query parameters, or other metadata that Cloudflare provides as part of the security event log in the dashboard.

Sometimes investigating a WAF event requires a bit more research and a trial and error approach, as the WAF may have matched against a field that is not logged by default.

Not logging all parts of a request is intentional: HTTP headers and payloads often contain sensitive data, including personally identifiable information, which we consider a toxic asset. Request headers may contain cookies and POST payloads may contain username and password pairs submitted during a login attempt among other sensitive data.

We recognize that providing clear visibility in any security event is a core feature of a firewall, as this allows users to better fine tune their rules. To accomplish this, while ensuring end-user privacy, we built encrypted WAF matched payload logging. This feature will log only the specific component of the request the WAF has deemed malicious — and it is encrypted using a customer-provided key Continue reading

Developing NetBox Plugin – Part 1 – Setup and initial build

This is first post in my series showing how to develop NetBox plugin. We'll talk about what NetBox plugins are and why would you want one. Then I'll show you how to set up development environment. We'll finish by building base version of our custom plugin.

Developing NetBox Plugin tutorial series

Developing NetBox Plugin - Part 1 - Setup and initial build
Developing NetBox Plugin - Part 2 - Adding web UI pages
Developing NetBox Plugin - Part 3 - Adding search panel
Developing NetBox Plugin - Part 4 - Small improvements
Developing NetBox Plugin - Part 5 - Permissions and API

What are NetBox plugins?

NetBox plugins are small, self-contained, applications that add new functionality. This could range from adding new API endpoint to fully fledged apps. These apps can provide their own data models, views, background tasks and more. We can also inject content Continue reading

Securing the post-quantum world

Quantum computing is inevitable; cryptography prepares for the future

Quantum computing began in the early 1980s. It operates on principles of quantum physics rather than the limitations of circuits and electricity, which is why it is capable of processing highly complex mathematical problems so efficiently. Quantum computing could one day achieve things that classical computing simply cannot.

The evolution of quantum computers has been slow. Still, work is accelerating, thanks to the efforts of academic institutions such as Oxford, MIT, and the University of Waterloo, as well as companies like IBM, Microsoft, Google, and Honeywell. IBM has held a leadership role in this innovation push and has named optimization the most likely application for consumers and organizations alike. Honeywell expects to release what it calls the “world’s most powerful quantum computer” for applications like fraud detection, optimization for trading strategies, security, machine learning, and chemistry and materials science.

In 2019, the Google Quantum Artificial Intelligence (AI) team announced that their 53-qubit (analogous to bits in classical computing) machine had achieved “quantum supremacy.” This was the first time a quantum computer was able to solve a problem faster than any classical computer in existence. This was considered a significant milestone.

How to Build a Global Network that Complies with Local Law

We’ve spent a lot of time over the course of this week talking about Cloudflare engineers building technical solutions to improve privacy, increase control over data, and thereby, help our customers address regulatory challenges. But not all challenges can be solved with engineering. We sometimes have to build policies and procedures that anticipate our customers’ concerns. That has been an approach we’ve used to address government and other legal requests for data throughout the years.

Governments around the world have long had an interest in getting access to online records. Sometimes law enforcement is looking for evidence relevant to criminal investigations. Sometimes intelligence agencies are looking to learn more about what foreign governments or actors are doing. And online service providers of all kinds often serve as an access point for those electronic records.

For service providers like Cloudflare, though, those requests can be fraught. The work that law enforcement and other government authorities do is important. At the same time, the data that law enforcement and other government authorities are seeking does not belong to us. By using our services, our customers have put us in a position of trust over that data. Maintaining that trust is fundamental to Continue reading

VMware TKGI – Deployment of Harbor Container Registry fails with error

This is an article from the VMware from Scratch series During the process of preparation to Install Tanzu Kubernetes Grid Integrated Edition (TKGI v1.8) on vSphere with NSX-T Data Center (v3.0.2) one of the steps is to use Ops Manager to deploy Harbor Container Registry (in this case v2.1.0). The process of deployment ended with Harbor error several times so I’m sharing here my solution in order to ease things out for you giving the fact that I didn’t come across any solution googling around. In the process, the Harbor Registry product tile is downloaded from the VMware Tanzu network portal, imported

The post VMware TKGI – Deployment of Harbor Container Registry fails with error appeared first on How Does Internet Work.

Better Together: Apstra & Juniper – Jeff Tantsura, Head of Networking Strategy @ Apstra

Hear from Jeff Tantsura what Apstra is and why they are joining forces with Juniper. Jeff is an industry veteran who is also very active in IETF and other standards bodies. In this episode we discuss EVPN, BGP, IP fabric, Intend Based Networking, fabric orchestration and RIFT is also mentioned.

The links mentioned in this episode:
https://techfieldday.com/companies/apstra/
https://datatracker.ietf.org/doc/draft-irtf-nmrg-ibn-concepts-definitions/
https://academy.apstra.com/

Reviving Old Content, Part 2

Continuing my archeological explorations, I found a dusty bag of old QoS content:

I kept digging and turned out a few MPLS, BGP, and ADSL nuggets worth saving:

Reviving Old Content, Part 2

Continuing my archeological explorations, I found a dusty bag of old QoS content:

I kept digging and turned out a few MPLS, BGP and ADSL nuggets worth saving:

Quotes To Remember

https://codingpackets.com/blog/quotes-to-remember

Quotes To Remember

https://codingpackets.com/blog/quotes-to-remember

Quotes To Remember

A great quote is worth remebering. Here are some that I have heard over the years that I like to keep readily available. Compassion Planning Learning Success Sports {{ qt.quoteBlock( attribution="Bruce Lee", text="There are no limits. There are plateaus, but you must not stay there, you...continue reading

Quotes To Remember

A great quote is worth remebering. Here are some that I have heard over the years that I like to keep readily available. Compassion Planning Success Sports {{ qt.quoteBlock( attribution="Bruce Lee", text="There are no limits. There are plateaus, but you must not stay there, you must go...

DNS 2XL

This is the second part of a technical report on a detailed exploration of the way the Internet’s Domain Name System (DNS) interacts with the network when the size of the application transactions exceeds the underlying packet size limitations of hosts and networks. In this part we explore UDP-only and TCP-only behavious and also look at how to maximise the resilience of the DNS when handling larger responses.

The Network Upgrades You Should Consider in 2021

As the new year dawns, take a step back and think about how your network and team can be improved to meet emerging demands. Here's a look at four key areas you should consider addressing.

AWS improves SD-WAN-to-cloud connectivity with Cisco, Aruba, Arista and others

Amazon Web Services has rolled out a new, more native way to connect SD-WAN infrastructures with AWS resources.Introduced at its re:Invent virtual event, AWS Transit Gateway Connect promises a simpler, faster, and more secure way for customers to tie cloud-based resources back to data centers, remote office workers or other distributed access points as needed.Thirteen networking vendors including Cisco, Aruba, Arista, Alkira, Fortinet, Palo Alto, and Versa announced support for the technology, which offers higher throughput and increased security for distributed cloud workloads.To read this article in full, please click here

AWS improves SD-WAN-to-cloud connectivity with Cisco, Aruba, Arista and others

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Networking

Servers/Hardware

Developing NetBox Plugin tutorial series

Contents

What are NetBox plugins?

Quantum computing is inevitable; cryptography prepares for the future