Keep up with Tech ? How Far ?

One of the hardest things to do is to keep up with tech, now thats some thing every once in a while we hear from our colleagues and we might say it to ourselves as well. There are two things which needs some discussion here

  1. New certifications in Networking scope
  2. New paths like programming and cloud services

After working for a while, am at a point where I have been exposed to so many technologies within networking, there is Service provider, datacenter, enterprise and other aspects like programming and cloud services.

The choice to take both paths is not efficient if I give it a good thought, but on the other hand its always good to know other aspects of the job as well, am not trying to be diplomatic but rather speaking from experience here.

One path is to be an expert in certain aspect of the field, the other side is to invest time to learn new things, choice is not easy, any field is vast and it takes life time just to be good at one thing, imagine trying to be good at multiple things, it wont work for many people.

Other day I had to explore Continue reading

Making Time For Yourself

I was a recent pop-in guest on the Network Collective Holiday Show with my friends Jordan Martin and Tony Efantis. One of the questions they had been asking their guests was about the big lessons we’ve learned this year. As I thought back on the roller coaster ride that was 2020, I realized that one of the biggest lessons that I’ve learned is that I need to make time for the important things for myself.

Mark It Down

I know it sounds like a given, but we all need to make time for ourselves. I realized that when my usual schedule of running myself in overdrive and jumping from one event or travel opportunity to the next evaporated back in March. I found myself sitting at home and working toward some uncertain future. I never thought that there were going to be huge problems but I also didn’t know how things would end up turning out.

As the days grew into weeks and eventually into months, I quickly figured out that the normal I once knew was going to stay gone for quite a while. In place of that was a situation that I needed to adjust to. And that Continue reading

DC. Part 17. High-available server cluster connected to DC fabric.

Hello my friend,

In the vast majority of cases we speak about the network, network devices and network configuration. Which is absolutely legitimate, as we write about the networks. However, sometimes exactly the same network technologies live in the server world and do the same things under different names. So today we’ll take a look how to create the high-available server cluster using the Keepalived.



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Servers are perfect for automation

The network exists to span the applications and customers. However, it doesn’t host applications itself; instead, they are hosted on the servers. That’s why automation of the servers is very big topic and, in all honesty, the automation originally has started in the server world.

In the same time, the tools and approaches you learn at our network automation training are universal: they are applicable both for the network and servers automation. Automate all things!

At our network automation training we explore the Linux setup and Continue reading

Using One Cron Parser Everywhere With Rust and Saffron

Using One Cron Parser Everywhere With Rust and Saffron
Using One Cron Parser Everywhere With Rust and Saffron

As part of the development for Cron Triggers on Cloudflare Workers, we had an interesting problem to tackle relating to parsers and the cron expression format. Cron expressions are the format used to write schedules in Cron Triggers, and extensions for cron expressions are everywhere. They vary between parsers and platforms as well, and aren’t standardized by a governing body, which means most parsers out there support many different feature sets, which isn’t good if you’d like something off the shelf that just works.

It can be tough to find the right parser for each part of the Cron Triggers stack, when its user interface, API, and edge service are all written in different languages. On top of that, it isn’t practical to reinvent the wheel multiple times by writing the same parser in different languages and make sure they all match perfectly. So you’re likely stuck with a less-than-perfect solution.

However, in the end, because we wrote our backend service in Rust, it took much less effort to solve this problem. Rust has a great ecosystem for working across multiple languages, which allows us to write a parser once and pull it from the backend to the frontend and Continue reading

Weekend Reads 122420

The easiest way to understand the concept is with an example. Consider a passive optical fiber network where up to 32 homes share the same neighborhood fiber. In the most common GPON technology, the customers on one of these neighborhood nodes (called a PON) share a total of 2.4 gigabits of download data.

The push to develop and deploy applications faster has evolved from simply a goal for developers to a business-level priority that affects every organization’s bottom line. To meet this goal, companies have begun to de-silo development, operations, and security, moving toward a DevSecOps model to deliver

In a survey of 603 free and open source software (FOSS) contributors, the Linux Foundation’s Open Source Security Foundation (OpenSSF) and the Laboratory for Innovation Science at Harvard University (LISH) discovered that the average FOSS developer only spent 2.3% of their time on improving the security of their code.

Chris Lewis joins EFF hosts Cindy Cohn and Danny O’Brien as they discuss how our access to knowledge is increasingly governed by click-wrap agreements that prevent users from ever owning things like books and music, and how this undermines the legal doctrine of “first sale” – which states that once Continue reading

Going Virtual with Community Networks Voices in the Asia-Pacific: CNX APAC 2020

Each community network deployment has its own characteristics – ranging from the physical terrain to environmental conditions to local and cultural contexts. Having been involved in some 150 deployments, I can safely say no two are the same.

We helped establish CNX APAC in 2017 as a means to better understand the role, relevance, and evolution of community networks (CNs). It was designed to explore the different characteristics that make up CNs, their local context, the challenges they face, and the opportunities they create. It’s an event in the spirit of community, where community network practitioners come to exchange knowledge, share ideas, inspire others, and be inspired themselves.

For the past three years, we have typically held these as physical events located around some of our community networks deployments in the region. This allowed participants to get hands on with a working CN. The events were multi-dimensional in nature with a conference and knowledge-sharing session, coupled with training and technology demonstrations.

“To make community networks sustainable in the long run, the first thing is, the community has to own it, and the community needs to own it.”
— Mahabir Pun, Nepal

The impact of the global pandemic meant that Continue reading

Year in Review: The Most Viewed Docker Blog Posts of 2020 Part 1

2020 was some type of year…as we wrap up a year that undoubtedly will never be forgotten, we rounded up the most viewed Docker blog posts. The following posts are some of what you, the Docker community, found to be most interesting and useful. Which was your favorite?

10) Announcing the Compose Specification

Starting the list with a *bang* is a post highlighting that we created a new open community to develop the Compose Specification. This new community is run with open governance and with input from all interested parties, allowing us together to create a new standard for defining multi-container apps that can be run from the desktop to the cloud. 

9) Advanced Dockerfiles: Faster Builds and Smaller Images Using BuildKit and Multistage Builds 

This post showed some more advanced patterns that go beyond copying files between a build and a runtime stage, allowing one to get the most out of the multistage build feature. Who doesn’t want more efficient multistage Dockerfiles? 

8) Containerized Python Development – Part 2

The second in a series, this post discussed how to set up and wire other components to a containerized Python service. It showed a good way to Continue reading

Holiday Season Update from Lisbon

Holiday Season Update from Lisbon
Holiday Season Update from Lisbon

It's the end of the year, so we thought it would be a great time to give you an update on how we're doing and what we're planning for 2021. If you're reading this, you know we like to share everything we do at Cloudflare, including how the organization is evolving.

In July, John Graham-Cumming wrote a blog post entitled Cloudflare's first year in Lisbon. and showed how we went from an announcement, just a few months before, to an entirely bootstrapped and fully functional office. At the time, despite a ramping pandemic, the team was already hard at work doing a fantastic job scaling up and solidifying our presence here.

A few weeks later, in August, I proudly joined the team.

The first weeks

Cloudflare is, by any standard, a big company. There's a lot you need to learn, many people you need to get to know first, and a lot of setup steps you need to get through before you're in a position to do actual real productive work.

Joining the company during COVID was challenging. I felt just as excited as I was scared. We were (and still are) fully working from home, I didn't have a Continue reading

Merry Christmas and Happy New Year 2021

Dear friend,

This year was unbelievable. But despite all the horrible things related to COVID19 and lockdown, you and we are still alive. Moreover, the networking and automation industry is growing. It means, we are together on the right side, but we need continuously sharp existing and develop new skills.

We sincerely thank you for your interest in our projects, blogs and trainings. For your questions, comments and suggestions. It means for us a lot.

We wish you Merry Christmas and Happy New Year! Stay healthy and safe during the holiday times and the whole new year.

All the best,
Team Karneliuk.com

We’re Done for This Year

As always, it’s time to shut down our virtual office and disappear until early January… unless of course you have an urgent support problem. Any paperwork ideas your purchasing department might have will have to wait until 2021.

I hope you’ll be able to disconnect from the crazy pace of networking world, forget all the unicorns and rainbows (and broccoli forest of despair), and focus on your loved ones – they need you more than the dusty router sitting in a remote office. We would also like to wish you all the best in 2021!

We’re Done for This Year

As always, it’s time to shut down our virtual office and disappear until early January… unless of course you have an urgent support problem. Any paperwork ideas your purchasing department might have will have to wait until 2021.

I hope you’ll be able to disconnect from the crazy pace of networking world, forget all the unicorns and rainbows (and broccoli forest of despair), and focus on your loved ones – they need you more than the dusty router sitting in a remote office. We would also like to wish you all the best in 2021!

JNCIE-DC lab in EVE-NG

As explained in my previous post on my home servers, I have a bare metal system deployed with EVE-NG Pro installed. As I’m (slowly) preparing for the JNCIE-DC certification I wanted to share the topology that I’m using. As the hardware required to study for the JNCIE-DC is quite significant, it makes a lot of […]

The post JNCIE-DC lab in EVE-NG first appeared on Rick Mur.

The Read Aloud Cloud: An Interview With Forrest Brazeal On His New Book

 

It's Christmas time and you've been wracking your brain trying to find the perfect gift that will teach your loved ones about the cloud in a simple and entertaining way. What to do?

Fortunately for you, Santa has a new elf this year—Forrest Brazeal—who is part AWS Serverless Hero, part skilled cartoonist, and part cloud guru.

Yes, it's a cartoon book about the cloud! 

 

No, I didn't think it could be done either, but Forrest pulled it off with a twinkle in his eyes and little round belly that shook when he laughed, like a bowl full of jelly.

One of the many five-star reviews:

The Read Aloud Cloud is a delightful book. It's 165 pages of hand-drawn cartoons, entertaining verse, and hard-won wisdom.

It truly is a load of fun to flip through. I read it to my kids (8 & 6), and they love it. I'll share it with my parents so they can finally understand what I do. I learned a ton about the history of computing and of course all the ways that we as humans stumble through making our computers do what we want.

Continue reading

Chapter Members Pool Ideas to Inspire New Use Case on Content Filtering

Earlier this year, chapter members from around the world were asked to assist a government minister with an important project. The minister had been tasked with giving an emergency briefing on content filtering and needed the chapter members to help assess an important question. Would the critical properties of the Internet Way of Networking – the foundation that makes the Internet work for everyone – be impacted by the minister’s new policy on content filtering?

While some of the Chapter members held experience in Internet policy, others were relative novices. But as they explored the multiple dimensions and implications of different filtering and blocking techniques, they had a new, powerful tool in their arsenal: the Internet Impact Assessment Toolkit.

The government minister was fictitious, part of a mock scenario created by the Internet Society in collaboration with chapter members participating in chapter workshops. It was a powerful demonstration of how the Internet Impact Assessment Toolkit can evaluate the real-world impact of proposed Internet policy.

During the Latin American Chapter Workshop, about 140 people joined the session dedicated to the discussion of content filtering. Once the mock case was presented, participants were invited to explore the various angles of different filtering and Continue reading

Compiling Qt with Docker multi-stage and multi-platform

This is a guest post from Viktor Petersson, CEO of Screenly.io. Screenly is the most popular digital signage product for the Raspberry Pi. Find Viktor on Twitter @vpetersson.

For those not familiar with Qt, it is a cross-platform development framework that is used in a wide range of products, including cars (Tesla), digital signs (Screenly), and airplanes (Lufthansa). Needless to say, Qt is very powerful. One thing you cannot say about the Qt framework, however, is that it is easy to compile — at least for embedded devices. The countless blog posts, forum threads, and Stack Overflow posts on the topic reveal that compiling Qt is a common headache.

As long-term Qt users, we have had our fair share of battles with it at Screenly. We migrated to Qt for our commercial digital signage software a number of years ago, and since then, we have been very happy with both its performance and flexibility. Recently, we decided to migrate our open source digital signage software (Screenly OSE) to Qt as well. Since these projects share no code base, this was a greenfield opportunity that allowed us to start afresh and explore Continue reading

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