Project Calico 3.30+ Hackathon: Show Us What You Can Build!

Calico Hackathon Logo

Build the Future of Cloud-Native Networking! 🚀

The Calico community moves fast. With the releases of Calico 3.30 and 3.31, brings improvements in scalability, network security, and visibility. Now, we want to see what YOU can do with them!

We’re excited to officially invite you to the Project Calico 3.30+ Community Hackathon.

Whether you’re a seasoned eBPF expert or a newcomer to the Gateway API, we welcome your innovation and  your ideas!

🔥 What’s in the Toolkit?

We’ve packed Calico 3.30+ with powerful features ready for you to hack on:

  • 🔹 Goldmane & Whisker: High-performance flow insights meets a sleek, operator-friendly UI.
  • 🔹 Staged Policies: The “Safety First” way to test Zero Trust before enforcing it.
  • 🔹 Calico Ingress Gateway: Modern, Envoy-powered traffic management via the Gateway API.
  • 🔹 Calico Cloud Ready: Connect open-source clusters to a free-forever, read-only tier for instant visualization and troubleshooting.
  • 🔹 IPAM for Load Balancers: Consistent IP strategies for MetalLB and beyond.
  • 🔹 Advanced QoS: Fine-grained bandwidth and packet rate controls.

💡 Inspiration: What Can You Build?

Whether you’re a networking guru or an automation Continue reading

PP097: How and Why to Turn the Browser into a Universal Security Agent (Sponsored)

With the rise of cloud services and SaaS, the browser has become a primary productivity tool. It’s also a primary vector for malware, phishing, identity theft, data leaks, and other risks. On today’s sponsored episode with Palo Alto Networks, we dive into browser security. We discuss risks to the browser and how they differ from... Read more »

Tech Bytes: We Need More Network Engineers; Here’s Ideas to Make It Happen (Sponsored)

Where are all the network engineers? OK, obviously, there are network engineers out there, like the thousands of you listening to this podcast. But there’s an impression that the current generation is aging out of the profession while fewer young people are taking on network engineering as a career. At the same time, networks are... Read more »

Worth Reading 021726


If I learned one thing at NANOG 96, it’s how to build an up-to-date state of the art AI data centre! As I now understand it, the process is quite simple.

 


New AI models usually create excitement among the true believers and this year hasn’t been an exception. OpenAI and Anthropic released GPT-5.3 Codex and Claude Opus 4.6 respectively on the same day, February 5. T

 


When my phone stopped working last month during the latest calamitous network outage to hit the US, I assumed it was that pesky Amazon cloud POP in North Virginia playing up again. After all, it was AWS’s VA data centre that triggered three (3) of the last big network failures in North America.

 


Starlink can sometimes shift data more quickly than is possible on terrestrial networks, and improves connectivity in remote areas. But the space broadband service also presents new technical and regulatory challenges, according to speakers who took to the stage on Tuesday at the Asia Pacific Regional Internet Conference on Operational Technologies (APRICOT) in Jakarta, Indonesia.

 


The Domain Name System (DNS) infrastructure is infamous for facilitating reflective amplification attacks. Countermeasures such as server shielding, access control, Continue reading

Recreating a Real-World BGP Hijack with the Kathará Network Emulator

Kathará is a container-based network emulator developed by researchers at Roma Tre University in Italy as a modern successor to the Netkit network emulator. Coincidentally, Roma Tre University is also the same organization that developed BGPlay, a tool used to investigate BGP incidents.

Kathará uses Docker containers to emulate network devices. This approach enables users to create complex network topologies comprised of dozens of routers on a modest laptop. Kathará uses simple text-based configuration files that are easy to version-control and share. It’s open source, actively maintained, and runs on Linux, Windows, and MacOS.

In this tutorial, I will use the Kathará network emulator to recreate one of the most famous BGP hijacking incidents in Internet history, the 2008 YouTube hijack. By building a small network topology and simulating a similar attack, we will learn both the fundamentals of Kathará and to gain hands-on experience with BGP security concepts.

Install Kathará

First, we will install the Kathará network emulator and test it by setting up a basic lab environment.

Install Docker

Kathará uses Docker as its container runtime. Install Docker on your Linux system using the official Docker installation guide.

After that, add your user to the docker group Continue reading

Explore Configurations of Unfamiliar Devices with netlab

Apart from IP multicast and QoS, netlab can configure commonly used networking technologies across dozens of devices from most networking vendors. Why don’t you use all that embedded knowledge (supported by hundreds of integration tests) to help you configure unfamiliar devices?

You don’t have to install VM or container managers (Vagrant/containerlab), or beg vendors to give you access to device VMs/containers, to get working device configurations. All you need is a Python package that works on Windows1, macOS, or Linux.

It’s as simple as this:

Read more …

NANOG 96

NANOG 96 was held in February 2026 at San Francisco. Here are my impressions on some of the presentations that were made at that meeting.

Aleix Segura Vendrell: Pria Spanyol yang Tahan Napas 24 Menit 3 Detik di Bawah Air

Aleix Segura Vendrell adalah nama yang sudah terukir dalam sejarah freediving dunia. Pria Spanyol ini berhasil mencapai prestasi luar biasa dalam discipline static apnea dengan memecahkan rekor dunia Guinness. Pada kesempatan ini kita akan membahas siapa dia, bagaimana caranya mencapai pencapaian fenomenal ini, dan apa artinya bagi dunia olahraga serta batas kemampuan manusia.

Siapa Itu Aleix Segura Vendrell?

Aleix Segura Vendrell lahir di Barcelona, Spanyol. Ia bukan sekadar atlet biasa. Sejak awal, Aleix menunjukkan ketertarikan kuat pada dunia bawah air. Melalui spearfishing, ia mengembangkan kemampuan apnea atau menahan napas dalam air dan akhirnya masuk ke dunia kompetitif freediving sejak 2011.

Berbeda dengan kebanyakan atlet, Aleix memiliki karier profesional di luar olahraga. Ia bekerja sebagai arsitek di Barcelona, namun tetap konsisten menjalankan latihan ekstrem untuk mencapai batas sistem pernapasan manusia.

Lebih jauh lagi, Aleix berhasil meraih gelar juara dunia static apnea di beberapa federasi besar. Hal ini menegaskan posisinya sebagai salah satu atlet freediving terbaik di dunia.

Rekor Dunia: 24 Menit 3 Detik Tahan Continue reading

Mengenal Lebih Dekat Ikan Lele: Khasiat, Budidaya, dan Tips Memasak

Ikan lele termasuk salah satu ikan air tawar paling populer di Indonesia. Selain harganya terjangkau, lele menawarkan rasa gurih dan tekstur lembut. Karena itu, banyak orang menjadikan ikan lele sebagai bahan utama masakan tradisional maupun modern. Selain itu, peternak menyukai lele karena mudah dibudidayakan dan cepat berkembang biak.

Sejarah dan Asal Usul Ikan Lele

Ikan lele berasal dari Asia Tenggara dan sudah dikenal masyarakat Indonesia sejak lama. Lele menonjol karena kemampuan bertahan hidup yang tinggi. Bahkan, ikan ini mampu hidup di kolam alami maupun buatan. Selain itu, lele cepat beradaptasi di lingkungan yang berbeda. Oleh karena itu, popularitas lele terus meningkat seiring waktu.

Kandungan Nutrisi Ikan Lele

Ikan lele tidak hanya lezat, tetapi juga kaya nutrisi penting. Berikut beberapa kandungan utama per 100 gram lele:

Nutrisi Kandungan
Protein 18-20 g
Lemak sehat 5-6 g
Omega-3 300 mg
Vitamin B12 1.2 µg
Mineral Kalsium, Fosfor, Zat Besi

Selain itu, lele rendah kalori sehingga cocok untuk diet sehat. Bahkan, kandungan omega-3 membantu Continue reading

Metabolisme Bakteri vs Virus: Perbedaan, Dampak, dan Cara Hidup

Pengantar Perbedaan Bakteri dan Virus

Bakteri dan virus sering disamakan karena sama-sama mikroskopis. Namun, keduanya memiliki perbedaan metabolisme yang sangat mendasar. Oleh karena itu, pemahaman ini menjadi penting dalam biologi, kedokteran, dan kesehatan masyarakat. Selain itu, perbedaan metabolisme juga memengaruhi cara pengobatan dan pencegahan penyakit. Dengan memahami konsep ini, kita dapat menentukan strategi penanganan infeksi secara tepat. Selanjutnya, artikel ini membahas perbedaan tersebut secara rinci, sistematis, dan mudah dipahami.

Pengertian Metabolisme dalam Biologi

Metabolisme adalah seluruh reaksi kimia yang terjadi dalam makhluk hidup. Proses ini mendukung pertumbuhan, reproduksi, dan kelangsungan hidup. Selain itu, metabolisme mencakup anabolisme dan katabolisme. Anabolisme membangun molekul kompleks. Sebaliknya, katabolisme memecah molekul untuk menghasilkan energi. Dengan demikian, metabolisme menjadi ciri utama kehidupan sejati. Oleh karena itu, perbedaan metabolisme menegaskan perbedaan tingkat kehidupan bakteri dan virus.

Metabolisme pada Bakteri

Bakteri merupakan organisme prokariotik yang hidup mandiri. Oleh sebab itu, bakteri memiliki sistem metabolisme lengkap. Bakteri mampu menghasilkan energi sendiri. Selain itu, bakteri dapat melakukan respirasi aerob atau anaerob. Continue reading

The Current AI Networking Wave Will Be A Tsunami Of Money By 2027

$230.70. That’s it.

If you take the $34.6 billion that Arista Networks has made in product revenue since it was founded way back in 2004 by Andy Bechtolsheim, David Cheriton, and Kenneth Duda and divide it by the 150 million cumulative ports that it has shipped (with the product ramp really starting in 2010 after the company dropped out of stealth mode in 2009) This is a remarkable number give the fact that Arista has tended to ship very expensive ports that often cost $1,000 or more without services on top of them. …

The Current AI Networking Wave Will Be A Tsunami Of Money By 2027 was written by Timothy Prickett Morgan at The Next Platform.

TNO055: Testing as a Service for Telco Network Services

Scott talks with Mark Gebert from Verizon about something that sits at the heart of every reliable enterprise network: testing. Automation is moving fast in the telco world, but automation without testing is just an accident waiting to happen. They unpack what makes enterprise service provisioning so complex—multi-vendor networks, optical and IP gear, security functions,... Read more »

HN814: Automating Your Network with Cisco Crosswork Workflow Manager (Sponsored)

Our topic today is building and running network workflows. If your network workflows live in a spreadsheet, a SharePoint document, or in your head, you really need a workflow manager. A workflow manager brings scalability, repeatability, and consistency to your network operations team. In this sponsored episode, we discuss Cisco Crosswork Workflow Manager. Our guests... Read more »

Shedding old code with ecdysis: graceful restarts for Rust services at Cloudflare

ecdysis | ˈekdəsəs |

noun

the process of shedding the old skin (in reptiles) or casting off the outer cuticle (in insects and other arthropods).

How do you upgrade a network service, handling millions of requests per second around the globe, without disrupting even a single connection?

One of our solutions at Cloudflare to this massive challenge has long been ecdysis, a Rust library that implements graceful process restarts where no live connections are dropped, and no new connections are refused. 

Last month, we open-sourced ecdysis, so now anyone can use it. After five years of production use at Cloudflare, ecdysis has proven itself by enabling zero-downtime upgrades across our critical Rust infrastructure, saving millions of requests with every restart across Cloudflare’s global network.

It’s hard to overstate the importance of getting these upgrades right, especially at the scale of Cloudflare’s network. Many of our services perform critical tasks such as traffic routing, TLS lifecycle management, or firewall rules enforcement, and must operate continuously. If one of these services goes down, even for an instant, the cascading impact can be catastrophic. Dropped connections and failed requests quickly lead to degraded customer performance and business impact.

When Continue reading

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