This Week in NET

This Week in NET

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This Week in NET episodes

  • This Week in Net: Cloudflare's farewell to Railgun (and its relevance)

    This Week in Net: Cloudflare's farewell to Railgun (and its relevance)

    Welcome to our weekly review of stories from our blog and other sources, covering a range of topics from product announcements, tools and features to disruptions on the Internet. João Tomé is joined by our CTO, John Graham-Cumming.

    In this week's program, we discuss our CEO, Matthew Prince, visiting Lisbon, Portugal (which includes a picnic). We delve into the Regional Tiered Cache, which offers an additional layer of caching for Enterprise customers with a global traffic footprint, enabling faster content delivery by reducing network latency.

    However, the main focus is bidding farewell to Railgun, a web optimization technique launched by Cloudflare ten years ago. We explore why it was developed by John Graham-Cumming, its relevance, and the decision to deprecate it in January 2024.

    Lastly, we provide a guide on how to perform dynamic data collection using Zaraz Worker Variables (Cloudflare Zaraz being our server-side third-party manager designed for speed, privacy, and security).

    You can check the blog posts:

    Reduce latency and increase cache hits with Regional Tiered Cache
    Cloudflare is deprecating Railgun
    Dynamic data collection with Zaraz Worker Variables

    31 min
  • This Week in Net: Developer opportunities, new AI-driven programmers (and a bit of TCP)

    Welcome to our weekly review of stories from our blog and other sources, covering a range of topics from product announcements, tools and features to disruptions on the Internet. João Tomé is joined by our CTO, John Graham-Cumming.

    In this week's program, we delve into the fruitful aftermath of our Developer Week. We received valuable feedback and announced the second cohort of the Workers Launchpad, featuring incredible companies building on Cloudflare's Developer Platform. Additionally, we launched our new Open Source Software Sponsorships Program.

    We also explore a piece of Internet history related to TCP, followed by a deep dive blog where we discuss how we optimized the performance of our systems to address the memory usage situation in TCP sessions. And last but not least, we explore the transformative power of AI in programming, examining how it will revolutionize the "who" and "how" of the programming world.

    Related blog posts:

    • Launching our new Open Source Software Sponsorships Program
    • Announcing Cohort #2 of the Workers Launchpad
    • Recapping Developer Week
    • Unbounded memory usage by TCP for receive buffers, and how we fixed it
    • Batteries included: how AI will transform the who and how of programming
    • For more about our Developer Week 2023, visit the Hub for every blog post and announcement — and don't miss CFTV's Developer Week programming.

      31 min
    • This Week in Net: Developer Week (AI included) special edition

      Welcome to our weekly review of stories from our blog and other sources, covering a range of topics from product announcements, tools and features to disruptions on the Internet. João Tomé is joined by our CTO, John Graham-Cumming.

      In this week's program, we go over some of the announcements we’ve made during Cloudflare's Developer Week 2023. We had several AI-related announcements for developers, but also new products and features in our developer platform related to data storage, speed, and how we're building Cloudflare on Cloudflare. In general, we show where we’re headed in the future, powering and powered by AI. Cloudflare is providing essential infrastructure for leading generative artificial intelligence (AI) companies, with products such as R2 Storage.

      It’s an incredibly exciting time to be a developer.

      At the end, we have in our "Around NET" short segment, the participation of Gift Egwuenu (based in Amsterdam), from our Developer Relations team.

      For more, visit the Developer Week Hub for every blog post and announcement — and don't miss the rest of CFTV's Developer Week programming

      35 min
    • This Week in Net: How we build stuff, privacy, security and “May the 4th”

      Welcome to our weekly review of stories from our blog and other sources, covering a range of topics from product announcements, tools and features to disruptions on the Internet. João Tomé is joined by our CTO, John Graham-Cumming.

      In this week's program, we go over blog posts related to how we built Network Analytics v2, which is a fundamental redesign of the backend systems that power Network Analytics.

      We give some “May the 4th” trends for the Star Wars fans, and go over how we are building proxy applications on top of Oxy — our modern proxy framework, developed using the Rust programming language — that must be able to handle a huge amount of traffic.
      There’s privacy highlights celebrating Australia’s Privacy Awareness Week 2023, speed and performance data in LATAM, a new DDoS amplification vector, Sudan Internet patterns during the ongoing conflict, and we welcome our new Chief Security Officer, Grant Bourzikas. Almost here, is our Developer Week.

      At the end, we have in our new “Around NET” short segment, Derek Chamorro (based in Austin, Texas — from the Hardware Keys team), after his attendance at the RSA Conference in San Francisco.

      Related blog posts:

      • Cloudflare is faster than Netskope and Zscaler across LATAM
      • How we built Network Analytics v2
      • Effects of the conflict in Sudan on Internet patterns
      • Celebrating Australia’s Privacy Awareness Week 2023
      • SLP: a new DDoS amplification vector in the wild
      • Why I joined Cloudflare as Chief Security Officer
      • Secure by default: recommendations from the CISA’s newest guide, and how Cloudflare follows these principles to keep you secure
      • Oxy: Fish/Bumblebee/Splicer subsystems to improve reliability
      • 31 min
      • This Week in Net: Security, speed (the importance of latency) and Easter trends

        Welcome to our weekly review of stories from our blog and other sources, covering a range of topics from product announcements, tools and features to disruptions on the Internet. João Tomé is joined by our CTO, John Graham-Cumming.

        In this week's program, we go over some blog posts we wrote about Internet speed, but also our Cloudflare One Zero Trust platform being named in the Gartner® Magic Quadrant™ for Security Service Edge. We talk about some announcements, such as our new Network Analytics dashboard, and how it provides security professionals with insights into their DDoS attack and traffic landscape. There’s also a hardware deep dive, related to memory bandwidth performance and some Easter, Passover and Ramadan trends.

        In our “Around NET” short segment, we “travel” to Perth, Australia, to hear from Damian Matacz, from our Network Strategy team.

        Related blog posts:

        • Internet disruptions overview for Q1 2023
        • DDoS threat report for 2023 Q1
        • Introducing Cloudflare’s new Network Analytics dashboard
        • Cloudflare One named in Gartner® Magic Quadrant™ for Security Service Edge
        • Making home Internet faster has little to do with “speed”
        • Measuring network quality to better understand the end-user experience
        • DDR4 memory organization and how it affects memory bandwidth
        • Consent management made easy and clear with Cloudflare Zaraz
        • Oxy: Fish/Bumblebee/Splicer subsystems to improve reliability
        • How Easter, Passover and Ramadan show up in Internet trends
        • Secure by default: recommendations from the CISA’s newest guide, and how Cloudflare follows these principles to keep you secure
        • 35 min
        • This Week in Net: An outage in the UK, the importance of rollbacks for developers, and how we’re hiring!

          Welcome to our weekly review of stories from our blog and other sources, covering a range of topics from product announcements, tools and features to disruptions on the Internet. João Tomé is joined by our CTO, John Graham-Cumming.

          In this week's program, which is arriving earlier due to the Good Friday holiday in Europe, we start with Cloudflare's view of the Virgin Media outage in the UK. Then, we get a bit technical and go over the root cause analysis and solution for a bug found in Cloudflare's mTLS implementation. We also talk about the importance of our newest announcement, Rollbacks for Workers Deployments, for developers. There’s a deep dive on how we use Oxy (a Rust project) to deploy new versions of long-lived server software while maintaining a reliable experience. We also discuss how we’re hiring worldwide, but specifically in Portugal (remote included).

          In our end of show “Around NET” segment we go to Washington D.C., Zaid Zaid, from our Policy and Trust team, talks about the 2023 Summit for Democracy and Project Safekeeping (that serves under-resourced organizations that are vital to the basic functioning of our global communities).

          Check the blog posts:

          • Cloudflare’s view of the Virgin Media outage in the UK
          • mTLS client certificate revocation vulnerability with TLS Session Resumption
          • Introducing Rollbacks for Workers Deployments
          • Oxy: the journey of graceful restarts
          • 31 min
          • This Week in Net: From DDoS attacks in Australia to helping protect personal information in the cloud

            Welcome to our weekly review of stories from our blog and other sources, covering a range of topics from product announcements, tools and features to disruptions on the Internet. João Tomé is joined by our CTO, John Graham-Cumming.

            In this week's program, we “travel” to Australia to talk about recent DDoS attacks on Australian university websites, and threaten more attacks (that includes some suggestions). We also talk about Cloudflare’s commitment to the 2023 Summit for Democracy that is happening in Washington D.C.. Europe’s GDPR regulation is also present when we go over how we are helping protect personal information in the cloud, all across the world. We also go technical, explaining the many faces of our Oxy framework and its importance in powering Cloudflare services and products. We also do a “show and tell” with our R2 Pricing Calculator, that compares our object storage prices with AWS S3.

            In the Around NET end of the show segment, we have Sofia Cardita, based in Lisbon and a clinical psychologist turn engineer from our Radar team. She will talk about our new URL scan tool.

            Check the blog posts:

            • Killnet and AnonymousSudan DDoS attack Australian university websites, and threaten more attacks — here’s what to do about it
            • Cloudflare’s commitment to the 2023 Summit for Democracy
            • Helping protect personal information in the cloud, all across the world
            • From IP packets to HTTP: the many faces of our Oxy framework
            • Upgrading one of the oldest components in Cloudflare’s software stack
            • 35 min
            • This Week in Net: Zero Trust speed, security and the quantum state of a TCP port

              Welcome to our weekly review of stories from our blog and other sources, covering a range of topics from product announcements, tools and features to disruptions on the Internet. João Tomé is joined by our CTO, John Graham-Cumming.

              In this week's program, we give some highlights from our Security Week that only officially ended on Monday, including the importance of having the fastest Zero Trust proxy. In a very different area, we also go over why the quantum state of a TCP port is the subject of a deep dive this week. There’s also news related to our developer's platform, Cloudflare Workers, from Node.js compatibility to the use of any language with Pages Functions via WebAssembly.

              At the end, we have in our new “Around NET” short segment where we go to the Netherlands. Bas Westerbaan from our Research Team talks about post quantum crypto (free, and forever).

              ​​For more, don’t miss the Security Week Hub (https://www.cloudflare.com/security-week) and our wrap up blog with all the announcements (https://blog.cloudflare.com/security-week-2023-wrap-up/).

              Other blog posts mentioned:

              • The quantum state of a TCP port
              • Cloudflare Access is the fastest Zero Trust proxy
              • Use the language of your choice with Pages Functions via WebAssembly
              • Node.js compatibility for Cloudflare Workers – starting with Async Context Tracking, EventEmitter, Buffer, assert, and util
              • Out now! Auto-renew TLS certificates with DCV Delegation
              • 31 min
              • This Week in Net: Security Week special edition

                Welcome to our weekly review of stories from our blog and other sources, covering a range of topics from product announcements, tools and features to disruptions on the Internet. João Tomé is joined by our CTO, John Graham-Cumming.

                In this week's program, we go over some of the announcements we’ve made during Cloudflare's Security Week. We had several tools that leverage machine learning and many improvements to our Zero Trust product, making it more accessible and enterprise-ready. We go over phishing and fraud protection, security management, and trends you should know about.

                At the end, we have in our new “Around NET” short segment, contributions from Michael Tremante (based in London — from the Applications Security team) and Mia Wang (based in New Jersey — from our Special Projects team and working on our Workers Launchpad Funding Program.

                For more, don’t miss the Security Week Hub.

                45 min
              • This Week in Net: From Rust to Python and a glimpse on what to expect from Security Week

                Welcome to our weekly review of stories from our blog and other elsewhere, covering a range of topics from product announcements, tools and features to disruptions on the Internet. João Tomé is joined by our CTO, John Graham-Cumming.

                In this week's program, we go over our recent blog posts related to two relevant programming languages, Rust and Python. The related posts are:

                • Oxy is Cloudflare's Rust-based next generation proxy framework
                • How we built an open-source SEO tool using Workers, D1, and Queues
                • How Rust and Wasm power Cloudflare's 1.1.1.1
                • Keeping the Cloudflare API 'all green' using Python-based testing
                • We also discuss how the new Zero Trust navigation is coming soon (and we need your feedback), how to build resiliency into systems with Cloudflare Workers, and why you should go over our White House’s National Cybersecurity Strategy related blog post.

                  Last but not least, we give you a teaser on what to expect of the upcoming Security Week (one of Cloudflare’s Innovation Weeks). And Andie Goodwin and Angela Huang share some insights about our blog post related to the International Women’s Day and give some suggestions.

                  Further reading

                  • Deploying firmware at Cloudflare-scale: updating thousands of servers in more than 285 cities
                  • Embrace equity on International Women’s Day (and every day)
                  • Accelerate building resiliency into systems with Cloudflare Workers
                  • The White House’s National Cybersecurity Strategy asks the private sector to step up to fight cyber attacks. Cloudflare is ready
                  • New Zero Trust navigation coming soon (and we need your feedback)
                  • How Cloudflare runs Prometheus at scale
                  • How we built an open-source SEO tool using Workers, D1, and Queues
                  • Cloudflare's network expansion in Indonesia
                  • 30 min

                  About This Week in NET

                  From the publisher's feed

                  This Week in NET is Cloudflare’s weekly roundup exploring the Internet’s past, present, and future. Hosted by João Tomé with expert guests, it shares insights that matter to developers, businesses, and Internet enthusiasts alike.