netstack.fm

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A podcast about networking, Rust, and everything in between. Join us as we explore the stack: from protocols and packet flows to the people and projects building the modern internet — all through the lens of Rust. Featuring deep dives, crate spotlights, and expert interviews.

  1. FA 6 DIES

    Firezone and Zero-Trust Network Security with Thomas Eizinger

    episode 19 — Firezone and Zero-Trust Network Security with Thomas Eizinger. In this episode of Netstack.fm, Glen talks with Thomas Eizinger from Firezone about designing a zero trust enterprise VPN built on top of WireGuard. They break down how modern VPNs work in practice, covering virtual network adapters, split tunneling, DNS interception, policy based access, and secure packet routing using WireGuard, ICE, and TURN relays. The discussion highlights how Firezone differs from legacy VPNs by focusing on performance, reliability, and minimal user friction, while also touching on the role of Rust and Elixir in Firezone’s architecture and the long term importance of IPv6 adoption. Learn more: https://github.com/firezone/firezone — Firezone main repositoryhttps://github.com/firezone/firezone/tree/main/rust/relay/ebpf-turn-router — Firezone eBPF in kernel relay routerhttps://www.firezone.dev/kb/architecture/critical-sequences#detailed-connection-setup — Firezone Connection Setuphttps://www.wireguard.com/papers/wireguard.pdf — WireGuard whitepaperhttps://github.com/firezone/boringtun — Firezone fork of boringtun user space WireGuardhttps://www.rfc-editor.org/rfc/rfc8656 — TURN RFC 8656https://x.com/firezonehq — Firezone on Xhttps://x.com/oetzn — Thomas Eizinger on Xhttps://hachyderm.io/@wheezle — Thomas Eizinger on Mastodonhttps://github.com/thomaseizinger — Thomas Eizinger on GitHub Rama If you like this podcast you might also like our modular network framework in Rust: https://ramaproxy.org Chapters 00:00 Intro00:42 Introduction to Thomas Eizinger05:19 Firezone's Turn implementation11:00 Understanding VPNs and Firezone's Approach29:27 Legacy VPNs vs. Firezone: A New Era of Networking36:19 Firezone is opensource37:27 Zero-Trust VPNs40:28 What is WireGuard43:36 Firezone's Integration with WireGuard50:19 Handling Connection Failures58:00 Geolocation and Relay Selection01:04:45 Elixir Developer Experience (DX)01:10:19 IPv6 Adoption and Future Considerations01:15:03 Outro Netstack.FM More information: https://netstack.fm/#episode-19Join our Discord: https://discord.gg/29EetaSYCDReach out to us: hello@netstack.fm Music for this episode was composed by Dj Mailbox. Listen to his music at https://on.soundcloud.com/4MRyPSNj8FZoVGpytj

    1 h 16 min

  2. 16 DE DES.

    Curiosity, Quake, and Networking with Fabien Sanglard

    episode 18 — Curiosity, Quake, and Networking with Fabien Sanglard. Glen talks with Fabien Sanglard about curiosity driven engineering, from early computers and classic games like Doom and Quake to modern Android development and ADB. They discuss how networking evolved in games, why latency shaped multiplayer design, how Rust improves reliability in large systems, and why writing and diagrams are powerful tools for truly understanding complex technologies. Learn more: https://fabiensanglard.net/ — Fabien Sanglard’s Bloghttps://fabiensanglard.net/quake_chunnel/ — How quake.exe got its TCP/IP stack Rama If you like this podcast you might also like our modular network framework in Rust: https://ramaproxy.org Chapters 00:00 Intro01:19 Fabien's background07:02 Android Debug Bridge (ADB)11:05 Fabien's Blog16:45 mDNS and Blog Target Audience24:23 Quake TCP/IP32:37 Nostalgia with Pink Glasses37:58 Later Quake Versions39:58 Fabien's books41:53 The importance of Diagrams in documentation47:19 Lessons that can be learned from ADB51:58 Rust Iteration Speed59:22 Outro Netstack.FM More information: https://netstack.fm/#episode-18Join our Discord: https://discord.gg/29EetaSYCDReach out to us: hello@netstack.fm Music for this episode was composed by Dj Mailbox. Listen to his music at https://on.soundcloud.com/4MRyPSNj8FZoVGpytj

    1 h

  3. 9 DE DES.

    Early Web History and Interlisp with Larry Masinter

    episode 17 — Early Web History and Interlisp with Larry Masinter. We sit down with internet pioneer and longtime IETF contributor Larry Masinter to revisit the origins of many technologies developers use every day. From his early days at Xerox PARC to co-authoring foundational RFCs on HTTP, URIs, and more, Larry shares first-hand stories that connect the early web to the world we build in now. The conversation also explores his current passion project: reviving the Interlisp environment as a living historical system. Learn more: https://larrymasinter.net/ — Official website from Larry Masinterhttps://www.rfc-editor.org/rfc/rfc2616 — RFC 2616 – HTTP/1.1 Specificationhttps://www.rfc-editor.org/rfc/rfc3986 — RFC 3986 – URI Generic Syntaxhttps://www.rfc-editor.org/rfc/rfc2324 — RFC 2324 – Hypertext Coffee Pot Control Protocolhttps://www.rfc-editor.org/rfc/rfc2732 — RFC 2732 – Literal IPv6 Addresses in URLshttps://datatracker.ietf.org/doc/html/draft-masinter-dated-uri — Draft: the 'tdb' and 'duri' URI schemes, based on dated URIshttps://interlisp.org — The Interlisp Revival Project Rama If you like this podcast you might also like our modular network framework in Rust: https://ramaproxy.org Chapters 00:00 Intro00:34 Introduction to Larry Masinter05:32 The Intellectual Environment at Xerox PARC06:49 The Interlisp Project and Its Impact10:05 Transitioning to Document Servers and HTTP12:02 Resources, Gopher and the Early Web15:45 Why did HTTP succeed where Gopher faded away20:56 Larry's Involvement in Web Standards and Protocols25:11 Reviving Interlisp post-pandemic27:13 interlisp.org, 5 years later32:57 The Tradition of April 1st RFCs33:51 Invention of Hypertext Coffee Pot Control Protocol (1998)37:04 The Invention of HTCPCP40:55 Exploring URI Schemes47:58 Form-Based File Upload49:12 The Politics of Web Standards01:05:12 The Evolution of Web Protocols01:05:53 Developing in the Interlisp Environment01:14:03 Goals of the Interlisp Revival Project01:23:39 Collaborations and Future Aspirations01:25:09 Outro Netstack.FM More information: https://netstack.fm/#episode-17Join our Discord: https://discord.gg/29EetaSYCDReach out to us: hello@netstack.fm Music for this episode was composed by Dj Mailbox. Listen to his music at https://on.soundcloud.com/4MRyPSNj8FZoVGpytj

    1 h 26 min

  4. 2 DE DES.

    WebRTC and Sans IO with Martin Algesten

    episode 16 — WebRTC and Sans IO with Martin Algesten. We sit down with Rust developer Martin Algesten for a deep dive into WebRTC and the Sans IO approach to protocol design. Martin traces the surprising origins of WebRTC, explains why real time media over UDP is both powerful and painfully complex, and walks through how peer to peer connections work under the hood. The conversation then shifts to Sans IO design, why it matters for clean protocol implementations in Rust, and how Martin applies it in his own WebRTC stack, str0m. Learn more: https://github.com/algesten — Github profile of Martin Algestenhttps://github.com/algesten/str0m — A Sans I/O WebRTC implementation in Rusthttps://github.com/algesten/dimpl — DTLS 1.2 implementation (Sans‑IO, Sync)https://datatracker.ietf.org/doc/rfc8489/ — Session Traversal Utilities for NAT (STUN)https://datatracker.ietf.org/doc/rfc8656/ — Traversal Using Relays around NAT (TURN)https://www.w3.org/TR/webrtc/ — WebRTC: Real-Time Communication in Browsers Rama If you like this podcast you might also like our modular network framework in Rust: https://ramaproxy.org Chapters 00:00 Intro00:40 Get to know Martin Algensten06:16 A bit of WebRTC history09:38 WebRTC 10130:05 P2P and Stun36:00 WebRTC: stages and flow from start to finish45:43 How Martin got into WebRTC and started the str0m project52:36 What is Sans IO?01:06:36 Why DTLS is not Sans IO in Str0m, but Str0m is01:18:34 Outro Netstack.FM More information: https://netstack.fm/#episode-16Join our Discord: https://discord.gg/29EetaSYCDReach out to us: hello@netstack.fmMusic for this episode was composed by Dj Mailbox. Listen to his music at https://on.soundcloud.com/4MRyPSNj8FZoVGpytj

    1 h 20 min

  5. 25 DE NOV.

    Pingora with Edward and Noah from Cloudflare

    episode 15 — Pingora with Edward and Noah from Cloudflare.In Episode 15 of netstack.fm, Glen sits down with Edward and Noah from Cloudflare to unpack the design of Pingora, the Rust based proxy framework that now powers Cloudflare’s origin facing traffic. The discussion covers why Cloudflare moved away from NGINX, how Pingora differs from Oxy, and what it takes to operate a high performance global proxy at massive scale. Listeners will learn about connection reuse strategies, dynamic traffic handling, gRPC and protocol translation, custom HTTP implementations, TLS backend choices, and the practical trade offs of Rust, Tokio, and work stealing in real production systems. It is an episode full of deep technical insights into building and operating modern networking infrastructure. Learn more: https://blog.cloudflare.com/how-we-built-pingora-the-proxy-that-connects-cloudflare-to-the-internet/ — Pingora's introduction bloghttps://blog.cloudflare.com/pingora-open-source/ — Pingora launch blog post (Cloudflare)https://github.com/vicanso/pingap — pingap, built on top of pingorahttps://blog.cloudflare.com/road-to-grpc/ — Cloudflare gRPC and gRPC Web articlehttps://github.com/hyperium/h2 — Hyperium h2 cratehttps://github.com/cloudflare/quiche — Quiche (QUIC and HTTP3 implementation)https://blog.cloudflare.com/technical-breakdown-http2-rapid-reset-ddos-attack/ — Cloudflare Rapid Reset HTTP2 attack analysishttps://csrc.nist.gov/pubs/fips/140-3/final — NIST FIPS 140-3 publicationhttps://blog.cloudflare.com/introducing-oxy/ — Introducing Oxy (Cloudflare)https://blog.cloudflare.com/oxy-extensibility/ — Oxy's extensions via genericshttps://blog.cloudflare.com/20-percent-internet-upgrade/ — Oxidizing other CDN components for performancehttps://github.com/cloudflare/foundations — Cloudflare's foundations crate Rama If you like this podcast you might also like our modular network framework in Rust: https://ramaproxy.org Chapters 00:00 Intro00:37 A bit of background on the episode and our guests03:18 The Evolution of Proxy Frameworks: Oxy vs. Pingora14:59 The Philosophy Behind Pingora's Design20:53 Understanding Pingora's Bare Bones Structure27:50 Metrics and Observability in Pingora39:19 Caching Strategies and Backend Structures42:56 Usage of OnceCell45:39 TLS Implementations and Their Importance50:51 Dynamic Traffic Management and gRPC Support01:02:10 Optimizing Connection Reuse with Pingora01:07:10 The Importance of Layer 7 Processing01:11:16 The Shift from Static to Dynamic Web Traffic01:18:48 Performance Improvements with Rust and Tokio01:26:00 Memory Management and Allocation Strategies01:37:59 Outro Netstack.FM More information: https://netstack.fm/#episode-15Join our Discord: https://discord.gg/29EetaSYCDReach out to us: hello@netstack.fm Music for this episode was composed by Dj Mailbox. Listen to his music at https://on.soundcloud.com/4MRyPSNj8FZoVGpytj

    1 h 39 min

  6. 18 DE NOV.

    Roto And Cascade with Terts and Arya from NLnet Labs

    Episode 14 – Roto And Cascade with Terts and Arya from NLnet Labs. In this episode we have a conversation with Terts and Arya from NLnet Labs. Together we explore their paths into systems programming, the mission of NLnet Labs, and the critical internet infrastructure the organization maintains. The discussion spans DNSSEC, large scale DNS operations, Rotonda, and the Roto scripting language, with deep dives into performance engineering, zero copy design, and building resilient open source networking software. It is a technical episode that highlights the people and ideas behind essential internet protocols. Learn more: https://www.nlnetlabs.nl/ — NLnet Labs websitehttps://github.com/NLnetLabs/cascade — A friendly DNSSEC signing solutionhttps://indico.dns-oarc.net/event/55/contributions/1186 — slides of conference talk introducing Cascadehttps://github.com/NLnetLabs/rotonda — Modular, programmable BGP Enginehttps://github.com/NLnetLabs/roto — strongly-typed, compiled embedded scripting language for Rusthttps://www.youtube.com/watch?v=7xJEFPlfy7Y — EuroRust 2025 talk by Terts on Rotohttps://docs.rs/domain/latest/domain/new/base/wire/index.html — domain's zerocopy modulehttps://bal-e.org/blog/ — Blog from Aryahttps://2026.rustweek.org/ — RustWeek 2026 (with open CFP until EOY 2025) Rama If you like this podcast you might also like our modular network framework in Rust: https://ramaproxy.org Chapters 00:00 Intro01:14 Backgrounds of Terts and Arya10:37 Overview of NLnet Labs17:43 Understanding DNSSEC25:29 The Role of Cascade in DNSSEC41:06 Understanding Roto and Rotonda45:55 The Evolution of Roto's Scripting Language49:34 Integration and Efficiency in Roto52:05 Real-World Applications of Roto01:00:36 The Importance of Data Structures in Performance01:06:34 Optimization Strategies for High Performance01:17:14 Zero-Copy Techniques in DNS Handling01:26:06 Outro Netstack.FM More information: https://netstack.fm/#episode-14Join our Discord: https://discord.gg/29EetaSYCDReach out to us: hello@netstack.fm Music for this episode was composed by Dj Mailbox. Listen to his music at https://on.soundcloud.com/4MRyPSNj8FZoVGpytj

    1 h 27 min

  7. 11 DE NOV.

    Inside Ping Proxies with Joseph Dye

    Episode 13 – Inside Ping Proxies with Joseph Dye. In this episode of Netstack.fm, Glen from Plabayo talks with Joseph Dye (Joe), founding engineer at Ping Proxies, about building large-scale proxy infrastructure in Rust. Joe shares how he went from art student to programmer, joining Ping when it was a tiny startup running on Python and Squid. He explains how they rebuilt everything in Rust, creating performant HTTP and SOCKS5 proxies and managing massive IP networks for web scraping. The conversation covers the evolution of their stack, challenges with HTTP versions, TCP/IP fingerprinting, user-space networking with DPDK, and the adoption of MASQUE and HTTP/3. Joe also reflects on Rust’s safety benefits, being the only Rust engineer at Ping, and how the company stays competitive through technical innovation rather than size. Learn more: https://github.com/smoltcp-rs/smoltcp — A Rust-based user-space TCP/IP stackhttps://dpdk.org — The Data Plane Development Kit for high-performance packet processing and kernel bypasshttps://github.com/cloudflare/quiche — Cloudflare’s QUIC and HTTP/3 implementation, mentioned for MASQUE support w/ tokio supporthttps://github.com/tokio-rs/tokio — The asynchronous runtime used by Ping Proxies for concurrencyhttps://github.com/hyperium/h2 — Rust’s HTTP/2 library, referenced as part of Ping Proxies’ stackhttps://github.com/hyperium/h3 — Rust’s HTTP/3 library, used for advanced proxy tunnelinghttps://datatracker.ietf.org/doc/rfc9298 — Proxying UDP in HTTP (MASQUE)https://ipxo.com — Marketplace for leasing IP addresses, discussed in how Ping acquires IP rangeshttps://pawns.app/sdk/ — Example of SDK-based residential proxy provider referenced in the episodeRama If you like this podcast you might also like our modular network framework in Rust: https://ramaproxy.org Chapters 00:00 Intro00:41 Introduction to Proxies and Joe's background03:42 Understanding Pink Proxies and Their Offerings06:52 The Technical Journey: From Squid to Rust09:47 Proxy Types: Data Center vs. Residential12:42 Building a Proxy Infrastructure15:44 Challenges with HTTP Protocols18:39 The Importance of Customization in Proxy Development21:38 Team Dynamics and Future Growth29:32 Transitioning to Rust Development30:59 Understanding HTTP Protocols32:40 Exploring HTTP/2 and HTTP/334:05 The Future of Proxying with Mask36:14 Evaluating New Technologies for Proxies37:51 Developing for End User Devices39:49 Challenges in Network Stack Development41:15 Proxying Non-HTTP Traffic42:51 TCP/IP Fingerprinting Explained47:57 The Importance of TCP/IP Fingerprinting53:28 Performance Considerations in User Space TCP58:22 Competing in the Proxy Market01:00:05 Cancellation Safety in Rust Concurrency01:03:53 OutroNetstack.FM More information: https://netstack.fm/#episode-13Join our Discord: https://discord.gg/29EetaSYCDReach out to us: hello@netstack.fmMusic for this episode was composed by Dj Mailbox. Listen to his music at https://on.soundcloud.com/4MRyPSNj8FZoVGpytj.

    1 h 5 min

  8. 4 DE NOV.

    Oxide Networking with Ryan Goodfellow

    Episode 12 – Oxide Networking with Ryan Goodfellow. A conversation with Ryan Goodfellow about Rust networking at Oxide. We will explore the Oxide computer stack with a focus on network, including their fully integrated cloud computer, programmable networking with P4 and Dendrite, the Maghemite routing stack, and OPTE — a Rust-based packet engine running inside the kernel. Ryan also shares how his background in large-scale network testbeds led him to help design Oxide’s rack-scale system and its modern approach to routing, observability, and hardware–software co-design. Learn more: https://oxide.computer/ — Oxide Computer Companyhttps://github.com/oxidecomputer/opte — OPTE (Oxide Packet Transformation Engine)https://github.com/oxidecomputer/maghemite — Maghemite (Routing Stack)https://github.com/oxidecomputer/dendrite — Dendrite (P4 Switch Control)https://github.com/oxidecomputer/hubris — Hubris (Rust OS for Microcontrollers)https://github.com/oxidecomputer/falcon — Falcon (Virtual Rack Testbed)https://rfd.shared.oxide.computer/rfd/0347 — RFD 347 (Delay-Driven Multipath Routing (DDM))https://groups.csail.mit.edu/ana/Publications/PubPDFs/Tussle2002.pdf — The Tussle in Cyberspace (Paper)https://named-data.net/project/ndn/ — Named Data Networking Projecthttps://www.sigcomm.org/ — ACM SIGCOMM Conferencehttps://www.usenix.org/conference/nsdi26 — USENIX NSDI Symposiumhttps://oxide-and-friends.transistor.fm/episodes/the-frontend-of-the-computer — Oxide & Friends (Dropshot Episode) Rama If you like this podcast you might also like our modular network framework in Rust: https://ramaproxy.org Chapters 00:00 Intro00:44 Meet Ryan Goodfellow06:23 Building Large-Scale Test Beds07:46 The future of the internet10:54 Overview of Oxide's Rack Scale Computer19:36 Exploring BGP and Routing Protocols26:02 The X4C Compiler and Its Origins39:43 Programming for Tofino and Observability45:10 Life of packets of an HTTP Web (Oxide Rack) server01:01:58 Exploring Maghemite: The Routing Stack01:12:45 Future Directions: Rust-Based Operating Systems01:19:28 Testing Strategies and the Falcon Framework01:27:25 Outro Netstack.FM More information: https://netstack.fm/#episode-12Join our Discord: https://discord.gg/29EetaSYCDReach out to us: hello@netstack.fm Music for this episode was composed by Dj Mailbox. Listen to his music at https://on.soundcloud.com/4MRyPSNj8FZoVGpytj.

    1 h 28 min
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Informació

A podcast about networking, Rust, and everything in between. Join us as we explore the stack: from protocols and packet flows to the people and projects building the modern internet — all through the lens of Rust. Featuring deep dives, crate spotlights, and expert interviews.

Fitxa tècnica

  • Creació
    Plabayo BV
  • Anys en actiu
    2 k
  • Episodis
    19
  • Qualificació
    Apte
  • Copyright
    © 2025 Plabayo BV
  • Lloc web del programa
    netstack.fm
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