netstack.fm

Plabayo BV
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  • TECNOLOGÍA

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. HACE 1 D

    Email protocols with Mauro De Gennaro from Stalwart Labs

    episode 26: Email protocols with Mauro De Gennaro from Stalwart Labs. This episode features an in depth conversation with Mauro De Gennaro of Stalwart Labs that demystifies how email actually works in practice, from SMTP delivery and DNS based routing to IMAP, JMAP, spam filtering, encryption, and authentication standards like DKIM, SPF, and DMARC, all through the lens of building and operating a modern mail and collaboration server in Rust; Mauro shares his long personal journey from early BBS systems to founding Stalwart, explains why email protocols have evolved the way they have, how self hosting email can be practical and secure today, and why open standards, automation, and memory safety are key to reclaiming control over critical communication infrastructure. Learn more: https://stalw.art — Websitehttps://github.com/stalwartlabs — GitHub orghttps://github.com/stalwartlabs/stalwart — GitHub repositoryhttps://stalw.art/docs — Documentation (including installation instructions)https://stalw.art/slides — Product presentation slideshttps://fosdem.org/2026/schedule/event/FP8EFX-scaling-email/ — FOSDEM 2026 talkhttps://www.ietf.org/meeting/125/ — IETF 125 Shenzen Rama If you like this podcast you might also like our modular network framework in Rust: https://ramaproxy.org Chapters 00:00 Intro00:50 Get to know Mauro De Gennaro08:44 Origins of Stalwart12:24 The Evolution of Stalwart and Its Features14:59 Life of a mail sent to a Stalwart server18:14 Understanding Email Transmission and Protocols22:54 Combination of Email with Calendar and Contacts26:37 Email File Attachments31:56 Stalwart and ACME39:44 Email Address validation44:47 Exploring the Sieve Protocol for Mail Filtering47:54 Email RFCs and standarization54:39 Experiences at FOSDEM and the Future of Email56:50 The Case for Self-Hosting Email Solutions01:00:27 Backup Strategies for Self-Hosted Email Servers01:04:35 Ensuring Redundancy and Reliability in Email Hosting01:12:38 Comparing Email Protocols: SMTP, POP3, and IMAP01:16:25 Shared Inboxes and Automated Email01:24:26 Understanding Email Authentication Standards01:27:54 ARC, SPF, DKIM and DMARC01:33:24 Integrating AI with Email Systems01:36:03 Self-Hosting Considerations01:39:31 Getting Started with Stalwart01:41:54 Outro Netstack.FM More information: https://netstack.fm/#episode-26Join 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 43 min

  2. 3 FEB

    FOSDEM 2026 special

    episode 25: FOSDEM 2026 special. Recorded live from FOSDEM 2026. Learn more: https://fosdem.org/2026/ — FOSDEM 2026 websitehttps://fosdem.org/2026/schedule/event/CKANPK-programmable_networking_with_rama/ — FOSDEM 2026 rama talkhttps://www.nlnetlabs.nl/ — NLnet Labs websitehttps://github.com/NLnetLabs/roto — roto github repohttps://fosdem.org/2026/schedule/event/DS7LFX-rust-roto-calling-jit-compiled-scripts/ — FOSDEM 2026 roto talkhttps://ratatui.rs/ — ratatui websitehttps://orhun.dev/ — website from Orhun Rama If you like this podcast you might also like our modular network framework in Rust: https://ramaproxy.org Chapters 00:00 Intro00:47 Intro interview Terts (NLNetLabs)02:00 Roto04:06 What's next for Roto06:56 Tert's reflections on FOSDEM09:49 Networking and Community Building11:28 Rust Week (NL)12:32 Closing Thoughts and Community Encouragement13:45 Intro Interview Orhun (Ratatui)21:13 Reflections on FOSDEM 202622:47 Preview of next week's episode23:26 Outro Netstack.FM More information: https://netstack.fm/#episode-25Join 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

    24 min

  3. 27 ENE

    WebAssembly and Rust in Practice, A Conversation with Alex Crichton

    episode 24: WebAssembly and Rust in Practice, A Conversation with Alex Crichton. In this episode we sit down with Alex Crichton to talk about WebAssembly and Rust in practice. We discuss how Wasm grew beyond the browser into a serious runtime for servers and plugins, and why Rust fits so well in this space. We also explore WASI, the component model, and lessons from building Wasmtime, covering performance, security, and what it takes to run Wasm in production. Learn more: https://github.com/alexcrichton — Alex Crichtton on GitHubhttps://webassembly.org/ — WebAssembly overview and introductionhttps://wasi.dev/ — WASI introduction and goalshttps://component-model.bytecodealliance.org/ — WebAssembly component model documentationhttps://bytecodealliance.org/ — Bytecode Alliance home pagehttps://wasmtime.dev/ — Wasmtime runtime home pagehttps://docs.wasmtime.dev/ — Wasmtime documentationhttps://docs.rs/wasmtime/latest/wasmtime/ — Wasmtime Rust API documentationhttps://github.com/bytecodealliance/wasmtime — Wasmtime source codehttps://github.com/bytecodealliance/wasm-tools — wasm tools used throughout the Wasmtime ecosystemhttps://github.com/bytecodealliance/wit-bindgen/ — wit bindgen tooling for the component modelhttps://webassembly.github.io/spec/ — WebAssembly specification renderinghttps://github.com/WebAssembly/WASI — WASI specification repositoryhttps://github.com/WebAssembly/proposals/ — Active WebAssembly proposalshttps://bytecodealliance.org/articles/ — Bytecode Alliance blog and technical articles 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 Alex Crichton and His Journey04:14 Understanding WebAssembly: Basics and Benefits07:35 Challenges of WebAssembly and DOM Access16:29 Exploring WASI: The WebAssembly System Interface31:11 The Relationship Between WebAssembly and WASI34:43 Understanding WebAssembly Instructions37:09 The Role of Compilers in WebAssembly40:07 Exploring Roto and WebAssembly Integration42:19 Garbage Collection in WebAssembly44:17 Dynamic Libraries and Code Sharing in WebAssembly45:49 Core WebAssembly and Its Layers48:39 The Component Model's Evolution51:25 String Handling in WebAssembly54:26 Simplifying WebAssembly for Developers55:30 Specifications and Documentation in WebAssembly57:31 Asynchronous Support in the Component Model01:01:29 Exploring WASI P3 and Async Support01:10:36 More about the Component Model01:22:39 The Role of the Bytecode Alliance01:26:57 Akamai's Interest in WebAssembly01:31:29 Exploring WebAssembly Use Cases01:37:27 Future of WasmTime Development01:40:24 Understanding WasmTime's Architecture01:44:34 Getting Started with WasmTime01:51:19 Security and Testing in WasmTime01:56:11 Outro Netstack.FM More information: https://netstack.fm/#episode-24Join 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 57 min

  4. 20 ENE

    Protocol Shorts: HTTP as an Application Bus

    episode 23 — Protocol Shorts: HTTP as an Application Bus. This is the debut of our "Protocol Shorts" series: fast-paced, high-density conversations with one or more expert guests centered around a common theme. In the "HTTP as an application bus" episode, we’re breaking down the tunneling renaissance—specifically the clever 'protocol-within-a-protocol' hacks that are changing the game. From hijacking H2 CONNECT to run full-duplex WebSockets, to the subtle ways we’re now nesting modern traffic inside older transports, we’re looking at how the network layer is being rewritten from the inside out. Learn more: https://grpc.io — Official gRPC website.https://grpc.io/docs/platforms/web/ — Overview of gRPC Webhttps://github.com/hyperium/tonic — Tonic, the most popular gRPC implementation in Rusthttps://developers.google.com/protocol-buffers — Protocol Buffers documentation explaining the IDL, encoding, and ecosystem behind gRPC.https://datatracker.ietf.org/doc/html/rfc7540 — HTTP/2 specificationhttps://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API — WebSockets API overview, including framing, duplex communication, and browser support.https://datatracker.ietf.org/doc/html/rfc6455 — WebSocket protocol specification describing frames, ping pong, and connection upgrade. Rama If you like this podcast you might also like our modular network framework in Rust: https://ramaproxy.org Chapters 00:00 Welcome Lucio, 1st guest of this protocol shorts episode01:52 Understanding HTTP/2 and Metadata Frames05:32 Limitations of gRPC Web and Client Streaming08:28 Encoding Formats: Protobuf vs JSON11:18 gRPC in Browser Contexts14:16 The Future of gRPC with HTTP/3 and QUIC18:03 Introduction to Brecht, 2nd guest of this episode20:00 Understanding HTTP/2: Features and Use Cases26:34 Custom Protocols Over HTTP/231:52 Exploring WebSockets: Basics and Applications37:05 WebSockets: Advanced Use Cases and Multiplexing41:40 Outro Netstack.FM More information: https://netstack.fm/#episode-23 Join our Discord: https://discord.gg/29EetaSYCD Reach 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

    43 min

  5. 13 ENE

    Rust URL with Simon Sapin

    episode 22 — Rust URL with Simon Sapin. In this episode of Netstack.fm, Simon Sapin discusses building the rust-url crate based on the WHATWG URL specification. He also highlights that IDNA support was integrated to handle internationalized domain names, which includes critical security checks to prevent phishing from "confusable" characters that look identical to users. Learn more: https://docs.rs/url — rust-url is an implementation of the URL Standard for the Rust programming languagehttps://docs.rs/idna — IDNA (Internationalizing Domain Names in Applications) and Punycodehttps://docs.rs/idna_adapter — unicode back end for the idna cratehttps://docs.rs/form_urlencoded — Parser and serializer for the application/x-www-form-urlencoded syntax, as used by HTML formshttps://docs.rs/percent-encoding — Percent encoding and decodinghttps://servo.org/ — official servo websitehttps://url.spec.whatwg.org/ — WHATWG URL Specificatonhttps://datatracker.ietf.org/doc/html/rfc5890 — Internationalized Domain Names for Applications (IDNA) (RFC)https://exyr.org/ — official website of Simon Sapin Rama If you like this podcast you might also like our modular network framework in Rust: https://ramaproxy.org Chapters 00:00 Intro00:50 Get to know Simon Sapin05:35 Origin of rust-url07:19 Implementing Specifications in Rust10:05 Understanding IDNA and Its Importance11:17 Origins of form-url / percent encoding crates12:36 The Role of Percent Encoding in URLs13:21 IDNA Crate Origin15:41 Challenges with IDNA and Usability30:13 unpacking the rust-url crate39:25 Understanding URL Specifications and Compatibility45:10 Url Crate Parser52:41 Surprising Insights into URL Implementation01:01:41 Final words01:14:07 Outro Netstack.FM More information: https://netstack.fm/#episode-22Join 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

  6. 6 ENE

    GraphQL and Rust with Tom Houlé

    episode 21 — GraphQL and Rust with Tom Houlé. In this episode of Netstack.fm, Glen and Tom Houlé discuss GraphQL's transition from a high-hype mobile data solution at Facebook to a mature enterprise technology. They explore technical challenges like the N+1 problem and persisted queries, as well as the rise of GraphQL Federation for unifying microservices in Rust-based gateways. Tom also highlights GraphQL’s future potential as a self-documenting interface for LLMs and its healthy, community-driven development. Learn more: https://www.tomhoule.com — Personal website of Tom Houléhttps://graphql.org/learn/ — Learn GraphQLhttps://www.jovidecroock.com/blog/graphql-myths/ — GraphQL Myths (about trusted documents — Jovi De Croock)https://benjie.dev/graphql/trusted-documents — Another great blog post about trusted documents, by Benjiehttps://www.apollographql.com/docs/graphos/schema-design/federated-schemas/federation — Introduction to GraphQL Federation (Apollo)https://github.com/graphql/composite-schemas-spec/ — The Composite Schemas specification, the vendor neutral next iteration of federationhttps://www.youtube.com/watch?v=E_RETbpPogw — Transforming Capital One’s Data Marketplace with Embedded Governance and a Product Mindset (enterprise adoption)https://relay.dev/docs/ — Relay docsRust Crates:https://github.com/async-graphql/async-graphql — async-graphql, the server frameworkhttps://github.com/graphql-rust/graphql-client/ — graphql-clienthttps://github.com/obmarg/cynic — cynichttps://www.youtube.com/@GraphQLFoundation — @GraphQLFoundation on YouTubehttps://www.youtube.com/@graphqltv — @GraphQL TV on YouTubehttps://grafbase.com/blog/seamless-grpc-subgraphs-with-extensions-and-composite-schemas — Seamless gRPC subgraphs with extensions and composite schemas Rama If you like this podcast you might also like our modular network framework in Rust: https://ramaproxy.org Chapters 00:00 Intro00:39 Meet Tom Houlé03:24 Origins of GraphQL10:05 The Shift to Persistent Queries in GraphQL18:09 GraphQL's Role in Frontend and Backend Development21:11 Challenges and Criticisms of GraphQL24:07 Optimizing GraphQL for Performance35:06 Schema first vs Code first40:44 Optimizing GraphQL Server Query Implementations44:39 GraphQL Federation: A Unified Approach51:08 Authentication in GraphQL: Challenges and Solutions01:05:23 The Future of GraphQL: Trends and Innovations01:16:03 Outro Netstack.FM More information: https://netstack.fm/#episode-21Join 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 17 min

  7. 30/12/2025

    Netstack.FM New Year Special, 2025 Wrap-Up

    episode 20 — Netstack.FM New Year Special, 2025 Wrap-Up. This New Year special reflects on the first nineteen episodes of netstack.fm, highlighting key lessons about networking, Rust, open source, and the people behind the protocols and systems that power the internet. It also looks at the evolution of the Rama framework and sets the stage for continued learning, collaboration, and new conversations in the year ahead. Learn more: https://github.com/plabayo/rama — rama repositoryhttps://github.com/plabayo/rama/discussions/782 — rama-0.3.0-alpha.4 releasehttps://ramaproxy.org/ — rama official websitehttps://ikorason.dev/posts/from-frontend-to-low-level-networking-my-journey-to-contributing-to-open-source — irfan's blog article Chapters 00:00 Intro00:54 Introduction and Year In Review03:28 Insights from Guests and the 2025 episodes22:21 Rama Testimonials27:28 Rama in 202631:07 Closing Message32:07 Outro Netstack.FM More information: https://netstack.fm/#episode-20Join 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

    33 min

  8. 23/12/2025

    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
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Información

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.

Ficha técnica

  • Creado por
    Plabayo BV
  • Años en activo
    2025 - 2026
  • Episodios
    26
  • Clasificación
    Apto
  • Derechos de autor
    © 2025 Plabayo BV
  • Sitio web del podcast
    netstack.fm
  • Proveedor

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