dns

A DEFCON 21 talk by Robert Stucke on DNS errors caused by single-bit flips, which lead to requests for misspelled domains. It shows real-world data on bitsquatting.

Artem Dinaburg's DEF CON 19 talk on bit-squatting, where DRAM bit flips cause DNS requests to go to domains one bit off from the intended one. It shows how hardware faults can be exploited for hijacking without any software exploit.

Artem Dinaburg's DEF CON 19 talk on bit-squatting, where flipped bits in DRAM cause devices to contact domains that differ by one bit from legitimate ones. He shows how registering such domains can hijack traffic without exploiting any software bug.

Highlights of the June 2010 ICANN DNSSEC root Key Signing Ceremony, showing the procedures used to generate and protect the root zone signing key.

A Rocky Mountain IPv6 Taskforce talk in which T-Mobile's Stephan Lagerholm explains how the carrier went IPv6-only using DNS64 and 464XLAT, with a live Android demo and best practices.

A seven-minute Google I/O 2014 talk by Simon Newton on how developers can make use of Google's global network. It describes the network's footprint and some of the services running on it.

Stephan Lagerholm of T-Mobile explains at NANOG how T-Mobile turned off IPv4 for over 10 million handsets using DNS64 and related technologies. He shares advice on finding and handling broken applications.

Tom7 (suckerpinch) builds and evaluates a series of absurd hard drives, including storage made from ping packets across the internet. The video accompanies his paper and mixes deep technical hacking with comedic storytelling.

Tom Scott writes a more honest VPN ad, with the sponsor's name redacted, and explains why the typical claims in VPN advertising are misleading. He notes the sponsor was not happy about it.

Van Jacobson's 2006 Google Tech Talk argues that networking should be rethought around named data rather than host-to-host conversations. He contrasts the circuit and datagram views of the internet and sketches content-centric networking as a replacement for the location-centric TCP/IP model.

John Oliver's 13-minute Last Week Tonight segment explains the 2014 net neutrality fight over cable companies creating unequal internet speeds. It uses comedy to make a dull regulatory topic engaging and tells viewers how to comment to the FCC.

Tom Scott explains for Computerphile how Unicode and UTF-8 grew out of messy older character encodings to become the web's standard. It covers why the design works and how it handles worldwide text.

A 2018 GDC talk by NetherRealm's Michael Stallone on the engine changes, optimizations and tooling needed to roll back and re-simulate up to 8 frames in 16 ms in Mortal Kombat and Injustice 2. It is a deep dive into deterministic rollback netcode.

Van Jacobson's 2006 Google Tech Talk on rethinking networking around named content instead of host-to-host conversations. He recounts packet-networking history and lays out the content-centric networking idea that later became NDN.

Real Engineering explains why SpaceX is building Starlink, including the economics of satellite internet. It covers the latency advantage of light in vacuum over fiber for long-distance links.

Eric Brandwine's AWS re:Invent 2015 session on how Amazon VPC networking works. It covers the problems the design solved, why traditional approaches do not scale, and the mechanisms used for customer isolation and VPC endpoints.

A lightning-style conference talk by Ricardo Signes about the horrors of email: its protocols, formats and decades of accumulated quirks. It is delivered with a humorous horror theme to show why handling email correctly is harder than it looks.

Ricardo Signes' YAPC::Asia Tokyo 2011 talk on the legends and horrors of email: how messy the SMTP and email standards are in practice. The first few minutes are Perl-specific, but the rest applies to anyone handling email.

Moxie Marlinspike's Black Hat talk presenting sslstrip, which defeats SSL in practice by intercepting the http-to-https redirect.

Mark Handley of UCL looks at how SpaceX's November 2018 revisions to the Starlink constellation affect network behavior. The video visualizes the orbits and routing and estimates latencies, building on his earlier video and research paper.

Van Jacobson's 2006 Google Tech Talk argues for rethinking networking around named data rather than host-to-host connections. He gives the history and the unsolved problems of the current internet architecture.

Kyle Drake of Neocities explains the bandwidth pricing pitfalls of the big cloud providers. He describes how to run high-volume, bandwidth-heavy infrastructure far more cheaply, including through co-location.

A DEF CON 21 talk by Karl Koscher and Eric Butler on how SIM cards work, including Java Card applets, the SIM toolkit and the OS running on the card. It shows how much control the network and the card have independent of the phone.

Dan Tentler's DEF CON 20 talk on odd things he found on the internet through Shodan, such as stoplights, power systems and other non-computer devices exposed online. It highlights how many devices need no credentials.

Susan Crawford talks at Harvard's Berkman Klein Center about her book Captive Audience. She argues that deregulation and consolidation left a few telecom companies in control of American internet access, so people pay too much for slow service.

Jared Mauch tells how he got fed up with poor internet options in rural Michigan and built his own fiber network to his town. The talk was given at NLNOG Live in September 2020.

A short visualization from HotNets researchers of routing and latency over SpaceX's proposed Starlink constellation, based on its FCC filings. It shows orbital shells, link topology and how inter-satellite routes could beat terrestrial fiber on long distances.

A documentary on how Cornwall became a hub for the world's communications, from the first transatlantic radio signal to modern undersea fibre cables. It describes how cable landing stations and the systems are put together.

Mark Handley of UCL explains, with simulation visualizations, how early Starlink satellites without inter-satellite links could still give low-latency wide-area communication by hopping via ground relays. He shows it can beat fibre on many long paths.

John Ousterhout's Netdev 0x16 keynote arguing that nearly every aspect of TCP is wrong for the datacenter, from connections and streams to reliable delivery and congestion control. He presents the case for a replacement protocol.

Troy Hunt argues that even static, non-secret websites need HTTPS, demonstrating attacks such as injected content and China's Great Cannon. It accompanies his blog post of the same name.

Part 4 of the BBS: The Documentary series, covering FidoNet, the amateur network that linked dial-up bulletin board systems together to relay messages and files worldwide.

A two-hour NANOG tutorial by Richard Steenbergen aimed at network engineers, covering optical networking technologies. This is the updated 2017 edition of a recurring talk.

A 43-minute skeptical critique arguing that Starlink fails to live up to its promises, covering satellite lifespan, costs, bandwidth and viability. The creator later added an update about FCC grant requirements.

Netflix engineer Drew Gallatin's EuroBSDcon 2022 talk quantifies the older FreeBSD optimizations that let Netflix serve web traffic at 800Gb/s, including TSO, LRO, VM page cache zones, asynchronous sendfile and unmapped mbufs.

Cory Benfield's PyCon 2016 talk on building protocol libraries that can be reused widely, using the Python Hyper HTTP project as the example. He argues for separating protocol parsing from I/O.

Juan Benet gives an overview and demo of the go-ipfs alpha. It shows the peer-to-peer content-addressed protocol in action, including streaming video from a home computer.

John Oliver's Last Week Tonight segment on net neutrality, explaining the stakes of the FCC's push to roll back the rules and urging viewers to file comments. It is a comedic but substantive explainer.

Full recording of Elon Musk's January 2015 presentation and Q&A at the SpaceX Seattle office announcement. He lays out plans for a satellite constellation to provide low-latency global internet, tied to funding Mars ambitions. Pauses between questions have been edited out.

A NANOG 64 panel with speakers from Comcast, APNIC, T-Mobile and Facebook on deploying IPv6-only networks, including performance data showing IPv6 outperforming NAT-ed IPv4.