TechSNAP

TechSNAP

Systems, Network, and Administration Podcast. Every two weeks TechSNAP covers the stories that impact those of us in the tech industry, and all of us that follow it. Every episode we dedicate a portion of the show to answer audience questions, discuss best practices, and solving your problems.

Episodes

430: All Good Things

May 28, 2020 • 52 mins
It's a storage showdown as Jim and Wes bust some performance myths about RAID and ZFS. Plus our favorite features from Fedora 32, and why Wes loves DNF.
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429: Curious About Caddy

May 14, 2020 • 30 mins
Jim and Wes take the latest release of the Caddy web server for a spin, investigate Intel's Comet Lake desktop CPUs, and explore the fight over 5G between the US Military and the FCC.
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428: RAID Reality Check

April 30, 2020 • 36 mins
We dive deep into the world of RAID, and discuss how to choose the right topology to optimize performance and resilience. Plus Cloudflare steps up its campaign to secure BGP, and why you might want to trade in cron for systemd timers.
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427: Gigahertz Games

April 16, 2020 • 51 mins
Jim finally gets his hands on an AMD Ryzen 9 laptop, some great news about Wi-Fi 6e, and our take on FreeBSD on the desktop. Plus Intel's surprisingly overclockable laptop CPU, why you shouldn't freak out about 5G, and the incredible creativity of the Demoscene.
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426: Storage Stories

April 2, 2020 • 31 mins
We take a look at Cloudflare's impressive Linux disk encryption speed-ups, and explore how zoned storage tools like dm-zoned and zonefs might help mitigate the downsides of Shingled Magnetic Recording. Plus we celebrate WireGuard's inclusion in the Linux 5.6 kernel, and fight some exFAT FUD.
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425: Ryzen Gets Real

March 19, 2020 • 32 mins
We take a look at AMD's upcoming line of Ryzen 4000 mobile CPUs, and share our first impressions of Ubuntu 20.04's approach to ZFS on root. Plus Let's Encrypt's certificate validation mix-up, Intel's questionable new power supply design, and more.
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424: AMD Inside

March 6, 2020 • 28 mins
Cloudflare recently embarked on an epic quest to choose a CPU for its next-generation server build, so we explore the importance of requests per watt, the benefits of full memory encryption, and why AMD won. Plus Mozilla's rollout of DNS over HTTPS has begun, a big milestone for Let's Encrypt, and more.
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423: Hopeful for HAMR

February 21, 2020 • 29 mins
We explore the potential of heat-assisted magnetic recording and get excited about a possibly persistent L2ARC. Plus Jim's journeys with Clear Linux, and why Ubuntu 18.04.4 is a maintenance release worth talking about.
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422: Multipath Musings

February 7, 2020 • 23 mins
We take a look at a few exciting features coming to Linux kernel 5.6, including the first steps to multipath TCP. Plus the latest Intel speculative execution vulnerability, and Microsoft's troubled history with certificate renewal.
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421: Firewall Fun

January 24, 2020 • 25 mins
We explore the latest round of Windows vulnerabilities and Jim shares his journey adding OPNsense to his firewall family. Plus a look back at Apollo-era audio that's still relevant today with the surprising story of the Quindar tones.
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420: Choose Your Own Compiler

January 10, 2020 • 24 mins
Compiling the Linux kernel with Clang has never been easier, so we explore this alternative compiler and what it brings to the ecosystem. Plus Debian's continued init system debate, and our frustrations over 5G reporting.
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419: Nebulous Networking

December 27, 2019 • 33 mins
From classifying cats to colorizing old photos we share our top tips and tools for starting your machine learning journey. Plus, learn why Nebula is our favorite new VPN technology, and how it can help simplify and secure your network.
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418: 5G Fundamentals

December 13, 2019 • 34 mins
As the rollout of 5G finally arrives, we take some time to explain the fundamentals of the next generation of wireless technology. Plus the surprising performance of eero's mesh Wi-Fi, some great news for WireGuard, and an update on the Librem 5.
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417: Machine Learning Magic

November 29, 2019 • 26 mins
We explore the rapid adoption of machine learning, its impact on computer architecture, and how to avoid AI snake oil. Plus so-so SSD security, and a new wireless protocol that works best where the Wi-Fi sucks.
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416: I.T. Phone Home

November 15, 2019 • 27 mins
Ubiquiti's troublesome new telemetry, Jim's take on the modern Microsoft, and why Project Silica just might be the future of long term storage.
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415: It's All About IOPS

October 31, 2019 • 34 mins
We share our simple approach to disk benchmarking and explain why you should always test your pain points. Plus the basics of solid state disks and how to evaluate which model is right for you.
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414: Rooting for ZFS

October 18, 2019 • 42 mins
We dive into Ubuntu 19.10's experimental ZFS installer and share our tips for making the most of ZFS on root.  Plus why you may want to skip Nest Wifi, and our latest explorations of long range wireless protocols.
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413: The Coffee Shop Problem

October 3, 2019 • 32 mins
We peer into the future with a quick look at quantum supremacy, debate the latest DNS over HTTPS drama, and jump through the hoops of HTTP/3. Plus when to use WARP, the secrets of Startpage, and the latest Ryzen release.
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412: Too Good To Be True

September 19, 2019 • 34 mins
It's TechSNAP story time as we head out into the field with Jim and put Sure-Fi technology to the test. Plus an update on Wifi 6, an enlightening Chromebook bug, and some not-quite-quantum key distribution.
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411: Mobile Security Mistakes

September 5, 2019 • 29 mins
We take a look at a few recent zero-day vulnerabilities for iOS and Android and find targeted attacks, bad assumptions, and changing markets. Plus what to expect from USB4 and an upcoming Linux scheduler speed-up for AMD's Epyc CPUs.
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