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TechSNAP

Author: Jupiter Broadcasting

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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.
240 Episodes
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430: All Good Things

430: All Good Things

2020-05-2952:092

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.
429: Curious About Caddy

429: Curious About Caddy

2020-05-1530:451

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.
428: RAID Reality Check

428: RAID Reality Check

2020-05-0136:001

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.
427: Gigahertz Games

427: Gigahertz Games

2020-04-1751:29

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.
426: Storage Stories

426: Storage Stories

2020-04-0331:17

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.
425: Ryzen Gets Real

425: Ryzen Gets Real

2020-03-2032:53

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.
424: AMD Inside

424: AMD Inside

2020-03-0628:19

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.
423: Hopeful for HAMR

423: Hopeful for HAMR

2020-02-2229:36

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.
422: Multipath Musings

422: Multipath Musings

2020-02-0723:37

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.
421: Firewall Fun

421: Firewall Fun

2020-01-2425:092

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.
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.
419: Nebulous Networking

419: Nebulous Networking

2019-12-2733:331

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.
418: 5G Fundamentals

418: 5G Fundamentals

2019-12-1334:18

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.
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.
416: I.T. Phone Home

416: I.T. Phone Home

2019-11-1527:56

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.
415: It's All About IOPS

415: It's All About IOPS

2019-11-0134:292

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.
414: Rooting for ZFS

414: Rooting for ZFS

2019-10-1842:272

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.
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.
412: Too Good To Be True

412: Too Good To Be True

2019-09-2034:361

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.
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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Comments (9)

terrywang

Very good & simply explanation on how nebula works and it's key differences with conventional VPN (OpenVPN, WireGuard). Love Nebula ;-) https://castbox.fm/vd/214661890

May 3rd
Reply

elrey741

25:12: really interesting perspective as to why Microsoft is bringing Edge to Linux 🙂

Nov 16th
Reply

elrey741

26:00: would love to hear about how you implement your product sanoid (https://github.com/jimsalterjrs/sanoid) I currently use zfs-auto-snapshot (https://packages.ubuntu.com/eoan/zfs-auto-snapshot)

Oct 19th
Reply

elrey741

18:00: good to know about tplink out performing TP-link UAP-Pros

Oct 19th
Reply

elrey741

16:05: unifi controller information

Oct 19th
Reply

elrey741

the awesome thing about duckduckgo is that it can be like a search engine for search engines! they have a feature called "bangs" that let you hop from one site to another just by adding an ! and a letter (i.e. g for google (i.e. !g ='s a google search)) here is how you can use start page: https://duckduckgo.com/bang?q=start I use it all the time to hop from google, to amazon, to ebay, to newegg when I know that is the site I want to use. all I have to do is open a new tab in firefox and then use a "!" (bang).

Oct 7th
Reply

elrey741

12:16: a practical example of an http/2 implementation is a Command and Control framework: https://github.com/Ne0nd0g/merlin

Oct 7th
Reply

elrey741

07:15: warp is what firefox's private network uses: https://private-network.firefox.com/

Oct 7th
Reply

Wayne F

Another great episode!

Jan 12th
Reply
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