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TechSNAP

Jupiter Broadcasting

10
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14
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TechSNAP

TechSNAP

Jupiter Broadcasting

10
Followers
14
Plays
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About Us

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.

Latest Episodes

430: All Good Things

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.Links:What's new in Fedora 32 Workstation Fedora 32 ChangeSet Linux distro review: Fedora Workstation 32 TechSNAP 428: RAID Reality Check ZFS versus RAID: Eight Ironwolf disks, two filesystems, one winner Understanding RAID: How performance scales from one disk to eight Find Jim on 2.5 AdminsFind Wes on LINUX UnpluggedTechSNAP 1: First episode of TechSNAP (in 2011!) TechSNAP 300: End of the Allan and Chris era (2017) TechSNAP 301: Enter Dan and Wes TechSNAP 347: A Farewell to Dan TechSNAP 348: Chris is back! TechSNAP 389: Jim's first time as a guest TechSNAP 390: Jim's second guest appearance TechSNAP 393: Chris says goodbye TechSNAP 395: Jim joins the show

52 minMAY 29
Comments
430: All Good Things

429: Curious About Caddy

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.Links:Caddy offers TLS, HTTPS, and more in one dependency-free Go Web server Caddy 2 Caddy v2 Improvements [slightly out of date]Proposal: Permanently change all proprietary licensing to open source · Issue #2786 · caddyserver/caddy Revert "Implement Caddy-Sponsors HTTP response header" by lol768 · Pull Request #1866 · caddyserver/caddy Intel’s 10th generation desktop CPUs have arrived—still on 14nm Intel Comet Lake 10th Gen CPU release date, specs, price, and performance 10th Gen Intel Core Desktop Processors US military is furious at FCC over 5G plan that could interfere with GPS The Pentagon's fight to kill Ligado's 5G network FCC Approves Ligado L-Band Application to Facilitate 5G & IoT

30 minMAY 15
Comments
429: Curious About Caddy

428: RAID Reality Check

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.Links:AMD Claims World’s Fastest Per-Core Performance with New EPYC Rome 7Fx2 CPUs AMD EPYC 7F52 Linux Performance - AMD 7FX2 CPUs Further Increasing The Fight Against Intel Xeon Review Understanding RAID: How performance scales from one disk to eight New Cloudflare tool can tell you if your ISP has deployed BGP fixes Is BGP safe yet? RPKI - The required cryptographic upgrade to BGP routing Why I Prefer systemd Timers Over Cron – Thomas Stringer systemd/Timers - ArchWiki systemd.time (Time format docs) systemd.timer (Unit docs)

35 minMAY 1
Comments
428: RAID Reality Check

427: Gigahertz Games

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.Links:Asus ROG Zephyrus G14—Ryzen 7nm mobile is here, and it’s awesomeLinux on Laptops: ASUS Zephyrus G14 with Ryzen 9 4900HSIntel’s 10th-generation H-series laptop CPUs break 5GHz | Ars TechnicaWi-Fi 6E becomes official—the FCC will vote on rules this monthCelebs share rumors linking 5G to coronavirus, nutjobs burn cell towersNot-actually Linux distro review: FreeBSD 12.1-RELEASENot actually Linux distro review deux: GhostBSDMOD (file format) - WikipediaAT&T.MOD (YouTube)DJ Moses Rising—Ice Cream Trance (YouTube)Farbrausch—The Product (64K Intro, 2000)Farbrausch—Poem to a Horse (64K Intro, 2002)Finland accepts the Demoscene on its national UNESCO list of intangible cultural heritage of humanity

51 minAPR 17
Comments
427: Gigahertz Games

426: Storage Stories

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.Links:WireGuard VPN makes it to 1.0.0—and into the next Linux kernel — It's a good day for WireGuard users—DKMS builds will soon be behind us. Linux 5.6 Is The Most Exciting Kernel In Years With So Many New Featuresfs: New zonefs file system — zonefs is a very simple file system exposing each zone of a zoned block device as a file. This is intended to simplify implementation of application zoned block device raw access support by allowing switching to the well known POSIX file API rather than relying on direct block device file ioctls and read/write.Ama-ZNS! Zonefs File-System Will Land with Linux 5.6What is Zoned Storage and the Zoned Storage Initiative? — Zoned Storage is a new paradigm in...

31 minAPR 3
Comments
426: Storage Stories

425: Ryzen Gets Real

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.Links:Let's Encrypt changes course on certificate revocation Revoking certain certificates on March 4 Let's Encrypt: Incomplete revocation for CAA rechecking bugPass authzModel by value, not reference The Complete Guide to CAA RecordsDNS Certification Authority Authorization AMD's 7nm Ryzen 4000 laptop processors are finally here How Intel is changing the future of power supplies with its ATX12VO spec Single Rail Power Supply ATX12VO Design GuideFreeNAS and TrueNAS are UnifyingFreeNAS and TrueNAS are Unifying [Video Announcement] Ubuntu 20.04's zsys adds ZFS snapshots to package management ubuntu/zsys: zsys daemon and client for zfs systems

32 minMAR 20
Comments
425: Ryzen Gets Real

424: AMD Inside

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.Links:Firefox continues push to bring DNS over HTTPS by default for US users - The Mozilla Blog The Facts: Mozilla’s DNS over HTTPs (DoH) Security/DOH-resolver-policy - MozillaWiki HTTPS for all: Let’s Encrypt reaches one billion certificates issued | Ars Technica Let’s Encrypt Has Issued a Billion Certificates - Let’s Encrypt - Free SSL/TLS Certificates Let’s Encrypt: A History - The Morning Paper Apple drops a bomb on long-life HTTPS certificates: Safari to snub new security certs valid for more than 13 months • The Register Ballot SC22: Reduce Certificate LifetimesGoogle Chrome’s fear of Microsoft Edge is revealing its bad side Microsoft shares a roadmap for the new Microsof...

28 minMAR 6
Comments
424: AMD Inside

423: Hopeful for HAMR

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.Links:Ubuntu 18.04.4 LTS: here's what's new — It's not as shiny and exciting as entirely new versions, of course, but it does pack in some worthwhile security and bugfix upgrades, as well as support for more and newer hardware.18.04.4 - Ubuntu WikiMobaXterm — Enhanced terminal for Windows with X11 server, tabbed SSH client, network tools and much more.Linux distro review: Intel’s own Clear Linux OS — There's not much question that Clear Linux is your best bet if you want to turn in the best possible benchmark numbers. The question not addressed here is, what's it like to run Clear Linux as a daily driver? We were curious, so we took it for a spin.Clear Linux* Project — Clear Linux OS is an open source, rolling release Linux distribution optimized for performance a...

29 minFEB 22
Comments
423: Hopeful for HAMR

422: Multipath Musings

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.Links:Oregon company makes top bid for Microsoft check - CNET Microsoft’s failures to renew: Teams, Hotmail, and Hotmail.co.uk | Ars Technica Microsoft Teams goes down after Microsoft forgot to renew a certificate - The Verge Browser review: Microsoft’s new “Edgium” Chromium-based Edge | Ars Technica Linus Torvalds pulled WireGuard VPN into the 5.6 kernel source tree | Ars Technica Ubuntu 20.04 LTS Adds WireGuard Support - Phoronix Multipath TCP Support Is Working Its Upstream - First Bits Landing With Linux 5.6 - Phoronix MultiPath TCP - Linux Kernel implementation Upstreaming multipath TCP LPC2019 - Multipath TCP Upstreaming - YouTube LPC2019 - Multipath TCP Upstreaming - Slides LPC2019 - Multipath TCP Upstreaming - Paper Using MultiPath TCP to enhan...

23 minFEB 7
Comments
422: Multipath Musings

421: Firewall Fun

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.Links:Critical Vulnerabilities in Microsoft Windows Operating Systems Win10 Crypto Vulnerability: Cheating in Elliptic Curve Billiards 2 NSA discovers a serious flaw in Windows 10 Exploiting CVE-2020-0601 CVE-2020-0601 POC NSA Cybersecurity Advisory on CryptoAPI Flaw Why can’t I get to the internet on my new OPNsense install?! - Jim's Blog OPNsense: a true open source security platform and more There's An Actual Name And Reason For Those Beeps You Hear In Recordings Of Astronauts In Space Quindar Tones Cap'n Crunch Whistle and the Secrets of the Little Blue Box

25 minJAN 24
Comments
421: Firewall Fun

Latest Episodes

430: All Good Things

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.Links:What's new in Fedora 32 Workstation Fedora 32 ChangeSet Linux distro review: Fedora Workstation 32 TechSNAP 428: RAID Reality Check ZFS versus RAID: Eight Ironwolf disks, two filesystems, one winner Understanding RAID: How performance scales from one disk to eight Find Jim on 2.5 AdminsFind Wes on LINUX UnpluggedTechSNAP 1: First episode of TechSNAP (in 2011!) TechSNAP 300: End of the Allan and Chris era (2017) TechSNAP 301: Enter Dan and Wes TechSNAP 347: A Farewell to Dan TechSNAP 348: Chris is back! TechSNAP 389: Jim's first time as a guest TechSNAP 390: Jim's second guest appearance TechSNAP 393: Chris says goodbye TechSNAP 395: Jim joins the show

52 minMAY 29
Comments
430: All Good Things

429: Curious About Caddy

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.Links:Caddy offers TLS, HTTPS, and more in one dependency-free Go Web server Caddy 2 Caddy v2 Improvements [slightly out of date]Proposal: Permanently change all proprietary licensing to open source · Issue #2786 · caddyserver/caddy Revert "Implement Caddy-Sponsors HTTP response header" by lol768 · Pull Request #1866 · caddyserver/caddy Intel’s 10th generation desktop CPUs have arrived—still on 14nm Intel Comet Lake 10th Gen CPU release date, specs, price, and performance 10th Gen Intel Core Desktop Processors US military is furious at FCC over 5G plan that could interfere with GPS The Pentagon's fight to kill Ligado's 5G network FCC Approves Ligado L-Band Application to Facilitate 5G & IoT

30 minMAY 15
Comments
429: Curious About Caddy

428: RAID Reality Check

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.Links:AMD Claims World’s Fastest Per-Core Performance with New EPYC Rome 7Fx2 CPUs AMD EPYC 7F52 Linux Performance - AMD 7FX2 CPUs Further Increasing The Fight Against Intel Xeon Review Understanding RAID: How performance scales from one disk to eight New Cloudflare tool can tell you if your ISP has deployed BGP fixes Is BGP safe yet? RPKI - The required cryptographic upgrade to BGP routing Why I Prefer systemd Timers Over Cron – Thomas Stringer systemd/Timers - ArchWiki systemd.time (Time format docs) systemd.timer (Unit docs)

35 minMAY 1
Comments
428: RAID Reality Check

427: Gigahertz Games

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.Links:Asus ROG Zephyrus G14—Ryzen 7nm mobile is here, and it’s awesomeLinux on Laptops: ASUS Zephyrus G14 with Ryzen 9 4900HSIntel’s 10th-generation H-series laptop CPUs break 5GHz | Ars TechnicaWi-Fi 6E becomes official—the FCC will vote on rules this monthCelebs share rumors linking 5G to coronavirus, nutjobs burn cell towersNot-actually Linux distro review: FreeBSD 12.1-RELEASENot actually Linux distro review deux: GhostBSDMOD (file format) - WikipediaAT&T.MOD (YouTube)DJ Moses Rising—Ice Cream Trance (YouTube)Farbrausch—The Product (64K Intro, 2000)Farbrausch—Poem to a Horse (64K Intro, 2002)Finland accepts the Demoscene on its national UNESCO list of intangible cultural heritage of humanity

51 minAPR 17
Comments
427: Gigahertz Games

426: Storage Stories

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.Links:WireGuard VPN makes it to 1.0.0—and into the next Linux kernel — It's a good day for WireGuard users—DKMS builds will soon be behind us. Linux 5.6 Is The Most Exciting Kernel In Years With So Many New Featuresfs: New zonefs file system — zonefs is a very simple file system exposing each zone of a zoned block device as a file. This is intended to simplify implementation of application zoned block device raw access support by allowing switching to the well known POSIX file API rather than relying on direct block device file ioctls and read/write.Ama-ZNS! Zonefs File-System Will Land with Linux 5.6What is Zoned Storage and the Zoned Storage Initiative? — Zoned Storage is a new paradigm in...

31 minAPR 3
Comments
426: Storage Stories

425: Ryzen Gets Real

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.Links:Let's Encrypt changes course on certificate revocation Revoking certain certificates on March 4 Let's Encrypt: Incomplete revocation for CAA rechecking bugPass authzModel by value, not reference The Complete Guide to CAA RecordsDNS Certification Authority Authorization AMD's 7nm Ryzen 4000 laptop processors are finally here How Intel is changing the future of power supplies with its ATX12VO spec Single Rail Power Supply ATX12VO Design GuideFreeNAS and TrueNAS are UnifyingFreeNAS and TrueNAS are Unifying [Video Announcement] Ubuntu 20.04's zsys adds ZFS snapshots to package management ubuntu/zsys: zsys daemon and client for zfs systems

32 minMAR 20
Comments
425: Ryzen Gets Real

424: AMD Inside

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.Links:Firefox continues push to bring DNS over HTTPS by default for US users - The Mozilla Blog The Facts: Mozilla’s DNS over HTTPs (DoH) Security/DOH-resolver-policy - MozillaWiki HTTPS for all: Let’s Encrypt reaches one billion certificates issued | Ars Technica Let’s Encrypt Has Issued a Billion Certificates - Let’s Encrypt - Free SSL/TLS Certificates Let’s Encrypt: A History - The Morning Paper Apple drops a bomb on long-life HTTPS certificates: Safari to snub new security certs valid for more than 13 months • The Register Ballot SC22: Reduce Certificate LifetimesGoogle Chrome’s fear of Microsoft Edge is revealing its bad side Microsoft shares a roadmap for the new Microsof...

28 minMAR 6
Comments
424: AMD Inside

423: Hopeful for HAMR

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.Links:Ubuntu 18.04.4 LTS: here's what's new — It's not as shiny and exciting as entirely new versions, of course, but it does pack in some worthwhile security and bugfix upgrades, as well as support for more and newer hardware.18.04.4 - Ubuntu WikiMobaXterm — Enhanced terminal for Windows with X11 server, tabbed SSH client, network tools and much more.Linux distro review: Intel’s own Clear Linux OS — There's not much question that Clear Linux is your best bet if you want to turn in the best possible benchmark numbers. The question not addressed here is, what's it like to run Clear Linux as a daily driver? We were curious, so we took it for a spin.Clear Linux* Project — Clear Linux OS is an open source, rolling release Linux distribution optimized for performance a...

29 minFEB 22
Comments
423: Hopeful for HAMR

422: Multipath Musings

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.Links:Oregon company makes top bid for Microsoft check - CNET Microsoft’s failures to renew: Teams, Hotmail, and Hotmail.co.uk | Ars Technica Microsoft Teams goes down after Microsoft forgot to renew a certificate - The Verge Browser review: Microsoft’s new “Edgium” Chromium-based Edge | Ars Technica Linus Torvalds pulled WireGuard VPN into the 5.6 kernel source tree | Ars Technica Ubuntu 20.04 LTS Adds WireGuard Support - Phoronix Multipath TCP Support Is Working Its Upstream - First Bits Landing With Linux 5.6 - Phoronix MultiPath TCP - Linux Kernel implementation Upstreaming multipath TCP LPC2019 - Multipath TCP Upstreaming - YouTube LPC2019 - Multipath TCP Upstreaming - Slides LPC2019 - Multipath TCP Upstreaming - Paper Using MultiPath TCP to enhan...

23 minFEB 7
Comments
422: Multipath Musings

421: Firewall Fun

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.Links:Critical Vulnerabilities in Microsoft Windows Operating Systems Win10 Crypto Vulnerability: Cheating in Elliptic Curve Billiards 2 NSA discovers a serious flaw in Windows 10 Exploiting CVE-2020-0601 CVE-2020-0601 POC NSA Cybersecurity Advisory on CryptoAPI Flaw Why can’t I get to the internet on my new OPNsense install?! - Jim's Blog OPNsense: a true open source security platform and more There's An Actual Name And Reason For Those Beeps You Hear In Recordings Of Astronauts In Space Quindar Tones Cap'n Crunch Whistle and the Secrets of the Little Blue Box

25 minJAN 24
Comments
421: Firewall Fun
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