TechSNAP
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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.
TechSNAP
4y ago
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 Admins
Find Wes on LINUX Unplugged
TechSNAP 1: First episode of TechSNAP (in 2011!)
TechSNAP 300: End of the Allan and Chris era (2017)
TechSNAP 301: Enter Da ..read more
TechSNAP
4y ago
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Caddy v2 Improvements [slightly out of date]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 Come ..read more
TechSNAP
4y ago
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 crypto ..read more
TechSNAP
4y ago
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 awesome
Linux on Laptops: ASUS Zephyrus G14 with Ryzen 9 4900HS
Intel’s 10th-generation H-series laptop CPUs break 5GHz | Ars Technica
Wi-Fi 6E becomes official—the FCC will vote on rules this month
Celebs share rumors linking 5G to coronavirus, nutjobs burn cell towers
N ..read more
TechSNAP
4y ago
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 Features
fs: New zonefs file system — zonefs is a very simple file system exposing each zone ..read more
TechSNAP
4y ago
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 bug
Pass authzModel by value, not reference
The Complete Guide to CAA Records
DNS Certification Authority Authorization
AMD's 7nm Ryzen 4000 laptop processors are finally here ..read more
TechSNAP
4y ago
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 ..read more
TechSNAP
4y ago
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 Wiki
MobaXterm — Enhanced terminal for Windows with X11 server, tabbed SSH client, network tools and much more.
Linux distro revie ..read more
TechSNAP
4y ago
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 kerne ..read more
TechSNAP
4y ago
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
OPNse ..read more