Systems, Network, and Administration Podcast.

About the show

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.

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  • 422: Multipath Musings

    February 7th, 2020  |  23 mins 37 secs
    3gpp, 5g, a cloud guru, apple, aslr, automation, blink, browser wars, buffer overflow, cacheout, chrome, chromium, cloud, crypto, cryptography, devops, edge, edgium, failover, firefox, intel, ios, jason donenfeld, jupiter broadcasting, let's encrypt, linux, linux 5.6, linux academy, lte, microsoft, mobile, monitoring, mptcp, multipath tcp, nagios, networking, open standards, poly1305, sgx, speculative execution, ssl, stack canary, stack smashing, sysadmin podcast, teams, techsnap, tls, tsx, ubuntu 20.04, virtualization, vpn, wireguard, world wide web, zombieload

    We take a look at a few exciting features coming to Linux kernel 5.6, including the first steps to multipath TCP.

  • 421: Firewall Fun

    January 24th, 2020  |  25 mins 9 secs
    2600, a cloud guru, apollo, arm, bsd, captain crunch whistle, certificate validation, crypt32.dll, cryptoapi spoofing, cryptography, crystal method, cve-2020-0601, devops, ecc, elliptic curve cryptography, eternalblue, firewall, firewall appliance, hacking, iptables, john draper, jupiter broadcasting, linux, linux academy, microsoft, mitm, moon, nasa, national security administration, netgate, netgear, networking, nmap, nsa, opnsense, patch tuesday, patching, pf, pfsense, phreaking, quindar, quindar tones, rdp, rdp client, rdp gateway, routing, security, security gateway, space, sysadmin podcast, techsnap, telephony, unix, vpn, vulnerability, windows, windows 10, windows update, x86

    We explore the latest round of Windows vulnerabilities and Jim shares his journey adding OPNsense to his firewall family.

  • 420: Choose Your Own Compiler

    January 10th, 2020  |  24 mins 10 secs
    4g, 5g, broadband, c, canonical, cell phones, clang, compilers, debian, devops, fr1, fr2, gcc, gnu, init system, jupiter broadcasting, kernel development, linux, linux kernel, llvm, lte, michael larabel, mmwave, mobile, netplan, networking, phoronix, south korea, systemd, systemd-networkd, systems programming, techsnap, telephony, ubuntu, unity, wireless

    Compiling the Linux kernel with Clang has never been easier, so we explore this alternative compiler and what it brings to the ecosystem.

  • 419: Nebulous Networking

    December 27th, 2019  |  33 mins 33 secs
    artificial intelligence, at, cloud, colab, cryptography, deoldify, devops, encryption, firewall, flat network, google colab, gpu, imagenet, jupiter broadcasting, jupyter notebook, lighthouse, machine learning, mesh network, mesh networking, mesh vpn, nat busting, nebula, networking, neural networks, noise protocol framework, overlay network, pachinko, plinko, ryan huber, security, security groups, slack, system administration, techsnap, udp, udp hole-punching, virtual network, vpn, wireguard

    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

    December 13th, 2019  |  34 mins 3 secs
    4g, 5g, 5g fr1, 5g fr2, amazon, arm, at&t, broadband, cellular, cellular modems, devops, eero, free software, freedom, iot, jupiter broadcasting, libre, librem 5, lte, mesh wifi, mobile, mobile cpu, mobile phones, networking, point-to-point, privacy, purism, qualcomm, security, smartphone, snapdragon 865, speed test, t-mobile, techsnap, wi-fi, wifi, wireless, wireless modems

    As the rollout of 5G finally arrives, we take some time to explain the fundamentals of the next generation of wireless technology.

  • 417: Machine Learning Magic

    November 29th, 2019  |  26 mins 27 secs
    ai, aiexpert, aimesh, amplifi, amplifi alien, artificial general intelligence, artificial intelligence, arvind narayanan, asus, ata, bitlocker, chip design, cpu, cryptography, dban, deep learning, deep learning boost, devops, drunkard's walk, encryption, ethernet, google, gpu, hard disk, hard drive, hardware encryption, home networking, i9-10980xe, ieee, inference, intel avx512, jeffrey dean, jupiter broadcasting, linear algebra, lora, luks, machine learning, matrix multiplication, mesh wifi, networking, neural network, npu, nvidia, ofdma, ofnp, on-off noise power communication, openvino, orthogonal frequency-division multiple access, resnet, router, secure erase, security, smallnetbuilder, solid state, ssd, storage, supercomputers, techsnap, tesla v100, tim higgins, tpu, training, ubiquiti, unifi, wifi, wifi 6, wireless

    We explore the rapid adoption of machine learning, its impact on computer architecture, and how to avoid AI snake oil.

  • 416: I.T. Phone Home

    November 15th, 2019  |  27 mins 56 secs
    archival, business, chromium, cloud key, cold storage, communication, devops, glass, jupiter broadcasting, linux, long term storage, microsoft, microsoft edge, microsoft ignite, open source, optical media, optical storage, parity, project silica, security camera, superman, techsnap, telemetry, the mote in god's eye, ubiquiti, unifi, unifi controller, video, wifi, zfs

    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

    November 1st, 2019  |  34 mins 29 secs
    4k random writes, benchmarks, crucial, dd, devops, disk benchmarking, disk cache, disk performance, fio, flash storage, flexible io tester, fsync, hard disk, hard disk drive, iops, jupiter broadcasting, mlc, nvme, phoronix test suite, queue depth, raid, rsyslogd, samsung evo, samsung pro, sandisk, slc, solid state disks, spinning rust, ssd, ssd cache, ssd controller, ssds, syslog, techsnap, test your pain points, throughput, tlc, trim, write endurance

    We share our simple approach to disk benchmarking and explain why you should always test your pain points.

  • 414: Rooting for ZFS

    October 18th, 2019  |  42 mins 27 secs
    19.10, 2g, 5.3, amazon sidewalk, backups, boot environments, btrfs, canonical, copy on write, data integrity, devops, eoan, freebsd, google wifi, jupiter broadcasting, lora, lorawan, low bandwidth, mesh wifi, nest wifi, rf chirp, sigfox, snapshots, spread spectrum, surefi, techsnap, tp-link, ubuntu, unifi, wifi, wireless, wireless networking, zfs, zsys

    We dive into Ubuntu 19.10's experimental ZFS installer and share our tips for making the most of ZFS on root. 

  • 413: The Coffee Shop Problem

    October 4th, 2019  |  32 mins 5 secs
    0-rtt,,, amd, amd ryzen, anonymity, canary, chrome, chrome canary, chromebook, chromebook support, cloudflare, cloudflare dns, cookies, cryptography, curl, devops, dns, dns-over-https, doh, duckduckgo, encryption, firefox, forwarding, google, google dns, google search, guardmi, http/3, https, incognito, ip, iptables, jupiter broadcasting, lenovo, lenovo chromebook, linux academy, man-in-the-middle, memory encryption, mitm, mmproxy, mozilla, network protocol, networking, privacy, proxy, public-key cryptography, quad-9, quantum computers, quantum computing, quantum supremacy, quic, quiche, region shifting, rust, ryzen pro, ryzen pro 3000, search engines, security updates, shor's algorithm, spdy, ssl, startmail, startpage, sysadmin podcast, tcp, tcp/ip, techsnap, tls, udp, vpn, warp, web proxy, windows, wireguard, wireguard vpn

    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.

  • 412: Too Good To Be True

    September 20th, 2019  |  34 mins 36 secs
    802.11ax, chromebooks, chromeos, cloudreadyos, cryptography, devops, ethernet, google, hvac, industrial iot, iot, jupiter broadcasting, low bandwidth, networking, neverware, qkd, quantum cryptography, quantum key distribution, rf chrip, security, security updates, spread spectrum, sure-fi, sysadmin podcast, techsnap, the wifi challenge, wifi, wifi 5, wifi 6, wireless, wpa3

    It's TechSNAP story time as we head out into the field with Jim and put Sure-Fi technology to the test.

  • 411: Mobile Security Mistakes

    September 6th, 2019  |  29 mins 38 secs
    amd, android, app security, apple, benchmarks, cpu load balancing, devops, epyc, exploit chain, exploit market, google, ios, ipc, iphone, jailbreak, jupiter broadcasting, libxpc, linux, malware, mobile, mobile apps, mobile security, numa, open source, privilege escalation, project zero, security, sysadmin podcast, techsnap, thunderbolt, usb, usb power delivery, usb-c, usb4, v4l2, video4linux, webkit, zeroday, zerodium

    We take a look at a few recent zero-day vulnerabilities for iOS and Android and find targeted attacks, bad assumptions, and changing markets.

  • 410: Epyc Encryption

    August 23rd, 2019  |  50 mins 7 secs
    amd, amd epyc, amd psp, amd rome, bluekeep, bluetooth, bruteforce, certificate lifespace, comet lake, cpu, cpu benchmarks, ctftool security, devops, encryption, entropy, ev certs, extended validation, https, ice lake, intel, intel me, jupiter broadcasting, knob, knob attack, memory encryption, rdp, security, sem, sev, sgx, ssl, ssl certifications, sysadmin podcast, techsnap, text services framework, tls, virtualization, vulnerabilities, windows, worms

    It's CPU release season and we get excited about AMD's new line of server chips. Plus our take on AMD's approach to memory encryption, and our struggle to make sense of Intel's Comet Lake line.

  • 409: Privacy Perspectives

    August 9th, 2019  |  39 mins 14 secs
    ad-blocking, adblock plus, advertising, amiunique, apple, bleee, bluetooth, bluetooth le, browser fingerprinting, canvas, chrome, devops, encryption, encryption debate, facebook, firefox, ghostery, google, incognito, ios, iphone, jupiter broadcasting, mozilla, openvpn, panopticlick, privacy, privacy badger, private browsing, security, sysadmin podcast, techsnap, ublock, ublock origin, vpn, webgl, whatsapp, wireguard

    We examine why it's so difficult to protect your privacy online and discuss browser fingerprinting, when to use a VPN, and the limits of private browsing.

  • 408: Apollo's ARC

    July 26th, 2019  |  35 mins 13 secs
    agc, ai, apollo, apollo anniversary, apollo guidance computer, arc, caching, chris siebenmann, cloud, core rope, dancing demon, devops, floating point, fpu, intel, kernel module, kvm, loihi, machine learning, magnetic core, margaret hamilton, memory, nasa, neural networks, neuromorphic computing, openzfs, page cache, pohoiki, punch cards, qcow, qcow2, qemu, retro computing, simd, snapshots, sysadmin, techsnap, text adventure, trs-80, vhd, virtualization, zfs, zfs on linux, zol

    We take a look at the amazing abilities of the Apollo Guidance Computer and Jim breaks down everything you need to know about the ZFS ARC.

  • 407: Old School Outages

    July 10th, 2019  |  42 mins 31 secs
    amd, benchmarks, bgp, bgp leak, cloudflare, cpu, deployment, devops, ecc, epyc, facebook, google, grafana, infosec, intel, internet, internet infrastructure, librenms, logging, logs, metrics, microsoft, monitoring, nagios, netdata, nrpe, observability, old school, opennms, outages, performance, prometheus, regex, riemann, rkpi, ryzen, server, server builds, sysadmin, techsnap, time series, verizon, xeon, zabbix

    Jim shares his Nagios tips and Wes chimes in with some modern monitoring tools as we chat monitoring in the wake of some high-profile outages.