Hacker Public Radio

Introduction Hosts: MrX Dave Morriss We recorded this on Monday September 12th 2022. We have a list of talking points each time and never get through them! Topics discussed Places visited: Lake District, England Loch Lomond, Scotland Stockbridge, Edinburgh Water of Leith, Edinburgh Death of Queen Elizabeth Died September 8th 2022 at Balmoral Castle, Scotland, aged 96 State funeral 2022-09-19 Navigation by phone: Dave’s phone battery out of charge on the outskirts of Liverpool on the way to OggCamp. MrX’s old Garmin GPS used weird routes when travelling Dave once met a lost driver going down Donkey Lane1 to the pedestrian railway crossing due to bad GPS directions Domestic stuff: Dave’s house has been painted. It’s covered in harling (aka rough-cast or pebble-dash in England) which has very sharp stones embedded in it, and this paint covers these sharp stones. Plumbing issues: stopping a dripping tap, replacing the washer, or with modern taps the module. Advisability of calling in a plumber! COVID-19, and related: The virus has not gone, even though there are many who pretend that it has. MrX and MrsX visited St Bees for a wedding with a Cèilidh and MrX caught COVID there, though it wasn’t serious. MrsX did not catch it! Immunology is hard to understand! Some cold-like illnesses may be caused by other corona viruses and may help protect against SARS-CoV-2. Dave has an Immunology book, but hasn’t read it yet! See the links for details. MrX mentioned Richard J Murphy in the context of being realistic about COVID-19 and continuing to take precautions. Reluctance to go shopping. Dave makes a weekly trip, wearing a mask. MrX uses Click and Collect. Dave has lost weight so some of his clothes are too big. MrX has trouble finding smaller sized clothes when shopping. Old technology: MrX recently found a box in his wardrobe with six Psion 3c Organisers in it, in various states of disrepair. From these a functioning organiser was made, which is in regular use. MrX used to have a Psion Series 3a but the hinge failed. Dave had a Psion Series 5mx for a time, as did MrsX. Dave’s failed either because of a screen fault or a failure of the ribbon cable connecting to the screen. The Series 3c, and the later 3mx, have an Easter Egg available through a particular key sequence. This is a rendition of the anthem “Jerusalem”, and is included at the end of this episode (and is responsible for the show title).

ReiserFS – The file system of the future Intro: Welcome to HPR; What I do; How I got in to computing; How I got in to Slackware and discovered ReiserFS A history of ReiserFS: Previous episode; Brief recap; A brief history; Lessons learned and experiences gained; Some tools to use Outro: Thanks ReiserFS From Wikipedia, the free encyclopedia ReiserFS is a general-purpose, journaling file system initially designed and implemented by a team at Namesys led by Hans Reiser and licensed under GPLv2. Introduced in version 2.4.1 of the Linux kernel, it was the first journaling file system to be included in the standard kernel. ReiserFS was the default file system in Novell's SUSE Linux Enterprise until Novell decided to move to ext3 on October 12, 2006, for future releases. Namesys considered ReiserFS version 3.6 which introduced a new on-disk format allowing bigger filesizes, now occasionally referred to as Reiser3, as stable and feature-complete and, with the exception of security updates and critical bug fixes, ceased development on it to concentrate on its successor, Reiser4. Namesys went out of business in 2008 after Reiser's conviction for murder. The product is now maintained as open source by volunteers. The reiserfsprogs 3.6.27 were released on 25 July 2017. ReiserFS is currently supported on Linux without quota support. It has been discussed for removal from the Linux kernel since early 2022 due to a lack of maintenance upstream, and technical issues inherent to the filesystem, such as the fact it suffers from the year 2038 problem; it was deprecated in Linux 5.18, with removal planned for 2025.

Batch files are an important topic to mastering DOS, and in this episode we begin exploring them. Batch files in DOS are similar to BASH scripts in Unix/Linux in that they let you run multiple commands from one file. Links: https://www.ahuka.com/dos-lessons-for-self-study-purposes/dos-lesson-15-introduction-to-batch-files/

GitHub repo where you can find system-monitoring-center: https://github.com/hakandundar34coding/system-monitoring-center

Everything You Always Wanted to Know About PEX Part 05– PEX and the Single Installer – My PEX installation experience part 2 Pulling PEX Much like pulling thick wire My method Used fish tape to pull mason's line Tied mason's line to PEX about 4 inches from end. Taped above & below with electrical tape Then tied line again closer to the end of PEX. Wrapped again with electrical tape Pull extra Unroll and let it lay straight for 24 hours if "curve memory" is a problem Can be challenging and require an individual installer to go back and forth between the feed point and the pull point. Supporting PEX 1" and smaller PEX must be supported horizontally every 32 inches Vertically, it must be supported at every floor and midway between floors (every 4-6 feet) https://www.pexuniverse.com/providing-proper-support-long-runs-pex-tubing Can be challenging to hold in place until secured Zip ties are your friend! Using a manifold Determine your needs Number of hot and cold outputs Valve type Handled Wrench/key Find a location with Easy access Fairly central to avoid long delays for hot water Limited light exposure Build or buy? Costs Appearance Materials Securing manifold in place Anchor securely Block wall with anchors To wood for spanning wall studs (I don't know why I kept saying "Joist" during the recording) Do not anchor to drywall Insulate from wall if needed Connecting to the main line What to replace and what to use Size matters Plan to include manifold if needed Connecting to water heater Where/how to connect Pipe Unions? Protect from heat Shut-off valve Expansion tank Silicon tape or pipe dope Connecting to endpoints What to keep and what to replace Transition connectors SharkBite Solder Thread Glue Exterior hose taps Reuse or replace? Frost free / anti-siphon Anchor securely Help is better! Turning it on! If using a manifold turn on one section at a time, from the bottom up Open sink valves Ease it on a little at a time Then increase flow Turn off sink tap (Slowly) to let pressure build Keep watching for leaks Coordinate with a partner and communicate (cell phone?) Afterwards Cover any PEX exposed to light Watch for leaks Repair holes Run water daily to flush out bad taste Inspection?

https://www.enterprisestorageforum.com/hardware/types-of-computer-memory/

A beginner introduction to web scraping with Python.

table td.shrink { white-space:nowrap } New hosts There were no new hosts this month. Last Month's Shows Id Day Date Title Host 3608 Wed 2022-06-01 Battling with English - part 5 Dave Morriss 3609 Thu 2022-06-02 Linux Inlaws S01E57: Operating System Level Virtualisation and Martin's Faith monochromec 3610 Fri 2022-06-03 DOS Wildcards; File Attributes Ahuka 3611 Mon 2022-06-06 HPR Community News for May 2022 HPR Volunteers 3612 Tue 2022-06-07 Who is Evil Steve? Part 2 Lurking Prion 3613 Wed 2022-06-08 Man buys cheap Adirondack chair dnt 3614 Thu 2022-06-09 Everything You Always Wanted to Know About PEX Part 02- The Joy of PEX - What is it and how is it us Trey 3615 Fri 2022-06-10 I am a troll and I'm trolling HPR, trolling HPR, trolling HPR. Ken Fallon 3616 Mon 2022-06-13 Filling free Slots from the Reserve Queue Dave Morriss

This begins our series about our RV trip by looking at the planning process. We give a suggestion for a nice online course that is not too expensive, and offer some tips on using Google Maps in planning your trip. Links: https://courses.saadigital.com/p/how-to-plan-your-epic-rv-adventure/ http://www.visitnasa.com/nasa-visitor-centers https://www.palain.com/travel/planning-an-rv-trip/

In this episode, Martin and Chris interview Eric Rescorla, the CTO of Firefox at Mozilla. After discussing the weather situation in the Kingdom formerly known as the UK, our two aging heros go right into browsers, programming languages, the Mozilla ecosystem and internet history and future alike. This episode again is not for the faint-hearted as none of the gory details are spared: We learn about Chris' t-shirt situation (and how you can kidnap apparel), why Google is so sucessful, data privacy and Internet monetization. Never mind rendering engines. Plus: more Rust marketing (Rebecca Rumbul: Take note :-). Links: Firefox: https://www.mozilla.org/en-US/firefox/browsers Mozilla Foundation: https://foundation.mozilla.org Mozilla Corporation: https://www.mozilla.org Gecko: https://developer.mozilla.org/en-US/docs/Glossary/Gecko Blink: https://www.chromium.org/blink Servo: https://servo.org Quantum: https://wiki.mozilla.org/Quantum Webkit: https://webkit.org Trident (MSHTML): https://en.wikipedia.org/wiki/MSHTML CSS: https://www.w3.org/Style/CSS Rust: https://www.rust-lang.org Ada standard: https://www.iso.org/standard/16028.html Web Monetization: https://foundation.mozilla.org/de/campaigns/web-monetization Mozilla's Vision for the Web: https://webvision.mozilla.org/full Peter Watt's Blindsight: https://rifters.com/real/Blindsight.htm Mozilla Manifesto: https://www.mozilla.org/en-US/about/manifesto/details

At the end, I am a little disappointed in the performance. One of the cell banks was discharging quicker than the others, but I replaced it and it is much more efficient now. All the cells were salvaged from old laptops. Figure 0.1 Click the thumbnail to see the full-sized image Figure 0.2 Click the thumbnail to see the full-sized image Figure 0.3 Figure 1 Click the thumbnail to see the full-sized image Figure 2.0 Click the thumbnail to see the full-sized image Figure 2.1 Click the thumbnail to see the full-sized image Figure 2.2 Click the thumbnail to see the full-sized image Figure 2.3 Click the thumbnail to see the full-sized image Figure 3 Click the thumbnail to see the full-sized image Figure 4 Click the thumbnail to see the full-sized image Figure 5 Click the thumbnail to see the full-sized image Figure 6 Click the thumbnail to see the full-sized image Figure 7 Click the thumbnail to see the full-sized image Figure 8 Click the thumbnail to see the full-sized image

https://onlykey.io/products/onlykey-duo-dual-usb-c-and-usb-a-security-key set __COMPAT_LAYER=RUNASINVOKER example usage https://github.com/freeload101/SCRIPTS/blob/704689e4febf164008089ecaf192cf03dde752c3/AutoHotkey/AutoHotkey.bat#L65 My post about ghosting your backers: https://onlykey.discourse.group/t/onlykey-duo-hello/643 https://twitter.com/operat0r/status/1511475178345222145

The stuff Evil Steve doesn't want you to know with Lurking Prion. This is Season 1, Episode 6. Picking up from the last episode, we are now delving in to the security measures we can implement to make ourselves a less attractive for Evil Steve. After implementing 2FA, we should now be setting up and using a password manager. Then we look for and changed passwords involved in known breaches (haveibeenpwned - link in show notes). The show is approximately 19 minutes long. Links: Has your password been involved in a breach? https://haveibeenpwned.com/ Password Manager Reviews: https://www.tomsguide.com/us/best-password-managers,review-3785.html https://www.pcmag.com/picks/the-best-password-managers https://www.nytimes.com/wirecutter/reviews/best-password-managers/ Stand-Alone Password Managers KeePass https://keepass.info/ KeePassXC https://keepassxc.org/ Recent Authenticator App Reviews https://www.pcmag.com/picks/the-best-authenticator-apps https://www.nytimes.com/wirecutter/reviews/best-two-factor-authentication-app/ Google password manager articles https://privacycrypts.com/password-managers/guides/is-chrome-password-manager-safe/ https://www.experian.com/blogs/ask-experian/is-google-passwordmanager-secure/ Apple iCloud Keychain https://www.imore.com/icloud-keychain https://www.intego.com/mac-security-blog/mac-and-ios-keychain-tutorial-how-apples-icloud-keychain-works/ https://www.podfeet.com/blog/2021/06/icloud-keychain-vs-1password/ iCloud Keychain 2FA - how to https://www.guidingtech.com/use-icloud-keychain-two-factor-authentication/ Apple iCloud Keychain security issues https://www.wired.com/story/keysteal-apple-keychain-attack-shenanigans/ Microsoft Authenticator vs Google Authenticator https://www.365tech.ca/which-one-is-better-microsoft-authenticator-or-google-authenticator/ Google Authenticator https://www.techdim.com/what-is-google-authenticator/ Google Authenticator security issue https://privacypros.io/u2f/stop-using-google-auth/ Microsoft Authenticator

For this lesson we are going to fill in a couple of concepts that we will need before we go further with directories. Wildcards can let you look for files and directories without specifying the complete name, and look for items with similar names or file extensions. And file attributes are an important part of file management. Links: https://www.ahuka.com/dos-lessons-for-self-study-purposes/dos-lesson-11-dos-wildcards-file-attributes/

In this episode our two ageing heroes take a closer at operating system (OS) level virtualisation. The main different legacy virtualisation technologies like virtual machines (VMs) and this new-fangled approach is that the OS kernel remains the same across virtualisation domains, thus giving the hippsters and other followers of fashion a cheaper and potentially much faster solution than virtualising the kernel and surrounding hawrdware and all the rest of it. Plus more details on Martin's real faith. Don't miss out on this episode if you're interested in any of these... Links: Craíc: https://www.irelandlogue.com/irish-slang/irish-slang.html Celts: https://en.wikipedia.org/wiki/Celts Celtic languages: https://en.wikipedia.org/wiki/Celtic_languages#Living_languages [a-zA-Z]+ Virtualisation: https://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/techpaper/VMware_paravirtualization.pdf Hypervisor: https://en.wikipedia.org/wiki/Hypervisor BSD Jails: https://docs.freebsd.org/en/books/handbook/jails Solaris Zones: https://www.oracle.com/technical-resources/articles/it-infrastructure/o11-092-s11-zones-intro.html Docker: https://docs.docker.com/engine LXC: https://linuxcontainers.org Open Container Iniative: https://opencontainers.org Podman: https://podman.io Double-fork: http://thelinuxjedi.blogspot.com/2014/02/why-use-double-fork-to-daemonize.html CRI-O: https://github.com/cri-o/cri-o CGroups: https://www.kernel.org/doc/html/latest/admin-guide/cgroup-v2.html Namespaces: https://en.wikipedia.org/wiki/Linux_namespaces The gory details: http://www.haifux.org/lectures/299/netLec7.pdf Dockerfiles: https://docs.docker.com/engine/reference/builder Containerd: https://containerd.io From Dusk Till Dawn (TV series): https://en.wikipedia.org/wiki/From_Dusk_till_Dawn:_The_Series