We started producing shows as Today with a Techie on 2005-09-19, 19 years, 0 months, 9 days ago. Our shows are produced by listeners like you and can be on any topics that "are of interest to hackers". If you listen to HPR then please consider contributing one show a year. If you record your show now it could be released in 11 days.
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Duration: 00:15:10
Lee talks about building a home lab consisting of several servers and some networking equipment.
The home lab on Reddit: 3_servers_a_mac_mini_and_some_old_networking_kit
Rack is limited to 30cm deep due to closet dimensions. All three server cases have been modded in one way or another (most drastic was the DVR, cut down from 40cm deep with an angle-grinder). To save money / energy, the DVR is the only one always on, except in winter when I can justify the others heating the apartment.
The (fairly obsolete) Cisco Router and old WiFi broadband router together can provide a Wireless LAN filtered with an IP deny list.
Top to bottom
Hosted by Ken Fallon on 2024-09-26 is flagged as Clean and released under a CC-BY-SA license.
M17, OpenRTX, RF-Swift, VLF, trx-control.
general.
1.
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Duration: 00:36:39
The Conference for Creative Use of the Radio Spectrum in Open Systems, that brings users of the radio spectrum together. For over a century, technology has made it possible to transfer more data, faster, further. Today, wireless technology is everywhere and commonplace. However, it remains a playground and a ground for innovation for many communities. The spectrum24 conference provides an opportunity to publicize projects and to allow the different communities that use the spectrum to meet in person over a weekend.
Let's start the day off with a talk with Morgan Dieport ON4MOD from the M17 Protocol.
M17 is a community of open source developers and radio
enthusiasts. We're building understandable systems in support of the
hackers and experimenters' history of ham radio.
OpenRTX is "Free and Open Source Firmware for Digital Ham Radios. Top-down designed with modularity, flexibility and performance in mind." The code is available on github.
We next caught up with Sebastien Dudek who had just presented a talk about the project
Introducing our Go and shell script-based toolbox, designed
to streamline the deployment of Docker containers for your preferred RF
tools. This evolving toolkit promises even more features in the near
future, making it an essential asset for RF enthusiasts.
The say that in Space no one can hear you scream, but here at spectrum24 I'm not so sure.
The talk from Thierry Alves F4EOB, CT2JTZ spoke of listening to cosmic wind.
So how low can you go ? Head over to http://www.vlf.it to find out.
What do you do when you're not organizing conferences ? Hacking a project to contrail radios, and a lot more besides, using Linux.
trx-control is a modern and extensible software system for
Linux to control transceivers and other devices over the network. It can
as well be used to integrate third-party applications or databases.
Hosted by Ken Fallon on 2024-09-25 is flagged as Clean and released under a CC-BY-SA license.
IARU, F4KLO, F4GOH, Meshcom, Satdump.
Interviews.
(Be the first).
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Duration: 00:38:51
The Conference for Creative Use of the Radio Spectrum in Open Systems, that brings users of the radio spectrum together. For over a century, technology has made it possible to transfer more data, faster, further. Today, wireless technology is everywhere and commonplace. However, it remains a playground and a ground for innovation for many communities. The spectrum24 conference provides an opportunity to publicize projects and to allow the different communities that use the spectrum to meet in person over a weekend.
It's only right to start with Sylvain Azarian F4GKR the president of the International Amateur Radio Union (IARU) | Region 1
The IARU represents the interests of the Amateur Radio Service worldwide to relevant international organisations, promoting the interests of amateur radio and seeking to protect and enhance its spectrum privileges.
Next we chat with François-Xavier Hugo and Jules Benkemoun F4IEY talking about the Radiotelescope in the form of a 10m dish parabolic mesh disk operated at the Club RadioAmateur F4KLO.
Anthony Le Cren - F4GOH, teaches electronics and computer technology at a Technical School and tells us about the science projects they got up to. He also managed to get a hour a week where he and his students set up an Amateur Radio Station in the school. What can you do in a hour a week ? Turns out quite a lot.
Have a look at his site Projets radio for more information.
We chat with Michael Zwingl OE3MZC who is president of the Institute of Citizen Science for Space and Wireless Communication about MeshCom 4.0
MeshCom is a project to exchange text messages via LORA radio
modules. The primary goal is to realize networked off-grid messaging
with low power and low cost hardware.
The technical approach is based on the use of LORA radio modules which transmit messages, positions, measured values, telecontrol and much more with low transmission power over long distances. MeshCom modules can be combined to form a mesh network, but can also be connected to a message network via MeshCom gateways, which are ideally connected via HAMNET. This enables MeshCom radio networks, which are not connected to each other via radio, to communicate with each other.
Although Alan Antoine F4LAU was unfortunately not able to attend in person, his shoes were filled by Jacopo Cassinis, and Zbigniew Sztanga who chatted with us about SatDump.
SatDump is a general purpose satellite data processing
software. It is a one-stop-shop that provides all the necessary stages
to get from the satellite transmission to actual products
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Duration: 00:20:09
I mention the acronym PLL which stands for Phase Locked Loop. Here is a Wikipedia article about PLL.
Picture 1
shows a top down view of the radio. The large black square section
located at the front left of the picture contains the speaker left and
control board right. With the top cover fitted the control board is
accessible via s sliding cover. Both the speaker and control board need
to be removed in order to get access to the PLL backup battery. Both
come out as one piece.
Picture 2
shows the first three connectors that need removing from the control
board. All six connectors need removing before lifting the control board
and speaker.
Picture 3
shows the second three connectors that need removing from the control
board. Notice they are marked with the letter F.
Picture 4
shows one of the connectors removed. I was nervous removing these.
Fortunately I was able to remove them without causing any damage.
Picture 5
shows the speaker and control board lifted out of place and swiveled to
the side to reveal the PLL unit which is encased in a metal box for
screening. There are eight screws on the top lid that need removing to
gain access to the inside of the screened PLL unit.
Picture 6
shows the top cover removed from the screened PLL unit revealing the
backup battery located in the middle of the picture (Silver disc with
orange outer rim). The top cover is swiveled to the left hand side out
of the way.
Picture 7
shows a close up of the PLL backup battery. From the picture droplets of
liquid can clearly be seen on the right hand connecting terminal
indicating that the battery is leaking and must be removed before damage
occurs. On the right hand side of the picture notice the two connectors
attached to the circuit board that are terminated with unused sockets. I
have no idea what these sockets are used for. There are brass pillars
either side of the connectors. I assume some sort of add on board could
be purchased and perhaps this is what the unused connectors are for. I
also mention an unpopulated IC socket that can be seen in the top left
hand side of the picture. This is probably for another optional
extra.
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Duration: 00:18:03
cat /usr/local/sbin/TOP
clear
echo `date` INFO: Showing any processes with videos open with ps aufx
# use LSOF insted .. ps aufx|grep -iaE "(\.avi|\.mpg|\.mov|\.flv|\.wmv|\.asf|\.mpeg|\.m4v|\.divx|\.mp4|\.mkv|\.sub|\.iso|\.264|\.vob|\.srt|\.img|\.sfv)" ps aufx|grep -iaE "(\.avi|\.mpg|\.mov|\.flv|\.wmv|\.asf|\.mpeg|\.m4v|\.divx|\.mp4|\.mkv|\.sub|\.iso|\.264|\.vob|\.srt|\.img|\.sfv)"
lsof -w | awk '{for (i = 1; i < 9; i++) $i = ""; sub(/^ */, ""); print}'|sort -u | grep -iaE "(\.avi|\.mpg|\.mov|\.flv|\.wmv|\.asf|\.mpeg|\.m4v|\.divx|\.mp4|\.mkv|\.sub|\.iso|\.264|\.vob|\.srt|\.img|\.sfv)" | grep -vE "(Beakman|\.movie)"
sleep 8
pkill -f tmux
tmux new-session -s asdf -n myWindow -d 'btop'\; \
split-window -d 'nethogs -v 3 -p'\; \
split-window -d 'intel_gpu_top'\; \
select-pane -t 0 \; \
resize-pane -y 24 \; attach-session
Hosted by Ahuka on 2024-09-20 is flagged as Clean and released under a CC-BY-SA license.
Computer games, strategy games, Civilization IV.
Computer Strategy Games.
(Be the first).
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Duration: 00:15:14
Civilization IV made some changes, and in this episode we look at the Victory types, how the tiles work, and how the game can be modded.
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Duration: 01:18:42
Windows CE - https://simple.wikipedia.org/wiki/Windows_CE
Embedded Linux - https://en.wikipedia.org/wiki/Linux_on_embedded_systems
Windows XP - https://en.wikipedia.org/wiki/Windows_XP
Munich City Council Goes Open Source - https://www.zdnet.com/article/linux-not-windows-why-munich-is-shifting-back-from-microsoft-to-open-source-again/
Microsoft Onedrive - https://www.microsoft.com/en-us/microsoft-365/onedrive/online-cloud-storage
Unity - https://unityd.org/
KDEN Live - https://kdenlive.org/en/
AppImage - https://appimage.org/
Mate - https://mate-desktop.org/
XFCE - https://www.xfce.org/
Pulse Audio - https://pulse.audio/
Flying Toasters - https://www.bryanbraun.com/after-dark-css/all/flying-toasters.html
Brian Lunduke - https://lunduke.locals.com/post/4619051/lunduke-journal-link-central-tm
Men In Black Films - https://www.rottentomatoes.com/franchise/men_in_black
UFO / UAP Disclosure - https://www.newsnationnow.com/space/ufo/uap-disclosure-bill-revised/
Italian UFO Crash - https://www.popularmechanics.com/military/research/a44466099/researcher-says-he-has-evidence-of-1933-ufo-crash-in-italy/
Joe Rogan - https://www.joerogan.com/
Spotify - https://open.spotify.com/
Oceania - https://en.wikipedia.org/wiki/Oceania
Area 51 - https://www.space.com/area-51-what-is-it
NASA, Aliens, and the Moon - https://www.livescience.com/65986-moon-brought-aliens-to-earth.html
Raiders of the Lost Ark Storage Room - https://screenrant.com/raiders-lost-ark-warehouse-movie-items-stored/
L Street Bath House In Boston - https://www.bostonirish.com/around-town/2023/curley-center-aka-l-street-opens-doors-public-tours
MIT - https://www.mit.edu/
PDP-10 - https://en.wikipedia.org/wiki/PDP-10
Green Cigars - https://www.cigaraficionado.com/article/10-things-to-know-about-candela-or-green-cigars
Health Benefits of a swim in cold water - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7730683/
Polar bear club - https://www.polarbearclub.org/pb-site/
Proxmox - https://www.proxmox.com/en/
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Duration: 00:05:43
Hi. I'm here to talk about Plain Text Programs, what they are, what they do, why they're good, and why they're not for everything. Right up front I'm requesting feedback on what I have to say. I'm on Mastodon and I'll start a thread for each podcast or you can reach me by email.
My Mastodon address is
@hairylarry@gamerplus.org
My profile is at
https://gamerplus.org/@hairylarry
And my email is
hairylarry@deltaboogie.com
Also you can Network With Hairy Larry at
https://deltaboogie.net.
In the future I plan on doing podcasts on specific Plain Text Programs, some that I wrote and some that were written by others. Any program that I will discuss will be licensed with a free culture license.
The first thing I want to emphasize about Plain Text Programs is that there's no database like SQL or LLM. All text data is written in plain text files stored on a file system.
Now, I love databases. Before I retired I was a database programmer. And as a database programmer I learned a lot about the difficulties maintaining programs that rely on databases. There's a lot of cool stuff you can do with a database that's just not reasonable to try with plain text. Now that I'm retired I don't really want to work that hard anymore. I want programming to be easy and fun.
Plain text does not mean there can't be images or other media. Image files like .jpg or .png can be stored in the file system just like text files. No worries.
A big advantage of Plain Text Programs is portability. To back up a working program you copy the directory tree that holds the program's files. To install or restore a Plain Text Program copy the tree onto a system or server.
I usually work on Linux using the PHP programming language. This is of course my preference. Any language running on any file system can be used to write Plain Text Programs.
My minimum install will usually have a configuration file, at least one program file, and a set of text files.
Some of the Plain Text Programs I use all the time that I wrote are
I also use Plain Text Programs that other programmers wrote
Music Folder Player
https://github.com/ltguillaume/music-folder-player
Free PHP File Directory Script
https://halgatewood.com/file-directory-list
Simple Image Browser
https://github.com/SammysHP/SimpleImageBrowser
Links to these programs are in the script.
So these are mostly websites or web applications but Plain Text Programs do not have to be outward facing. They can just be an easy program that you write to automate a task that you have to do periodically. Like my Backup The Web Server program that I wrote in bash.
I write my Plain Text Programs websites so that updates and additions are made with FTP. FTP is a well established secure way to transfer files from your development system to your web server. Another good option, particularly for static websites that are generated on the development system and then mirrored up to the server, is rsync.
I believe that simplicity is the key. I have written complicated Plain Text Programs including the social network writing game, Collab. But I think a simple one page or few pages design fits the plain text paradigm better.
Well, I'm going to call this a wrap for now. I plan on covering specific Plain Text Programs in future podcasts and I may occasionally step back and look at the big picture or discuss ideas and specifications for future projects.
Thanks for listening. I appreciate all your comments.
You can find the plain text script with the link to the comment thread and all other links at home.gamerplus.org, a Not Actually Plain Text Blog.
Comment thread link.
https://gamerplus.org/deck/@hairylarry/113142858145586294
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Duration: 00:08:38
A response to a 2016 show by Jon Kulp, about the KO Reader.
Hosted by Some Guy On The Internet on 2024-09-16 is flagged as Clean and released under a CC-BY-SA license.
New to Linux, documentation.
general.
(Be the first).
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Duration: 00:28:21
nano ~/.bashrc should be
vim ~/.bashrc.DEFINITIONS.
The following definitions are used throughout the rest of this document. blank A space or tab. word A sequence of characters considered as a single unit by the shell. Also known as a token. name A word consisting only of alphanumeric characters and underscores, and beginning with an alphabetic character or an underscore. Also referred to as an identifier. metacharacter A character that, when unquoted, separates words. One of the following: | & ; ( ) < > space tab newline control operator A token that performs a control function. It is one of the following symbols: || & && ; ;; ;& ;;& ( ) | |& <newline>
Lists.
A list is a sequence of one or more pipelines separated by one of the operators ;, &, &&, or ||, and optionally terminated by one of ;, &, or <newline>.
ARITHMETIC EVALUATION.
((expression)) - + unary minus and plus * / % multiplication, division, remainder + - addition, subtraction <= >= < > comparison == != equality and inequality && logical AND || logical OR
CONDITIONAL EXPRESSIONS.
[[ expression ]] Return a status of 0 or 1 depending on the evaluation of the conditional expression. -a file, True if file exists. -d file, True if file exists and is a directory. -f file, True if file exists and is a regular file.
PARAMETERS (Positional Parameters & Special Parameters).
A parameter is an entity that stores values.
EXPANSION.
race expansion, tilde expansion, parameter and variable expansion, command substitution, arithmetic expansion, word splitting, and pathname expansion.
JOB CONTROL.
Job control refers to the ability to selectively stop (suspend) the execution of processes and continue (resume) their execution at a later point.
Title: 'The Linux Command Line'
License: creativecommons:
Attribution-NonCommercial-NoDerivs 3.0 Unported 'CC BY-NC-ND 3.0'
Source(s):
linuxcommand:
'The Linux Command Line: Fifth Internet Edition' by William
Shotts.
archive:
'The Linux Command Line Fifth Internet Edition' by William Shotts.
Title: bash Linux manual page.
License: Bash is Copyright (C) 1989-2022 by the Free
Software Foundation, Inc.
Source(s):
man7: bash(1) — Linux manual
page
man7:
Linux manual pages: alphabetic list of all pages.
Trollercoaster interacts with the Community News Summary of August 2024
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It's how to use the normal menu items to make online tabular data easier to use.
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Kevie discusses Dynamic DNS and how to setup DuckDNS on a Raspberry Pi
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Part 3 deals with the replacement of the clock backup battery on my TS-940S
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Some random technical items this time
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An introduction to one of my favorites, Doctor Who
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The HPR community comes together to converse
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Personal reflections on hobbies, obsessive interests and mental health
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Ken interviews Gary Williams about rebooting the OggCamp meetup
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HPR Volunteers talk about shows released and comments posted in August 2024
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Social Engineering more contributions to HPR by picking when to publish your show
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How to use the tune2fs program to reduce the reserved block percentage value
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Dave records an episode for HPR explaining why he hasn't recorded an episode for HPR.
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Replacing batteries in my HF Amateur radio TS-940S. Covers replacement of the clock battery
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A brief introduction to the rkvm software KVM
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We start our look at the next game in the Civilization franchise, Civilization IV
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The HPR community comes together to converse
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Archer72 responds to Ken's comment on HPR4172 with hopefully enough detail
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A simple card game you can play this summer
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Sam ask how to get started with organizing Software Freedom Day.
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VCR players are starting to get expensive so now is the time to archive.
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GKRellm can show live thumbnails. This script gets fresh data and types text on the images.
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Kevie discusses what was in his holiday bag.
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This is part 1 recording my experience of replacing backup button batteries in my HF ham radio
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Using tor proxy with yt-dlp to get public domain movies
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I'm starting a new series on science fiction and fantasy, and this introduces it
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The HPR community comes together to converse
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A few more things I learnt recently
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Deltaray provides an audio tutorial of how to use the Blender 3D software
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HPR Volunteers talk about shows released and comments posted in July 2024
Get a full list of all our shows.