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| -rw-r--r-- | about/resources.md | 206 | ||||
| -rw-r--r-- | gemfeed/2024-12-03-f3s-kubernetes-with-freebsd-part-2.md | 73 | ||||
| -rw-r--r-- | index.md | 2 | ||||
| -rw-r--r-- | uptime-stats.md | 2 |
4 files changed, 165 insertions, 118 deletions
diff --git a/about/resources.md b/about/resources.md index 4134e594..2398d345 100644 --- a/about/resources.md +++ b/about/resources.md @@ -35,54 +35,54 @@ You won't find any links on this site because, over time, the links will break. In random order: +* 21st Century C: C Tips from the New School; Ben Klemens; O'Reilly +* Perl New Features; Joshua McAdams, brian d foy; Perl School +* DevOps And Site Reliability Engineering Handbook; Stephen Fleming; Audible * Distributed Systems: Principles and Paradigms; Andrew S. Tanenbaum; Pearson +* Terraform Cookbook; Mikael Krief; Packt Publishing * Systemprogrammierung in Go; Frank Müller; dpunkt -* DevOps And Site Reliability Engineering Handbook; Stephen Fleming; Audible -* Learn You a Haskell for Great Good!; Miran Lipovaca; No Starch Press +* Amazon Web Services in Action; Michael Wittig and Andreas Wittig; Manning Publications +* Ultimate Go Notebook; Bill Kennedy +* Learn You Some Erlang for Great Good; Fred Herbert; No Starch Press +* Systems Performance Tuning; Gian-Paolo D. Musumeci and others...; O'Reilly +* Hands-on Infrastructure Monitoring with Prometheus; Joel Bastos, Pedro Araujo; Packt * Kubernetes Cookbook; Sameer Naik, Sébastien Goasguen, Jonathan Michaux; O'Reilly -* C++ Programming Language; Bjarne Stroustrup; +* Site Reliability Engineering; How Google runs production systems; O'Reilly +* Go Brain Teasers - Exercise Your Mind; Miki Tebeka; The Pragmatic Programmers +* Programming Perl aka "The Camel Book"; Tom Christiansen, brian d foy, Larry Wall & Jon Orwant; O'Reilly +* Data Science at the Command Line; Jeroen Janssens; O'Reilly +* Clusterbau mit Linux-HA; Michael Schwartzkopff; O'Reilly +* Leanring eBPF; Liz Rice; O'Reilly +* Pro Puppet; James Turnbull, Jeffrey McCune; Apress +* Programming Ruby 3.3 (5th Edition); Noel Rappin, with Dave Thomas; The Pragmatic Bookshelf +* Developing Games in Java; David Brackeen and others...; New Riders +* Raku Fundamentals; Moritz Lenz; Apress +* The KCNA (Kubernetes and Cloud Native Associate) Book; Nigel Poulton +* Concurrency in Go; Katherine Cox-Buday; O'Reilly * The Kubernetes Book; Nigel Poulton; Unabridged Audiobook -* Object-Oriented Programming with ANSI-C; Axel-Tobias Schreiner -* Polished Ruby Programming; Jeremy Evans; Packt Publishing +* The Pragmatic Programmer; David Thomas; Addison-Wesley * 97 things every SRE should know; Emil Stolarsky, Jaime Woo; O'Reilly -* The KCNA (Kubernetes and Cloud Native Associate) Book; Nigel Poulton -* Seeking SRE: Conversations About Running Production Systems at Scale; David N. Blank-Edelman; eBook -* The Docker Book; James Turnbull; Kindle -* Effective Java; Joshua Bloch; Addison-Wesley Professional -* Higher Order Perl; Mark Dominus; Morgan Kaufmann -* Perl New Features; Joshua McAdams, brian d foy; Perl School -* Learn You Some Erlang for Great Good; Fred Herbert; No Starch Press +* Polished Ruby Programming; Jeremy Evans; Packt Publishing +* Chaos Engineering - System Resiliency in Practice; Casey Rosenthal and Nora Jones; eBook +* Learn You a Haskell for Great Good!; Miran Lipovaca; No Starch Press +* C++ Programming Language; Bjarne Stroustrup; * The Practise of System and Network Administration; Thomas A. Limoncelli, Christina J. Hogan, Strata R. Chalup; Addison-Wesley Professional Pro Git; Scott Chacon, Ben Straub; Apress -* Developing Games in Java; David Brackeen and others...; New Riders -* 21st Century C: C Tips from the New School; Ben Klemens; O'Reilly -* The DevOps Handbook; Gene Kim, Jez Humble, Patrick Debois, John Willis; Audible -* Leanring eBPF; Liz Rice; O'Reilly -* Raku Recipes; J.J. Merelo; Apress -* Ultimate Go Notebook; Bill Kennedy -* Clusterbau mit Linux-HA; Michael Schwartzkopff; O'Reilly -* Programming Perl aka "The Camel Book"; Tom Christiansen, brian d foy, Larry Wall & Jon Orwant; O'Reilly -* Concurrency in Go; Katherine Cox-Buday; O'Reilly -* Think Raku (aka Think Perl 6); Laurent Rosenfeld, Allen B. Downey; O'Reilly -* Amazon Web Services in Action; Michael Wittig and Andreas Wittig; Manning Publications -* Modern Perl; Chromatic ; Onyx Neon Press -* 100 Go Mistakes and How to Avoid Them; Teiva Harsanyi; Manning Publications +* The Go Programming Language; Alan A. A. Donovan; Addison-Wesley Professional +* Java ist auch eine Insel; Christian Ullenboom; * Tmux 2: Productive Mouse-free Development; Brain P. Hogan; The Pragmatic Programmers -* Hands-on Infrastructure Monitoring with Prometheus; Joel Bastos, Pedro Araujo; Packt -* Funktionale Programmierung; Peter Pepper; Springer * DNS and BIND; Cricket Liu; O'Reilly -* Go Brain Teasers - Exercise Your Mind; Miki Tebeka; The Pragmatic Programmers -* The Pragmatic Programmer; David Thomas; Addison-Wesley -* Terraform Cookbook; Mikael Krief; Packt Publishing * Effective awk programming; Arnold Robbins; O'Reilly -* Raku Fundamentals; Moritz Lenz; Apress -* Systems Performance Tuning; Gian-Paolo D. Musumeci and others...; O'Reilly -* Pro Puppet; James Turnbull, Jeffrey McCune; Apress -* Java ist auch eine Insel; Christian Ullenboom; -* Data Science at the Command Line; Jeroen Janssens; O'Reilly -* Chaos Engineering - System Resiliency in Practice; Casey Rosenthal and Nora Jones; eBook -* The Go Programming Language; Alan A. A. Donovan; Addison-Wesley Professional -* Programming Ruby 3.3 (5th Edition); Noel Rappin, with Dave Thomas; The Pragmatic Bookshelf -* Site Reliability Engineering; How Google runs production systems; O'Reilly +* Modern Perl; Chromatic ; Onyx Neon Press +* Raku Recipes; J.J. Merelo; Apress +* Effective Java; Joshua Bloch; Addison-Wesley Professional +* 100 Go Mistakes and How to Avoid Them; Teiva Harsanyi; Manning Publications +* Higher Order Perl; Mark Dominus; Morgan Kaufmann +* Object-Oriented Programming with ANSI-C; Axel-Tobias Schreiner +* Funktionale Programmierung; Peter Pepper; Springer +* Seeking SRE: Conversations About Running Production Systems at Scale; David N. Blank-Edelman; eBook +* The DevOps Handbook; Gene Kim, Jez Humble, Patrick Debois, John Willis; Audible +* Think Raku (aka Think Perl 6); Laurent Rosenfeld, Allen B. Downey; O'Reilly +* The Docker Book; James Turnbull; Kindle ## Technical references @@ -90,10 +90,10 @@ I didn't read them from the beginning to the end, but I am using them to look up * BPF Performance Tools - Linux System and Application Observability, Brendan Gregg; Addison Wesley * Algorithms; Robert Sedgewick, Kevin Wayne; Addison Wesley -* Implementing Service Level Objectives; Alex Hidalgo; O'Reilly -* The Linux Programming Interface; Michael Kerrisk; No Starch Press * Go: Design Patterns for Real-World Projects; Mat Ryer; Packt +* Implementing Service Level Objectives; Alex Hidalgo; O'Reilly * Relayd and Httpd Mastery; Michael W Lucas +* The Linux Programming Interface; Michael Kerrisk; No Starch Press * Understanding the Linux Kernel; Daniel P. Bovet, Marco Cesati; O'Reilly * Groovy Kurz & Gut; Joerg Staudemeier; O'Reilly @@ -101,44 +101,44 @@ I didn't read them from the beginning to the end, but I am using them to look up In random order: -* Influence without Authority; A. Cohen, D. Bradford; Wiley -* The Software Engineer's Guidebook: Navigating senior, tech lead, and staff engineer positions at tech companies and startups; Gergely Orosz; Audiobook -* Ultralearning; Anna Laurent; Self-published via Amazon -* Never Split the Difference; Chris Voss, Tahl Raz; Random House Business -* Ultralearning; Scott Young; Thorsons -* The Good Enough Job; Simone Stolzoff; Ebury Edge -* Atomic Habits; James Clear; Random House Business -* So Good They Can't Ignore You; Cal Newport; Business Plus -* Solve for Happy; Mo Gawdat (RE-READ 1ST TIME) -* The Off Switch; Mark Cropley; Virgin Books (RE-READ 1ST TIME) -* Coders at Work - Reflections on the craft of programming, Peter Seibel and Mitchell Dorian et al., Audiobook -* The Phoenix Project - A Novel About IT, DevOps, and Helping your Business Win; Gene Kim and Kevin Behr; Trade Select -* The Power of Now; Eckhard Tolle; Yellow Kite -* The Daily Stoic; Ryan Holiday, Stephen Hanselman; Profile Books +* Eat That Frog!; Brian Tracy; Hodder Paperbacks * The Obstacle Is The Way; Ryan Holiday; Profile Books Ltd -* Meditation for Mortals, Oliver Burkeman, Audiobook -* Who Moved My Cheese?; Dr. Spencer Johnson; Vermilion -* The Bullet Journal Method; Ryder Carroll; Fourth Estate -* The Joy of Missing Out; Christina Crook; New Society Publishers -* Buddah and Einstein walk into a Bar; Guy Joseph Ale, Claire Bloom; Blackstone Publishing -* Staff Engineer: Leadership beyond the management track; Will Larson; Audiobook +* Search Inside Yourself - The Unexpected path to Achieving Success, Happiness (and World Peace); Chade-Meng Tan, Daniel Goleman, Jon Kabat-Zinn; HarperOne +* 101 Essays that change the way you think; Brianna Wiest; Audiobook * Eat That Frog; Brian Tracy -* Eat That Frog!; Brian Tracy; Hodder Paperbacks +* The Software Engineer's Guidebook: Navigating senior, tech lead, and staff engineer positions at tech companies and startups; Gergely Orosz; Audiobook +* Deep Work; Cal Newport; Piatkus * Psycho-Cybernetics; Maxwell Maltz; Perigee Books -* Stop starting, start finishing; Arne Roock; Lean-Kanban University -* The Complete Software Developer's Career Guide; John Sonmez; Unabridged Audiobook -* Digital Minimalism; Cal Newport; Portofolio Penguin +* The Bullet Journal Method; Ryder Carroll; Fourth Estate * The 7 Habits Of Highly Effective People; Stephen R. Covey; Simon & Schuster UK -* 101 Essays that change the way you think; Brianna Wiest; Audiobook -* 97 Things Every Engineering Manager Should Know; Camille Fournier; Audiobook +* The Power of Now; Eckhard Tolle; Yellow Kite +* So Good They Can't Ignore You; Cal Newport; Business Plus +* Digital Minimalism; Cal Newport; Portofolio Penguin +* The Complete Software Developer's Career Guide; John Sonmez; Unabridged Audiobook * Slow Productivity; Cal Newport; Penguin Random House -* The Courage to Be Disliked; Ichiro Kishimi and Fumitake Koga; Audiobook +* Getting Things Done; David Allen +* The Phoenix Project - A Novel About IT, DevOps, and Helping your Business Win; Gene Kim and Kevin Behr; Trade Select +* Buddah and Einstein walk into a Bar; Guy Joseph Ale, Claire Bloom; Blackstone Publishing * Time Management for System Administrators; Thomas A. Limoncelli; O'Reilly +* The Good Enough Job; Simone Stolzoff; Ebury Edge +* Atomic Habits; James Clear; Random House Business +* The Daily Stoic; Ryan Holiday, Stephen Hanselman; Profile Books +* 97 Things Every Engineering Manager Should Know; Camille Fournier; Audiobook +* Never Split the Difference; Chris Voss, Tahl Raz; Random House Business +* Influence without Authority; A. Cohen, D. Bradford; Wiley +* Staff Engineer: Leadership beyond the management track; Will Larson; Audiobook +* Who Moved My Cheese?; Dr. Spencer Johnson; Vermilion +* Meditation for Mortals, Oliver Burkeman, Audiobook * Consciousness: A Very Short Introduction; Susan Blackmore; Oxford Uiversity Press -* Deep Work; Cal Newport; Piatkus -* Search Inside Yourself - The Unexpected path to Achieving Success, Happiness (and World Peace); Chade-Meng Tan, Daniel Goleman, Jon Kabat-Zinn; HarperOne -* Getting Things Done; David Allen +* Ultralearning; Anna Laurent; Self-published via Amazon +* The Courage to Be Disliked; Ichiro Kishimi and Fumitake Koga; Audiobook +* Coders at Work - Reflections on the craft of programming, Peter Seibel and Mitchell Dorian et al., Audiobook * Soft Skills; John Sommez; Manning Publications +* The Off Switch; Mark Cropley; Virgin Books (RE-READ 1ST TIME) +* Ultralearning; Scott Young; Thorsons +* Stop starting, start finishing; Arne Roock; Lean-Kanban University +* The Joy of Missing Out; Christina Crook; New Society Publishers +* Solve for Happy; Mo Gawdat (RE-READ 1ST TIME) [Here are notes of mine for some of the books](../notes/index.md) @@ -146,30 +146,30 @@ In random order: Some of these were in-person with exams; others were online learning lectures only. In random order: -* Apache Tomcat Best Practises; 3-day on-site training +* Developing IaC with Terraform (with Live Lessons); O'Reilly Online +* Scripting Vim; Damian Conway; O'Reilly Online * Red Hat Certified System Administrator; Course + certification (Although I had the option, I decided not to take the next course as it is more effective to self learn what I need) -* MySQL Deep Dive Workshop; 2-day on-site training -* Algorithms Video Lectures; Robert Sedgewick; O'Reilly Online -* Structure and Interpretation of Computer Programs; Harold Abelson and more...; +* Functional programming lecture; Remote University of Hagen +* Cloud Operations on AWS - Learn how to configure, deploy, maintain, and troubleshoot your AWS environments; 3-day online live training with labs; Amazon * The Well-Grounded Rubyist Video Edition; David. A. Black; O'Reilly Online +* MySQL Deep Dive Workshop; 2-day on-site training * Ultimate Go Programming; Bill Kennedy; O'Reilly Online -* Cloud Operations on AWS - Learn how to configure, deploy, maintain, and troubleshoot your AWS environments; 3-day online live training with labs; Amazon +* Algorithms Video Lectures; Robert Sedgewick; O'Reilly Online * Protocol buffers; O'Reilly Online -* The Ultimate Kubernetes Bootcamp; School of Devops; O'Reilly Online -* AWS Immersion Day; Amazon; 1-day interactive online training -* Developing IaC with Terraform (with Live Lessons); O'Reilly Online -* Functional programming lecture; Remote University of Hagen +* Structure and Interpretation of Computer Programs; Harold Abelson and more...; * F5 Loadbalancers Training; 2-day on-site training; F5, Inc. +* Apache Tomcat Best Practises; 3-day on-site training +* AWS Immersion Day; Amazon; 1-day interactive online training +* The Ultimate Kubernetes Bootcamp; School of Devops; O'Reilly Online * Linux Security and Isolation APIs Training; Michael Kerrisk; 3-day on-site training -* Scripting Vim; Damian Conway; O'Reilly Online ## Technical guides These are not whole books, but guides (smaller or larger) which I found very useful. in random order: +* Raku Guide at https://raku.guide * Advanced Bash-Scripting Guide * How CPUs work at https://cpu.land -* Raku Guide at https://raku.guide ## Podcasts @@ -177,58 +177,58 @@ These are not whole books, but guides (smaller or larger) which I found very use In random order: -* Hidden Brain -* Pratical AI -* Maintainable -* Fallthrough [Golang] * Backend Banter -* Wednesday Wisdom +* BSD Now [BSD] * Fork Around And Find Out * Cup o' Go [Golang] -* Deep Questions with Cal Newport -* The Pragmatic Engineer Podcast +* Pratical AI * The ProdCast (Google SRE Podcast) +* The Pragmatic Engineer Podcast * Modern Mentor -* Dev Interrupted -* BSD Now [BSD] +* Deep Questions with Cal Newport +* Hidden Brain +* Maintainable * The Changelog Podcast(s) +* Fallthrough [Golang] +* Dev Interrupted +* Wednesday Wisdom ### Podcasts I liked I liked them but am not listening to them anymore. The podcasts have either "finished" (no more episodes) or I stopped listening to them due to time constraints or a shift in my interests. * Ship It (predecessor of Fork Around And Find Out) -* Go Time (predecessor of fallthrough) +* Modern Mentor * FLOSS weekly +* Go Time (predecessor of fallthrough) * CRE: Chaosradio Express [german] -* Modern Mentor * Java Pub House ## Newsletters I like This is a mix of tech and non-tech newsletters I am subscribed to. In random order: -* Monospace Mentor -* The Pragmatic Engineer -* Register Spill -* Changelog News -* VK Newsletter -* The Valuable Dev -* Applied Go Weekly Newsletter * Ruby Weekly * Andreas Brandhorst Newsletter (Sci-Fi author) -* byteSizeGo * Golang Weekly +* Applied Go Weekly Newsletter +* The Valuable Dev +* Changelog News +* Register Spill * The Imperfectionist +* Monospace Mentor +* byteSizeGo +* The Pragmatic Engineer +* VK Newsletter ## Magazines I like(d) This is a mix of tech I like(d). I may not be a current subscriber, but now and then, I buy an issue. In random order: -* freeX (not published anymore) +* LWN (online only) * Linux User +* freeX (not published anymore) * Linux Magazine -* LWN (online only) # Formal education diff --git a/gemfeed/2024-12-03-f3s-kubernetes-with-freebsd-part-2.md b/gemfeed/2024-12-03-f3s-kubernetes-with-freebsd-part-2.md index a920009f..ba09dcd2 100644 --- a/gemfeed/2024-12-03-f3s-kubernetes-with-freebsd-part-2.md +++ b/gemfeed/2024-12-03-f3s-kubernetes-with-freebsd-part-2.md @@ -45,8 +45,9 @@ Let's continue... * [⇢ ⇢ CPU throttling](#cpu-throttling) * [⇢ Wake-on-LAN Setup](#wake-on-lan-setup) * [⇢ ⇢ Setting up WoL on the laptop](#setting-up-wol-on-the-laptop) -* [⇢ ⇢ Testing WoL](#testing-wol) +* [⇢ ⇢ Testing WoL and Shutdown](#testing-wol-and-shutdown) * [⇢ ⇢ WoL from WiFi](#wol-from-wifi) +* [⇢ ⇢ Remote Shutdown via SSH](#remote-shutdown-via-ssh) * [⇢ ⇢ BIOS Configuration](#bios-configuration) * [⇢ Conclusion](#conclusion) @@ -312,17 +313,25 @@ To wake the Beelinks from my Fedora laptop (`earth`), I installed the `wol` pack [paul@earth]~% sudo dnf install -y wol ``` -Next, I created a simple script (`~/bin/wol-f3s`) to wake the machines: +Next, I created a simple script (`~/bin/wol-f3s`) to wake and shutdown the machines: ```sh #!/bin/bash -# Wake-on-LAN script for f3s cluster (f0, f1, f2) +# Wake-on-LAN and shutdown script for f3s cluster (f0, f1, f2) # MAC addresses F0_MAC="e8:ff:1e:d7:1c:ac" # f0 (192.168.1.130) F1_MAC="e8:ff:1e:d7:1e:44" # f1 (192.168.1.131) F2_MAC="e8:ff:1e:d7:1c:a0" # f2 (192.168.1.132) +# IP addresses +F0_IP="192.168.1.130" +F1_IP="192.168.1.131" +F2_IP="192.168.1.132" + +# SSH user +SSH_USER="paul" + # Broadcast address for your LAN BROADCAST="192.168.1.255" @@ -333,7 +342,18 @@ wake() { wol -i "$BROADCAST" "$mac" } -case "${1:-all}" in +shutdown_host() { + local name=$1 + local ip=$2 + echo "Shutting down $name ($ip)..." + ssh -o ConnectTimeout=5 "$SSH_USER@$ip" "doas poweroff" 2>/dev/null && \ + echo " ✓ Shutdown command sent to $name" || \ + echo " ✗ Failed to reach $name (already down?)" +} + +ACTION="${1:-all}" + +case "$ACTION" in f0) wake "f0" "$F0_MAC" ;; f1) wake "f1" "$F1_MAC" ;; f2) wake "f2" "$F2_MAC" ;; @@ -342,8 +362,16 @@ case "${1:-all}" in wake "f1" "$F1_MAC" wake "f2" "$F2_MAC" ;; + shutdown|poweroff|down) + shutdown_host "f0" "$F0_IP" + shutdown_host "f1" "$F1_IP" + shutdown_host "f2" "$F2_IP" + echo "" + echo "✓ Shutdown commands sent to all machines." + exit 0 + ;; *) - echo "Usage: $0 [f0|f1|f2|all]" + echo "Usage: $0 [f0|f1|f2|all|shutdown]" exit 1 ;; esac @@ -352,21 +380,28 @@ echo "" echo "✓ WoL packets sent. Machines should boot in a few seconds." ``` -After making the script executable with `chmod +x ~/bin/wol-f3s`, I can now wake the machines with simple commands: +After making the script executable with `chmod +x ~/bin/wol-f3s`, I can now control the machines with simple commands: ```sh -[paul@earth]~% wol-f3s # Wake all three -[paul@earth]~% wol-f3s f0 # Wake only f0 +[paul@earth]~% wol-f3s # Wake all three +[paul@earth]~% wol-f3s f0 # Wake only f0 +[paul@earth]~% wol-f3s shutdown # Shutdown all three via SSH ``` -## Testing WoL +## Testing WoL and Shutdown -To test the setup, I shutdown all three machines: +To test the setup, I shutdown all three machines using the script's shutdown function: ```sh -[paul@earth]~% ssh paul@192.168.1.130 "doas poweroff" -[paul@earth]~% ssh paul@192.168.1.131 "doas poweroff" -[paul@earth]~% ssh paul@192.168.1.132 "doas poweroff" +[paul@earth]~% wol-f3s shutdown +Shutting down f0 (192.168.1.130)... + ✓ Shutdown command sent to f0 +Shutting down f1 (192.168.1.131)... + ✓ Shutdown command sent to f1 +Shutting down f2 (192.168.1.132)... + ✓ Shutdown command sent to f2 + +✓ Shutdown commands sent to all machines. ``` After waiting for them to fully power down (about 1 minute), I sent the WoL magic packets: @@ -391,6 +426,18 @@ An important note: **Wake-on-LAN works perfectly even when the laptop is connect This makes WoL very convenient - I can wake the cluster from anywhere in my home, whether I'm on WiFi or ethernet. +## Remote Shutdown via SSH + +While Wake-on-LAN handles powering on the machines remotely, I also added a shutdown function to the script for convenience. The `wol-f3s shutdown` command uses SSH to connect to each machine and execute `doas poweroff`, gracefully shutting them all down. + +This is particularly useful for power saving - when I'm done working with the cluster for the day, I can simply run: + +```sh +[paul@earth]~% wol-f3s shutdown +``` + +And all three machines will shut down cleanly. The next time I need them, a simple `wol-f3s` command wakes them all back up. This combination makes the cluster very energy-efficient while maintaining quick access when needed. + ## BIOS Configuration For WoL to work reliably, make sure to check the BIOS settings on each Beelink: @@ -1,6 +1,6 @@ # Hello! -> This site was generated at 2026-01-11T10:37:38+02:00 by `Gemtexter` +> This site was generated at 2026-01-11T10:46:34+02:00 by `Gemtexter` Welcome to the foo.zone! diff --git a/uptime-stats.md b/uptime-stats.md index c87bb8b0..d9200242 100644 --- a/uptime-stats.md +++ b/uptime-stats.md @@ -1,6 +1,6 @@ # My machine uptime stats -> This site was last updated at 2026-01-11T10:37:38+02:00 +> This site was last updated at 2026-01-11T10:46:34+02:00 The following stats were collected via `uptimed` on all of my personal computers over many years and the output was generated by `guprecords`, the global uptime records stats analyser of mine. |