Linux

This might be useful when your machine shuts down unexpectadly under heavy loads: https://github.com/FlyGoat/RyzenAdj

For me it only happens in Windows when the batery is charging too. I think charging thresholds are a must. In linux we have tlp: https://linrunner.de/tlp/ and https://wiki.archlinux.org/index.php/TLP and https://github.com/linrunner/TLP :-D

I have an old external seagate ssd 2TB for backup called "BUP Slim BL". It was a challenge to enable the SMART capability on Ubuntu 20.10.

You might give this a go: sudo smartctl -d sat -T permissive --smart=on /dev/sda1

If that does not work, you might need:

echo options usb-storage quirks=$(lsusb | awk '/Seagate/ {print $6}'):u | sudo tee -a /etc/modprobe.d/ignore_uas.conf
sudo update-initramfs -u

Fix with: pkill -U $USER pulseaudio

(https://bugs.launchpad.net/ubuntu/+source/alsa-lib/+bug/1865499)

Configure Postfix with an authenticated SMTP relay, verify TLS and sender DNS, and test the full delivery path for business applications and server alerts.

curl tags: https://stackoverflow.com/questions/3074288/get-final-url-after-curl-is…

How to solve CloudFlare protection: https://stackoverflow.com/questions/18500088/curl-load-a-site-with-clou…

PDF

https://blog.joshlemon.com.au/protecting-your-pdf-files-and-metadata/

https://gist.github.com/hubgit/6078384

exiftool -all:all= $FILE ; qpdf --linearize $FILE output.pdf

Images

imagemagick: mogrify -strip NAME_OF_FILE

Test with: exiftool -all NAME_OF_FILE

Default kernel parameters: "quiet splash".

In my opinion you will get more sucessful boots and reduced graphical errors on boot if you remove quit and splash. Specifically the splash screen can make strange things happen and when removing "quiet" you are able to debug if there is an error.

I also tried to fiddel with "/etc/grub.d/48_linux_zfs" where I tried to out comment #vt_handoff="1" and set quiet boot to zero: 

Remove ssl cert: sudo certbot-auto delete 

Remap missing symbols and a broken Shift key in Kubuntu 20.04, with practical X11 commands, login persistence, recovery steps, and guidance for Wayland.

If you have the black screen of death when trying to get back from suspend mode, you might want to check out this bug description and possible resolutions: https://bugs.launchpad.net/ubuntu/+source/plasma-desktop/+bug/1849084

Otherwise disable compositor: qdbus org.kde.KWin /Compositor suspend

Check if compositor is enabled: qdbus org.kde.KWin /Compositor org.kde.kwin.Compositing.active
Or: qdbus org.kde.KWin /KWin supportInformation