Fix with: pkill -U $USER pulseaudio
(https://bugs.launchpad.net/ubuntu/+source/alsa-lib/+bug/1865499)
Fix with: pkill -U $USER pulseaudio
(https://bugs.launchpad.net/ubuntu/+source/alsa-lib/+bug/1865499)
In this example we use Ubuntu linux.
Software: mailutils
Restart postfix after changing postfix config file: main.cf: sudo service postfix restart
First test if you can access gmail through port 25: telnet gmail-smtp-in.l.google.com 25
Test mail with: echo "Hello world" | mail -s "Test Email" -a "From: [email protected]" toMail.com
Or: echo "Test from $HOSTNAME" | mail -s "Everything A okay" -a "From: noreply@$HOSTNAME" [destinationmail.com]
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…
https://blog.joshlemon.com.au/protecting-your-pdf-files-and-metadata/
https://gist.github.com/hubgit/6078384
exiftool -all:all= $FILE ; qpdf --linearize $FILE output.pdf
imagemagick: mogrify -strip NAME_OF_FILE
Test with: exiftool -all NAME_OF_FILE
Default kernel parameters: "quiet splash".
In my opinion you will get more sucessful boots and reduced graphical errors on boot if you remove quit and splash. Specifically the splash screen can make strange things happen and when removing "quiet" you are able to debug if there is an error.
I also tried to fiddel with "/etc/grub.d/48_linux_zfs" where I tried to out comment #vt_handoff="1" and set quiet boot to zero:
Remove ssl cert: sudo certbot-auto delete
Quick instructions:
insert: "keycode 49 = less greater backslash backslash backslash" in "$HOME/.Xmodmap" and run "xmodmap .Xmodmap" - this will setup your keys on the system.
To make these keys persistent run: "xkbcomp $DISPLAY $HOME/.xkbmap"
Very interesting: https://medium.com/@saplos123456/persistent-keyboard-mapping-on-ubuntu-using-xmodmap-cd01ad828fcd
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
Currently running flutter in ubuntu 20.04.
Flutter cli doc: https://flutter.dev/docs/reference/flutter-cli
Flutter pub doc: https://dart.dev/tools/pub/cmd
KVM installation: sudo apt install qemu-kvm libvirt-daemon-system libvirt-clients bridge-utils virtinst virt-manager
Old info: sudo apt install qemu qemu-kvm virt-manager (Remember to enable VT Virtualization in the Bios) - run: sudo kvm-ok (to check)