Use the Angular project template with ASP.NET Core

Create a new app

dotnet new angular -o my-new-app
cd my-new-app

Add pages, images, styles, modules, etc.

The ClientApp directory contains a standard Angular CLI app

Run ng commands

remove package-lock.json then :

cd ClientApp
npm install

Install npm packages

cd ClientApp
npm install --save <package_name>

Run “ng serve” independently

cd ClientApp
npm start

Use npm start to launch the Angular CLI development server, not ng serve, so that the configuration in package.json is respected. To pass additional parameters to the Angular CLI server, add them to the relevant scripts line in your package.json file.

In your Startup class, replace the spa.UseAngularCliServer invocation with the following:

spa.UseProxyToSpaDevelopmentServer("http://localhost:4200");

References
https://docs.microsoft.com/en-us/aspnet/core/client-side/spa/angular?view=aspnetcore-6.0&tabs=visual-studio

Controlling Dell Laptop Keyboard Backlight in Linux

Show the configured brightness

cat /sys/devices/platform/dell-laptop/leds/dell\:\:kbd_backlight/brightness
0

See the maximum brightness

cat /sys/devices/platform/dell-laptop/leds/dell\:\:kbd_backlight/max_brightness
4

Set the desired level of brightness

$ echo 4 | sudo tee /sys/devices/platform/dell-laptop/leds/dell\:\:kbd_backlight/brightness

References
https://askubuntu.com/questions/1076393/dell-keyboard-backlight-is-not-working
https://www.unixtutorial.org/controlling-dell-laptop-keyboard-backlight-from-command-line/

Create a Samba share on Fedora

sudo dnf install samba
sudo systemctl enable smb --now
firewall-cmd --get-active-zones
sudo firewall-cmd --permanent --zone=FedoraWorkstation --add-service=samba
sudo firewall-cmd --reload

Samba does not use the operating system users for authentication, so your user account must be duplicated in Samba. So if your account is jane on the host, the user jane must also be added to Samba. While the usernames must match, the passwords can be different.

sudo smbpasswd -a jane

mkdir /home/jane/share
sudo semanage fcontext --add --type "samba_share_t" ~/share
sudo restorecon -R ~/share
sudo nano /etc/samba/smb.conf
[share]
        comment = My Share
        path = /home/jane/share
        writeable = yes
        browseable = yes
        public = yes
        create mask = 0644
        directory mask = 0755
        write list = user
sudo systemctl restart smb

Disable SELinux if required

sudo nano /etc/selinux/config

SELINUX=disabled

sudo reboot

References
https://docs.fedoraproject.org/en-US/quick-docs/samba/
https://www.cyberciti.biz/faq/disable-selinux-on-centos-7-rhel-7-fedora-linux/

Trust the ASP.NET Core HTTPS development certificate on Fedora

sudo dnf install nss-tools

Setup Firefox

echo 'pref("general.config.filename", "firefox.cfg");
pref("general.config.obscure_value", 0);' > ./autoconfig.js

echo '//Enable policies.json
lockPref("browser.policies.perUserDir", false);' > firefox.cfg

echo "{
    \"policies\": {
        \"Certificates\": {
            \"Install\": [
            	\"aspnetcore-localhost-https.crt\"
            ]
        }
    }
}" > policies.json

dotnet dev-certs https -ep localhost.crt --format PEM

sudo mv autoconfig.js /usr/lib64/firefox/
sudo mv firefox.cfg /usr/lib64/firefox/
sudo mv policies.json /usr/lib64/firefox/distribution/
mkdir -p ~/.mozilla/certificates
cp localhost.crt ~/.mozilla/certificates/aspnetcore-localhost-https.crt

Trust Edge/Chrome

certutil -d sql:$HOME/.pki/nssdb -A -t "P,," -n localhost -i ./localhost.crt
certutil -d sql:$HOME/.pki/nssdb -A -t "C,," -n localhost -i ./localhost.crt

Trust dotnet-to-dotnet

sudo cp localhost.crt /etc/pki/tls/certs/aspnetcore-localhost-https.pem
sudo update-ca-trust

Cleanup

rm localhost.crt

References
https://docs.microsoft.com/en-us/aspnet/core/security/enforcing-ssl?view=aspnetcore-6.0&tabs=visual-studio#trust-https-certificate-on-linux
https://github.com/dotnet/aspnetcore/issues/32842
https://github.com/dotnet/aspnetcore/issues/32361