Update enforcing-ssl.md

[Rick-Anderson]

Fixes #22251

we've verified with a clean machine
Windows Sandbox is the easiest way to test on a clean machine.

[tmds]

@Rick-Anderson these steps are not working for me, see dotnet/aspnetcore#32361 (comment).

[javiercn]

@RickAndMSFT can we update the instructions here?

Firefox on Fedora

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
rm localhost.crt

Trust dotnet-to-dotnet on Fedora

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