Running OPC UA .Net Standard PubSub reference server on Ubuntu 20.04 using dotnet-sdk-3.1

High Level Info:

OPC UA .Net Standard under test: 1.4.371.96
OS: Ubuntu 20.04 (>20.04 not working due to dotnet-sdk-3.1 is not supported)

Install dotnet-sdk-3.1

$: wget https://packages.microsoft.com/config/ubuntu/20.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
$: sudo dpkg -i packages-microsoft-prod.deb
$: rm packages-microsoft-prod.deb
$: sudo apt update
$: sudo apt install dotnet-sdk-3.1

Clone OPC UA .Net Standard git repo

$: mkdir -p ~/prj
$: git clone -b 1.4.371.96 https://github.com/OPCFoundation/UA-.NETStandard.git

Install MQTT broker Mosquitto and supporting tools

$: sudo apt install mosquitto
$: sudo apt  install mosquitto-clients

Run mqtt sub client to see traffic

$: mosquitto_sub -h localhost -v -t '#'

Run reference PubSub publisher

$: cd ~/prj/UA-.NETStandard/Applications/ConsoleReferencePublisher
$: dotnet run --project ConsoleReferencePublisher.csproj --framework netcoreapp3.1

Run reference PubSub subscriber

$: cd ~/prj/UA-.NETStandard/Applications/ConsoleReferenceSubscriber
$: dotnet run --project ConsoleReferenceSubscriber.csproj --framework netcoreapp3.1

Ref(s):
Install the .NET SDK or the .NET Runtime on Ubuntu